## GtkTreeView GtkTreeView |

## Functions

gboolean | (*GtkTreeViewColumnDropFunc) ()
void | (*GtkTreeViewMappingFunc) ()
gboolean | (*GtkTreeViewSearchEqualFunc) ()
GtkWidget * | gtk_tree_view_new ()
gint | gtk_tree_view_get_level_indentation ()
gboolean | gtk_tree_view_get_show_expanders ()
void | gtk_tree_view_set_level_indentation ()
void | gtk_tree_view_set_show_expanders ()
GtkWidget * | gtk_tree_view_new_with_model ()
GtkTreeModel * | gtk_tree_view_get_model ()
void | gtk_tree_view_set_model ()
GtkTreeSelection * | gtk_tree_view_get_selection ()
GtkAdjustment * | gtk_tree_view_get_hadjustment ()
void | gtk_tree_view_set_hadjustment ()
GtkAdjustment * | gtk_tree_view_get_vadjustment ()
void | gtk_tree_view_set_vadjustment ()
gboolean | gtk_tree_view_get_headers_visible ()
void | gtk_tree_view_set_headers_visible ()
void | gtk_tree_view_columns_autosize ()
gboolean | gtk_tree_view_get_headers_clickable ()
void | gtk_tree_view_set_headers_clickable ()
void | gtk_tree_view_set_rules_hint ()
gboolean | gtk_tree_view_get_rules_hint ()
gint | gtk_tree_view_append_column ()
gint | gtk_tree_view_remove_column ()
gint | gtk_tree_view_insert_column ()
gint | gtk_tree_view_insert_column_with_attributes ()
gint | gtk_tree_view_insert_column_with_data_func ()
GtkTreeViewColumn * | gtk_tree_view_get_column ()
GList * | gtk_tree_view_get_columns ()
void | gtk_tree_view_move_column_after ()
void | gtk_tree_view_set_expander_column ()
GtkTreeViewColumn * | gtk_tree_view_get_expander_column ()
void | gtk_tree_view_set_column_drag_function ()
void | gtk_tree_view_scroll_to_point ()
void | gtk_tree_view_scroll_to_cell ()
void | gtk_tree_view_set_cursor ()
void | gtk_tree_view_set_cursor_on_cell ()
void | gtk_tree_view_get_cursor ()
void | gtk_tree_view_row_activated ()
void | gtk_tree_view_expand_all ()
void | gtk_tree_view_collapse_all ()
void | gtk_tree_view_expand_to_path ()
gboolean | gtk_tree_view_expand_row ()
gboolean | gtk_tree_view_collapse_row ()
void | gtk_tree_view_map_expanded_rows ()
gboolean | gtk_tree_view_row_expanded ()
void | gtk_tree_view_set_reorderable ()
gboolean | gtk_tree_view_get_reorderable ()
gboolean | gtk_tree_view_get_path_at_pos ()
void | gtk_tree_view_get_cell_area ()
void | gtk_tree_view_get_background_area ()
void | gtk_tree_view_get_visible_rect ()
gboolean | gtk_tree_view_get_visible_range ()
GdkWindow * | gtk_tree_view_get_bin_window ()
void | gtk_tree_view_widget_to_tree_coords ()
void | gtk_tree_view_tree_to_widget_coords ()
void | gtk_tree_view_convert_bin_window_to_tree_coords ()
void | gtk_tree_view_convert_bin_window_to_widget_coords ()
void | gtk_tree_view_convert_tree_to_bin_window_coords ()
void | gtk_tree_view_convert_tree_to_widget_coords ()
void | gtk_tree_view_convert_widget_to_bin_window_coords ()
void | gtk_tree_view_convert_widget_to_tree_coords ()
void | gtk_tree_view_enable_model_drag_dest ()
void | gtk_tree_view_enable_model_drag_source ()
void | gtk_tree_view_unset_rows_drag_source ()
void | gtk_tree_view_unset_rows_drag_dest ()
void | gtk_tree_view_set_drag_dest_row ()
void | gtk_tree_view_get_drag_dest_row ()
gboolean | gtk_tree_view_get_dest_row_at_pos ()
GdkPixmap * | gtk_tree_view_create_row_drag_icon ()
void | gtk_tree_view_set_enable_search ()
gboolean | gtk_tree_view_get_enable_search ()
gint | gtk_tree_view_get_search_column ()
void | gtk_tree_view_set_search_column ()
GtkTreeViewSearchEqualFunc | gtk_tree_view_get_search_equal_func ()
void | gtk_tree_view_set_search_equal_func ()
GtkEntry * | gtk_tree_view_get_search_entry ()
void | gtk_tree_view_set_search_entry ()
void | (*GtkTreeViewSearchPositionFunc) ()
GtkTreeViewSearchPositionFunc | gtk_tree_view_get_search_position_func ()
void | gtk_tree_view_set_search_position_func ()
gboolean | gtk_tree_view_get_fixed_height_mode ()
void | gtk_tree_view_set_fixed_height_mode ()
gboolean | gtk_tree_view_get_hover_selection ()
void | gtk_tree_view_set_hover_selection ()
gboolean | gtk_tree_view_get_hover_expand ()
void | gtk_tree_view_set_hover_expand ()
void | (*GtkTreeDestroyCountFunc) ()
void | gtk_tree_view_set_destroy_count_func ()
gboolean | (*GtkTreeViewRowSeparatorFunc) ()
GtkTreeViewRowSeparatorFunc | gtk_tree_view_get_row_separator_func ()
void | gtk_tree_view_set_row_separator_func ()
gboolean | gtk_tree_view_get_rubber_banding ()
void | gtk_tree_view_set_rubber_banding ()
gboolean | gtk_tree_view_is_rubber_banding_active ()
gboolean | gtk_tree_view_get_enable_tree_lines ()
void | gtk_tree_view_set_enable_tree_lines ()
GtkTreeViewGridLines | gtk_tree_view_get_grid_lines ()
void | gtk_tree_view_set_grid_lines ()
void | gtk_tree_view_set_tooltip_row ()
void | gtk_tree_view_set_tooltip_cell ()
gboolean | gtk_tree_view_get_tooltip_context ()
gint | gtk_tree_view_get_tooltip_column ()
void | gtk_tree_view_set_tooltip_column ()

## Properties

GtkTreeViewGridLines | enable-grid-lines | Read / Write
gboolean | enable-search | Read / Write
gboolean | enable-tree-lines | Read / Write
GtkTreeViewColumn * | expander-column | Read / Write
gboolean | fixed-height-mode | Read / Write
GtkAdjustment * | hadjustment | Read / Write
gboolean | headers-clickable | Read / Write
gboolean | headers-visible | Read / Write
gboolean | hover-expand | Read / Write
gboolean | hover-selection | Read / Write
gint | level-indentation | Read / Write
GtkTreeModel * | model | Read / Write
gboolean | reorderable | Read / Write
gboolean | rubber-banding | Read / Write
gboolean | rules-hint | Read / Write
gint | search-column | Read / Write
gboolean | show-expanders | Read / Write
gint | tooltip-column | Read / Write
GtkAdjustment * | vadjustment | Read / Write

## Style Properties

gboolean | allow-rules | Read
GdkColor * | even-row-color | Read
gint | expander-size | Read
gchar * | grid-line-pattern | Read
gint | grid-line-width | Read
gint | horizontal-separator | Read
gboolean | indent-expanders | Read
GdkColor * | odd-row-color | Read
gboolean | row-ending-details | Read
gchar * | tree-line-pattern | Read
gint | tree-line-width | Read
gint | vertical-separator | Read

## Signals

void | columns-changed | Run Last
void | cursor-changed | Run Last
gboolean | expand-collapse-cursor-row | Action
gboolean | move-cursor | Action
void | row-activated | Action
void | row-collapsed | Run Last
void | row-expanded | Run Last
gboolean | select-all | Action
gboolean | select-cursor-parent | Action
gboolean | select-cursor-row | Action
void | set-scroll-adjustments | Action
gboolean | start-interactive-search | Action
gboolean | test-collapse-row | Run Last
gboolean | test-expand-row | Run Last
gboolean | toggle-cursor-row | Action
gboolean | unselect-all | Action

## Types and Values

struct | GtkTreeView
enum | GtkTreeViewDropPosition
| GtkTreeViewPrivate
enum | GtkTreeViewGridLines

## Object Hierarchy

        GObject
        ╰── GInitiallyUnowned
            ╰── GtkObject
                ╰── GtkWidget
                    ╰── GtkContainer
                        ╰── GtkTreeView

## Implemented Interfaces

GtkTreeView implements AtkImplementorIface and GtkBuildable.

## Includes

    #include <gtk/gtk.h>

## Description

## Functions

### GtkTreeViewColumnDropFunc ()

    gboolean
    (*GtkTreeViewColumnDropFunc) (GtkTreeView *tree_view,
                                  GtkTreeViewColumn *column,
                                  GtkTreeViewColumn *prev_column,
                                  GtkTreeViewColumn *next_column,
                                  gpointer data);

### GtkTreeViewMappingFunc ()

    void
    (*GtkTreeViewMappingFunc) (GtkTreeView *tree_view,
                               GtkTreePath *path,
                               gpointer user_data);

### GtkTreeViewSearchEqualFunc ()

    gboolean
    (*GtkTreeViewSearchEqualFunc) (GtkTreeModel *model,
                                   gint column,
                                   const gchar *key,
                                   GtkTreeIter *iter,
                                   gpointer search_data);

### gtk_tree_view_new ()

    GtkWidget *
    gtk_tree_view_new (void);

Creates a new GtkTreeView widget.

#### Returns

A newly created GtkTreeView widget.

### gtk_tree_view_get_level_indentation ()

    gint
    gtk_tree_view_get_level_indentation (GtkTreeView *tree_view);

Returns the amount, in pixels, of extra indentation for child levels in `tree_view` .

#### Parameters

tree_view | a GtkTreeView. |

#### Returns

the amount of extra indentation for child levels in `tree_view` . A return value of 0 means that this feature is disabled.

Since: 2.12

### gtk_tree_view_get_show_expanders ()

    gboolean
    gtk_tree_view_get_show_expanders (GtkTreeView *tree_view);

Returns whether or not expanders are drawn in `tree_view` .

#### Parameters

tree_view | a GtkTreeView. |

#### Returns

`TRUE` if expanders are drawn in `tree_view` , `FALSE` otherwise.

Since: 2.12

### gtk_tree_view_set_level_indentation ()

    void
    gtk_tree_view_set_level_indentation (GtkTreeView *tree_view,
                                         gint indentation);

Sets the amount of extra indentation for child levels to use in `tree_view` in addition to the default indentation. The value should be specified in pixels, a value of 0 disables this feature and in this case only the default indentation will be used. This does not have any visible effects for lists.

#### Parameters

tree_view | a GtkTreeView |
indentation | the amount, in pixels, of extra indentation in `tree_view` . |

Since: 2.12

### gtk_tree_view_set_show_expanders ()

    void
    gtk_tree_view_set_show_expanders (GtkTreeView *tree_view,
                                      gboolean enabled);

Sets whether to draw and enable expanders and indent child rows in `tree_view` . When disabled there will be no expanders visible in trees and there will be no way to expand and collapse rows by default. Also note that hiding the expanders will disable the default indentation. You can set a custom indentation in this case using `gtk_tree_view_set_level_indentation()`. This does not have any visible effects for lists.

#### Parameters

tree_view | a GtkTreeView |
enabled | `TRUE` to enable expander drawing, `FALSE` otherwise. |

Since: 2.12

### gtk_tree_view_new_with_model ()

    GtkWidget *
    gtk_tree_view_new_with_model (GtkTreeModel *model);

Creates a new GtkTreeView widget with the model initialized to `model` .

#### Parameters

model | the model. |

#### Returns

A newly created GtkTreeView widget.

### gtk_tree_view_get_model ()

    GtkTreeModel *
    gtk_tree_view_get_model (GtkTreeView *tree_view);

Returns the model the GtkTreeView is based on. Returns `NULL` if the model is unset.

#### Parameters

tree_view | a GtkTreeView |

#### Returns

A GtkTreeModel, or `NULL` if none is currently being used.

[transfer none]

### gtk_tree_view_set_model ()

    void
    gtk_tree_view_set_model (GtkTreeView *tree_view,
                             GtkTreeModel *model);

Sets the model for a GtkTreeView. If the `tree_view` already has a model set, it will remove it before setting the new model. If `model` is `NULL`, then it will unset the old model.

#### Parameters

tree_view | A GtkTreeNode. |
model | The model. | [allow-none]

### gtk_tree_view_get_selection ()

    GtkTreeSelection *
    gtk_tree_view_get_selection (GtkTreeView *tree_view);

Gets the GtkTreeSelection associated with `tree_view` .

#### Parameters

tree_view | A GtkTreeView. |

#### Returns

A GtkTreeSelection object.

[transfer none]

### gtk_tree_view_get_hadjustment ()

    GtkAdjustment *
    gtk_tree_view_get_hadjustment (GtkTreeView *tree_view);

Gets the GtkAdjustment currently being used for the horizontal aspect.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

A GtkAdjustment object, or `NULL` if none is currently being used.

[transfer none]

### gtk_tree_view_set_hadjustment ()

    void
    gtk_tree_view_set_hadjustment (GtkTreeView *tree_view,
                                   GtkAdjustment *adjustment);

Sets the GtkAdjustment for the current horizontal aspect.

#### Parameters

tree_view | A GtkTreeView |
adjustment | The GtkAdjustment to set, or `NULL`. | [allow-none]

### gtk_tree_view_get_vadjustment ()

    GtkAdjustment *
    gtk_tree_view_get_vadjustment (GtkTreeView *tree_view);

Gets the GtkAdjustment currently being used for the vertical aspect.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

A GtkAdjustment object, or `NULL` if none is currently being used.

[transfer none]

### gtk_tree_view_set_vadjustment ()

    void
    gtk_tree_view_set_vadjustment (GtkTreeView *tree_view,
                                   GtkAdjustment *adjustment);

Sets the GtkAdjustment for the current vertical aspect.

#### Parameters

tree_view | A GtkTreeView |
adjustment | The GtkAdjustment to set, or `NULL`. | [allow-none]

### gtk_tree_view_get_headers_visible ()

    gboolean
    gtk_tree_view_get_headers_visible (GtkTreeView *tree_view);

Returns `TRUE` if the headers on the `tree_view` are visible.

#### Parameters

tree_view | A GtkTreeView. |

#### Returns

Whether the headers are visible or not.

### gtk_tree_view_set_headers_visible ()

    void
    gtk_tree_view_set_headers_visible (GtkTreeView *tree_view,
                                       gboolean headers_visible);

Sets the visibility state of the headers.

#### Parameters

tree_view | A GtkTreeView. |
headers_visible | `TRUE` if the headers are visible |

### gtk_tree_view_columns_autosize ()

    void
    gtk_tree_view_columns_autosize (GtkTreeView *tree_view);

Resizes all columns to their optimal width. Only works after the treeview has been realized.

#### Parameters

tree_view | A GtkTreeView. |

### gtk_tree_view_get_headers_clickable ()

    gboolean
    gtk_tree_view_get_headers_clickable (GtkTreeView *tree_view);

Returns whether all header columns are clickable.

#### Parameters

tree_view | A GtkTreeView. |

#### Returns

`TRUE` if all header columns are clickable, otherwise `FALSE`

Since: 2.10

### gtk_tree_view_set_headers_clickable ()

    void
    gtk_tree_view_set_headers_clickable (GtkTreeView *tree_view,
                                         gboolean setting);

Allow the column title buttons to be clicked.

#### Parameters

tree_view | A GtkTreeView. |
setting | `TRUE` if the columns are clickable. |

### gtk_tree_view_set_rules_hint ()

    void
    gtk_tree_view_set_rules_hint (GtkTreeView *tree_view,
                                  gboolean setting);

This function tells GTK+ that the user interface for your application requires users to read across tree rows and associate cells with one another. By default, GTK+ will then render the tree with alternating row colors. Do not use it just because you prefer the appearance of the ruled tree; that's a question for the theme. Some themes will draw tree rows in alternating colors even when rules are turned off, and users who prefer that appearance all the time can choose those themes. You should call this function only as a semantic hint to the theme engine that your tree makes alternating colors useful from a functional standpoint (since it has lots of columns, generally).

#### Parameters

tree_view | a GtkTreeView |
setting | `TRUE` if the tree requires reading across rows |

### gtk_tree_view_get_rules_hint ()

    gboolean
    gtk_tree_view_get_rules_hint (GtkTreeView *tree_view);

Gets the setting set by `gtk_tree_view_set_rules_hint()`.

#### Parameters

tree_view | a GtkTreeView |

#### Returns

`TRUE` if rules are useful for the user of this tree

### gtk_tree_view_append_column ()

    gint
    gtk_tree_view_append_column (GtkTreeView *tree_view,
                                 GtkTreeViewColumn *column);

Appends `column` to the list of columns. If `tree_view` has "fixed_height" mode enabled, then `column` must have its "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.

#### Parameters

tree_view | A GtkTreeView. |
column | The GtkTreeViewColumn to add. |

#### Returns

The number of columns in `tree_view` after appending.

### gtk_tree_view_remove_column ()

    gint
    gtk_tree_view_remove_column (GtkTreeView *tree_view,
                                 GtkTreeViewColumn *column);

Removes `column` from `tree_view` .

#### Parameters

tree_view | A GtkTreeView. |
column | The GtkTreeViewColumn to remove. |

#### Returns

The number of columns in `tree_view` after removing.

### gtk_tree_view_insert_column ()

    gint
    gtk_tree_view_insert_column (GtkTreeView *tree_view,
                                 GtkTreeViewColumn *column,
                                 gint position);

This inserts the `column` into the `tree_view` at `position` . If `position` is -1, then the column is inserted at the end. If `tree_view` has "fixed_height" mode enabled, then `column` must have its "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.

#### Parameters

tree_view | A GtkTreeView. |
column | The GtkTreeViewColumn to be inserted. |
position | The position to insert `column` in. |

#### Returns

The number of columns in `tree_view` after insertion.

### gtk_tree_view_insert_column_with_attributes ()

    gint
    gtk_tree_view_insert_column_with_attributes
                                   (GtkTreeView *tree_view,
                                    gint position,
                                    const gchar *title,
                                    GtkCellRenderer *cell,
                                    ...);

Creates a new GtkTreeViewColumn and inserts it into the `tree_view` at `position` . If `position` is -1, then the newly created column is inserted at the end. The column is initialized with the attributes given. If `tree_view` has "fixed_height" mode enabled, then the new column will have its sizing property set to be GTK_TREE_VIEW_COLUMN_FIXED.

#### Parameters

tree_view | A GtkTreeView |
position | The position to insert the new column in. |
title | The title to set the header to. |
cell | The GtkCellRenderer. |
Varargs | A `NULL`-terminated list of attributes. |

#### Returns

The number of columns in `tree_view` after insertion.

### gtk_tree_view_insert_column_with_data_func ()

    gint
    gtk_tree_view_insert_column_with_data_func
                                   (GtkTreeView *tree_view,
                                    gint position,
                                    const gchar *title,
                                    GtkCellRenderer *cell,
                                    GtkTreeCellDataFunc func,
                                    gpointer data,
                                    GDestroyNotify dnotify);

Convenience function that inserts a new column into the GtkTreeView with the given cell renderer and a GtkCellDataFunc to set cell renderer attributes (normally using data from the model). See also `gtk_tree_view_column_set_cell_data_func()`, `gtk_tree_view_column_pack_start()`. If `tree_view` has "fixed_height" mode enabled, then the new column will have its "sizing" property set to be GTK_TREE_VIEW_COLUMN_FIXED.

#### Parameters

tree_view | a GtkTreeView |
position | Position to insert, -1 for append |
title | column title |
cell | cell renderer for column |
func | function to set attributes of cell renderer |
data | data for `func` |
dnotify | destroy notifier for `data` |

#### Returns

number of columns in the tree view post-insert

### gtk_tree_view_get_column ()

    GtkTreeViewColumn *
    gtk_tree_view_get_column (GtkTreeView *tree_view,
                              gint n);

Gets the GtkTreeViewColumn at the given position in the tree_view.

#### Parameters

tree_view | A GtkTreeView. |
n | The position of the column, counting from 0. |

#### Returns

The GtkTreeViewColumn, or `NULL` if the position is outside the range of columns.

[transfer none]

### gtk_tree_view_get_columns ()

    GList *
    gtk_tree_view_get_columns (GtkTreeView *tree_view);

Returns a GList of all the GtkTreeViewColumn s currently in `tree_view` . The returned list must be freed with `g_list_free()`.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

A list of GtkTreeViewColumn s.

[element-type GtkTreeViewColumn][transfer container]

### gtk_tree_view_move_column_after ()

    void
    gtk_tree_view_move_column_after (GtkTreeView *tree_view,
                                     GtkTreeViewColumn *column,
                                     GtkTreeViewColumn *base_column);

Moves `column` to be after to `base_column` . If `base_column` is `NULL`, then `column` is placed in the first position.

#### Parameters

tree_view | A GtkTreeView |
column | The GtkTreeViewColumn to be moved. |
base_column | The GtkTreeViewColumn to be moved relative to, or `NULL`. | [allow-none]

### gtk_tree_view_set_expander_column ()

    void
    gtk_tree_view_set_expander_column (GtkTreeView *tree_view,
                                       GtkTreeViewColumn *column);

Sets the column to draw the expander arrow at. It must be in `tree_view` . If `column` is `NULL`, then the expander arrow is always at the first visible column.

If you do not want expander arrow to appear in your tree, set the expander column to a hidden column.

#### Parameters

tree_view | A GtkTreeView |
column | `NULL`, or the column to draw the expander arrow at. |

### gtk_tree_view_get_expander_column ()

    GtkTreeViewColumn *
    gtk_tree_view_get_expander_column (GtkTreeView *tree_view);

Returns the column that is the current expander column. This column has the expander arrow drawn next to it.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

The expander column.

[transfer none]

### gtk_tree_view_set_column_drag_function ()

    void
    gtk_tree_view_set_column_drag_function
                                   (GtkTreeView *tree_view,
                                    GtkTreeViewColumnDropFunc func,
                                    gpointer user_data,
                                    GDestroyNotify destroy);

Sets a user function for determining where a column may be dropped when dragged. This function is called on every column pair in turn at the beginning of a column drag to determine where a drop can take place. The arguments passed to `func` are: the `tree_view` , the GtkTreeViewColumn being dragged, the two GtkTreeViewColumn s determining the drop spot, and `user_data` . If either of the GtkTreeViewColumn arguments for the drop spot are `NULL`, then they indicate an edge. If `func` is set to be `NULL`, then `tree_view` reverts to the default behavior of allowing all columns to be dropped everywhere.

#### Parameters

tree_view | A GtkTreeView. |
func | A function to determine which columns are reorderable, or `NULL`. | [allow-none]
user_data | User data to be passed to `func` , or `NULL`. | [allow-none]
destroy | Destroy notifier for `user_data` , or `NULL`. | [allow-none]

### gtk_tree_view_scroll_to_point ()

    void
    gtk_tree_view_scroll_to_point (GtkTreeView *tree_view,
                                   gint tree_x,
                                   gint tree_y);

Scrolls the tree view such that the top-left corner of the visible area is `tree_x` , `tree_y` , where `tree_x` and `tree_y` are specified in tree coordinates. The `tree_view` must be realized before this function is called. If it isn't, you probably want to be using `gtk_tree_view_scroll_to_cell()`.

If either `tree_x` or `tree_y` are -1, then that direction isn't scrolled.

#### Parameters

tree_view | a GtkTreeView |
tree_x | X coordinate of new top-left pixel of visible area, or -1 |
tree_y | Y coordinate of new top-left pixel of visible area, or -1 |

### gtk_tree_view_scroll_to_cell ()

    void
    gtk_tree_view_scroll_to_cell (GtkTreeView *tree_view,
                                  GtkTreePath *path,
                                  GtkTreeViewColumn *column,
                                  gboolean use_align,
                                  gfloat row_align,
                                  gfloat col_align);

Moves the alignments of `tree_view` to the position specified by `column` and `path` . If `column` is `NULL`, then no horizontal scrolling occurs. Likewise, if `path` is `NULL` no vertical scrolling occurs. At a minimum, one of `column` or `path` need to be non-`NULL`. `row_align` determines where the row is placed, and `col_align` determines where `column` is placed. Both are expected to be between 0.0 and 1.0. 0.0 means left/top alignment, 1.0 means right/bottom alignment, 0.5 means center.

If `use_align` is `FALSE`, then the alignment arguments are ignored, and the tree does the minimum amount of work to scroll the cell onto the screen. This means that the cell will be scrolled to the edge closest to its current position. If the cell is currently visible on the screen, nothing is done.

This function only works if the model is set, and `path` is a valid row on the model. If the model changes before the `tree_view` is realized, the centered path will be modified to reflect this change.

#### Parameters

tree_view | A GtkTreeView. |
path | The path of the row to move to, or `NULL`. | [allow-none]
column | The GtkTreeViewColumn to move horizontally to, or `NULL`. | [allow-none]
use_align | whether to use alignment arguments, or `FALSE`. |
row_align | The vertical alignment of the row specified by `path` . |
col_align | The horizontal alignment of the column specified by `column` . |

### gtk_tree_view_set_cursor ()

    void
    gtk_tree_view_set_cursor (GtkTreeView *tree_view,
                              GtkTreePath *path,
                              GtkTreeViewColumn *focus_column,
                              gboolean start_editing);

Sets the current keyboard focus to be at `path` , and selects it. This is useful when you want to focus the user's attention on a particular row. If `focus_column` is not `NULL`, then focus is given to the column specified by it. Additionally, if `focus_column` is specified, and `start_editing` is `TRUE`, then editing should be started in the specified cell. This function is often followed by `gtk_widget_grab_focus` (`tree_view` ) in order to give keyboard focus to the widget. Please note that editing can only happen when the widget is realized.

If `path` is invalid for `model` , the current cursor (if any) will be unset and the function will return without failing.

#### Parameters

tree_view | A GtkTreeView |
path | A GtkTreePath |
focus_column | A GtkTreeViewColumn, or `NULL`. | [allow-none]
start_editing | `TRUE` if the specified cell should start being edited. |

### gtk_tree_view_set_cursor_on_cell ()

    void
    gtk_tree_view_set_cursor_on_cell (GtkTreeView *tree_view,
                                      GtkTreePath *path,
                                      GtkTreeViewColumn *focus_column,
                                      GtkCellRenderer *focus_cell,
                                      gboolean start_editing);

Sets the current keyboard focus to be at `path` , and selects it. This is useful when you want to focus the user's attention on a particular row. If `focus_column` is not `NULL`, then focus is given to the column specified by it. If `focus_column` and `focus_cell` are not `NULL`, and `focus_column` contains 2 or more editable or activatable cells, then focus is given to the cell specified by `focus_cell` . Additionally, if `focus_column` is specified, and `start_editing` is `TRUE`, then editing should be started in the specified cell. This function is often followed by `gtk_widget_grab_focus` (`tree_view` ) in order to give keyboard focus to the widget. Please note that editing can only happen when the widget is realized.

If `path` is invalid for `model` , the current cursor (if any) will be unset and the function will return without failing.

#### Parameters

tree_view | A GtkTreeView |
path | A GtkTreePath |
focus_column | A GtkTreeViewColumn, or `NULL`. | [allow-none]
focus_cell | A GtkCellRenderer, or `NULL`. | [allow-none]
start_editing | `TRUE` if the specified cell should start being edited. |

Since: 2.2

### gtk_tree_view_get_cursor ()

    void
    gtk_tree_view_get_cursor (GtkTreeView *tree_view,
                              GtkTreePath **path,
                              GtkTreeViewColumn **focus_column);

Fills in `path` and `focus_column` with the current path and focus column. If the cursor isn't currently set, then *`path` will be `NULL`. If no column currently has focus, then *`focus_column` will be `NULL`.

The returned GtkTreePath must be freed with `gtk_tree_path_free()` when you are done with it.

#### Parameters

tree_view | A GtkTreeView |
path | A pointer to be filled with the current cursor path, or `NULL`. | [out][transfer full][allow-none]
focus_column | A pointer to be filled with the current focus column, or `NULL`. | [out][transfer none][allow-none]

### gtk_tree_view_row_activated ()

    void
    gtk_tree_view_row_activated (GtkTreeView *tree_view,
                                 GtkTreePath *path,
                                 GtkTreeViewColumn *column);

Activates the cell determined by `path` and `column` .

#### Parameters

tree_view | A GtkTreeView |
path | The GtkTreePath to be activated. |
column | The GtkTreeViewColumn to be activated. |

### gtk_tree_view_expand_all ()

    void
    gtk_tree_view_expand_all (GtkTreeView *tree_view);

Recursively expands all nodes in the `tree_view` .

#### Parameters

tree_view | A GtkTreeView. |

### gtk_tree_view_collapse_all ()

    void
    gtk_tree_view_collapse_all (GtkTreeView *tree_view);

Recursively collapses all visible, expanded nodes in `tree_view` .

#### Parameters

tree_view | A GtkTreeView. |

### gtk_tree_view_expand_to_path ()

    void
    gtk_tree_view_expand_to_path (GtkTreeView *tree_view,
                                  GtkTreePath *path);

Expands the row at `path` . This will also expand all parent rows of `path` as necessary.

#### Parameters

tree_view | A GtkTreeView. |
path | path to a row. |

Since: 2.2

### gtk_tree_view_expand_row ()

    gboolean
    gtk_tree_view_expand_row (GtkTreeView *tree_view,
                              GtkTreePath *path,
                              gboolean open_all);

Opens the row so its children are visible.

#### Parameters

tree_view | a GtkTreeView |
path | path to a row |
open_all | whether to recursively expand, or just expand immediate children |

#### Returns

`TRUE` if the row existed and had children

### gtk_tree_view_collapse_row ()

    gboolean
    gtk_tree_view_collapse_row (GtkTreeView *tree_view,
                                GtkTreePath *path);

Collapses a row (hides its child rows, if they exist).

#### Parameters

tree_view | a GtkTreeView |
path | path to a row in the `tree_view` |

#### Returns

`TRUE` if the row was collapsed.

### gtk_tree_view_map_expanded_rows ()

    void
    gtk_tree_view_map_expanded_rows (GtkTreeView *tree_view,
                                     GtkTreeViewMappingFunc func,
                                     gpointer data);

Calls `func` on all expanded rows.

#### Parameters

tree_view | A GtkTreeView |
func | A function to be called. | [scope call]
data | User data to be passed to the function. |

### gtk_tree_view_row_expanded ()

    gboolean
    gtk_tree_view_row_expanded (GtkTreeView *tree_view,
                                GtkTreePath *path);

Returns `TRUE` if the node pointed to by `path` is expanded in `tree_view` .

#### Parameters

tree_view | A GtkTreeView. |
path | A GtkTreePath to test expansion state. |

#### Returns

`TRUE` if path is expanded.

### gtk_tree_view_set_reorderable ()

    void
    gtk_tree_view_set_reorderable (GtkTreeView *tree_view,
                                   gboolean reorderable);

This function is a convenience function to allow you to reorder models that support the GtkDragSourceIface and the GtkDragDestIface. Both GtkTreeStore and GtkListStore support these. If `reorderable` is `TRUE`, then the user can reorder the model by dragging and dropping rows. The developer can listen to these changes by connecting to the model's row_inserted and row_deleted signals. The reordering is implemented by setting up the tree view as a drag source and destination. Therefore, drag and drop can not be used in a reorderable view for any other purpose.

This function does not give you any degree of control over the order -- any reordering is allowed. If more control is needed, you should probably handle drag and drop manually.

#### Parameters

tree_view | A GtkTreeView. |
reorderable | `TRUE`, if the tree can be reordered. |

### gtk_tree_view_get_reorderable ()

    gboolean
    gtk_tree_view_get_reorderable (GtkTreeView *tree_view);

Retrieves whether the user can reorder the tree via drag-and-drop. See `gtk_tree_view_set_reorderable()`.

#### Parameters

tree_view | a GtkTreeView |

#### Returns

`TRUE` if the tree can be reordered.

### gtk_tree_view_get_path_at_pos ()

    gboolean
    gtk_tree_view_get_path_at_pos (GtkTreeView *tree_view,
                                   gint x,
                                   gint y,
                                   GtkTreePath **path,
                                   GtkTreeViewColumn **column,
                                   gint *cell_x,
                                   gint *cell_y);

Finds the path at the point (`x` , `y` ), relative to bin_window coordinates (please see `gtk_tree_view_get_bin_window()`). That is, `x` and `y` are relative to an events coordinates. `x` and `y` must come from an event on the `tree_view` only where `event->window == gtk_tree_view_get_bin_window ()`. It is primarily for things like popup menus. If `path` is non-`NULL`, then it will be filled with the GtkTreePath at that point. This path should be freed with `gtk_tree_path_free()`. If `column` is non-`NULL`, then it will be filled with the column at that point. `cell_x` and `cell_y` return the coordinates relative to the cell background (i.e. the `background_area` passed to `gtk_cell_renderer_render()`). This function is only meaningful if `tree_view` is realized. Therefore this function will always return `FALSE` if `tree_view` is not realized or does not have a model.

For converting widget coordinates (eg. the ones you get from GtkWidget::query-tooltip), please see `gtk_tree_view_convert_widget_to_bin_window_coords()`.

#### Parameters

tree_view | A GtkTreeView. |
x | The x position to be identified (relative to bin_window). |
y | The y position to be identified (relative to bin_window). |
path | A pointer to a GtkTreePath pointer to be filled in, or `NULL`. | [out][allow-none]
column | A pointer to a GtkTreeViewColumn pointer to be filled in, or `NULL`. | [out][transfer none][allow-none]
cell_x | A pointer where the X coordinate relative to the cell can be placed, or `NULL`. | [out][allow-none]
cell_y | A pointer where the Y coordinate relative to the cell can be placed, or `NULL`. | [out][allow-none]

#### Returns

`TRUE` if a row exists at that coordinate.

### gtk_tree_view_get_cell_area ()

    void
    gtk_tree_view_get_cell_area (GtkTreeView *tree_view,
                                 GtkTreePath *path,
                                 GtkTreeViewColumn *column,
                                 GdkRectangle *rect);

Fills the bounding rectangle in bin_window coordinates for the cell at the row specified by `path` and the column specified by `column` . If `path` is `NULL`, or points to a path not currently displayed, the `y` and `height` fields of the rectangle will be filled with 0. If `column` is `NULL`, the `x` and `width` fields will be filled with 0. The sum of all cell rects does not cover the entire tree; there are extra pixels in between rows, for example. The returned rectangle is equivalent to the `cell_area` passed to `gtk_cell_renderer_render()`. This function is only valid if `tree_view` is realized.

#### Parameters

tree_view | a GtkTreeView |
path | a GtkTreePath for the row, or `NULL` to get only horizontal coordinates. | [allow-none]
column | a GtkTreeViewColumn for the column, or `NULL` to get only vertical coordinates. | [allow-none]
rect | rectangle to fill with cell rect. | [out]

### gtk_tree_view_get_background_area ()

    void
    gtk_tree_view_get_background_area (GtkTreeView *tree_view,
                                       GtkTreePath *path,
                                       GtkTreeViewColumn *column,
                                       GdkRectangle *rect);

Fills the bounding rectangle in bin_window coordinates for the cell at the row specified by `path` and the column specified by `column` . If `path` is `NULL`, or points to a node not found in the tree, the `y` and `height` fields of the rectangle will be filled with 0. If `column` is `NULL`, the `x` and `width` fields will be filled with 0. The returned rectangle is equivalent to the `background_area` passed to `gtk_cell_renderer_render()`. These background areas tile to cover the entire bin window. Contrast with the `cell_area` , returned by `gtk_tree_view_get_cell_area()`, which returns only the cell itself, excluding surrounding borders and the tree expander area.

#### Parameters

tree_view | a GtkTreeView |
path | a GtkTreePath for the row, or `NULL` to get only horizontal coordinates. | [allow-none]
column | a GtkTreeViewColumn for the column, or `NULL` to get only vertical coordiantes. | [allow-none]
rect | rectangle to fill with cell background rect. | [out]

### gtk_tree_view_get_visible_rect ()

    void
    gtk_tree_view_get_visible_rect (GtkTreeView *tree_view,
                                    GdkRectangle *visible_rect);

Fills `visible_rect` with the currently-visible region of the buffer, in tree coordinates. Convert to bin_window coordinates with `gtk_tree_view_convert_tree_to_bin_window_coords()`. Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire scrollable area of the tree.

#### Parameters

tree_view | a GtkTreeView |
visible_rect | rectangle to fill. | [out]

### gtk_tree_view_get_visible_range ()

    gboolean
    gtk_tree_view_get_visible_range (GtkTreeView *tree_view,
                                     GtkTreePath **start_path,
                                     GtkTreePath **end_path);

`gtk_tree_view_get_visible_range` is deprecated and should not be used in newly-written code.

Sets `start_path` and `end_path` to be the first and last visible path. Note that there may be invisible paths in between.

The paths should be freed with `gtk_tree_path_free()` after use.

#### Parameters

tree_view | A GtkTreeView |
start_path | Return location for start of region, or `NULL`. | [out][allow-none]
end_path | Return location for end of region, or `NULL`. | [out][allow-none]

#### Returns

`TRUE`, if valid paths were placed in `start_path` and `end_path` .

Since: 2.8

### gtk_tree_view_get_bin_window ()

    GdkWindow *
    gtk_tree_view_get_bin_window (GtkTreeView *tree_view);

Returns the window that `tree_view` renders to. This is used primarily to compare to `event->window` to confirm that the event on `tree_view` is on the right window.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

A GdkWindow, or `NULL` when `tree_view` hasn't been realized yet.

[transfer none]

### gtk_tree_view_widget_to_tree_coords ()

    void
    gtk_tree_view_widget_to_tree_coords (GtkTreeView *tree_view,
                                         gint wx,
                                         gint wy,
                                         gint *tx,
                                         gint *ty);

`gtk_tree_view_widget_to_tree_coords` has been deprecated since version 2.12 and should not be used in newly-written code.

Due to historial reasons the name of this function is incorrect. For converting coordinates relative to the widget to bin_window coordinates, please see `gtk_tree_view_convert_widget_to_bin_window_coords()`.

Converts bin_window coordinates to coordinates for the tree (the full scrollable area of the tree).

#### Parameters

tree_view | a GtkTreeView |
wx | X coordinate relative to bin_window |
wy | Y coordinate relative to bin_window |
tx | return location for tree X coordinate |
ty | return location for tree Y coordinate |

### gtk_tree_view_tree_to_widget_coords ()

    void
    gtk_tree_view_tree_to_widget_coords (GtkTreeView *tree_view,
                                         gint tx,
                                         gint ty,
                                         gint *wx,
                                         gint *wy);

`gtk_tree_view_tree_to_widget_coords` has been deprecated since version 2.12 and should not be used in newly-written code.

Due to historial reasons the name of this function is incorrect. For converting bin_window coordinates to coordinates relative to bin_window, please see `gtk_tree_view_convert_bin_window_to_widget_coords()`.

Converts tree coordinates (coordinates in full scrollable area of the tree) to bin_window coordinates.

#### Parameters

tree_view | a GtkTreeView |
tx | tree X coordinate |
ty | tree Y coordinate |
wx | return location for X coordinate relative to bin_window |
wy | return location for Y coordinate relative to bin_window |

### gtk_tree_view_convert_bin_window_to_tree_coords ()

    void
    gtk_tree_view_convert_bin_window_to_tree_coords
                                   (GtkTreeView *tree_view,
                                    gint bx,
                                    gint by,
                                    gint *tx,
                                    gint *ty);

Converts bin_window coordinates to coordinates for the tree (the full scrollable area of the tree).

#### Parameters

tree_view | a GtkTreeView |
bx | X coordinate relative to bin_window |
by | Y coordinate relative to bin_window |
tx | return location for tree X coordinate. | [out]
ty | return location for tree Y coordinate. | [out]

Since: 2.12

### gtk_tree_view_convert_bin_window_to_widget_coords ()

    void
    gtk_tree_view_convert_bin_window_to_widget_coords
                                   (GtkTreeView *tree_view,
                                    gint bx,
                                    gint by,
                                    gint *wx,
                                    gint *wy);

Converts bin_window coordinates (see `gtk_tree_view_get_bin_window()`) to widget relative coordinates.

#### Parameters

tree_view | a GtkTreeView |
bx | bin_window X coordinate |
by | bin_window Y coordinate |
wx | return location for widget X coordinate. | [out]
wy | return location for widget Y coordinate. | [out]

Since: 2.12

### gtk_tree_view_convert_tree_to_bin_window_coords ()

    void
    gtk_tree_view_convert_tree_to_bin_window_coords
                                   (GtkTreeView *tree_view,
                                    gint tx,
                                    gint ty,
                                    gint *bx,
                                    gint *by);

Converts tree coordinates (coordinates in full scrollable area of the tree) to bin_window coordinates.

#### Parameters

tree_view | a GtkTreeView |
tx | tree X coordinate |
ty | tree Y coordinate |
bx | return location for X coordinate relative to bin_window. | [out]
by | return location for Y coordinate relative to bin_window. | [out]

Since: 2.12

### gtk_tree_view_convert_tree_to_widget_coords ()

    void
    gtk_tree_view_convert_tree_to_widget_coords
                                   (GtkTreeView *tree_view,
                                    gint tx,
                                    gint ty,
                                    gint *wx,
                                    gint *wy);

Converts tree coordinates (coordinates in full scrollable area of the tree) to widget coordinates.

#### Parameters

tree_view | a GtkTreeView |
tx | X coordinate relative to the tree |
ty | Y coordinate relative to the tree |
wx | return location for widget X coordinate. | [out]
wy | return location for widget Y coordinate. | [out]

Since: 2.12

### gtk_tree_view_convert_widget_to_bin_window_coords ()

    void
    gtk_tree_view_convert_widget_to_bin_window_coords
                                   (GtkTreeView *tree_view,
                                    gint wx,
                                    gint wy,
                                    gint *bx,
                                    gint *by);

Converts widget coordinates to coordinates for the bin_window (see `gtk_tree_view_get_bin_window()`).

#### Parameters

tree_view | a GtkTreeView |
wx | X coordinate relative to the widget |
wy | Y coordinate relative to the widget |
bx | return location for bin_window X coordinate. | [out]
by | return location for bin_window Y coordinate. | [out]

Since: 2.12

### gtk_tree_view_convert_widget_to_tree_coords ()

    void
    gtk_tree_view_convert_widget_to_tree_coords
                                   (GtkTreeView *tree_view,
                                    gint wx,
                                    gint wy,
                                    gint *tx,
                                    gint *ty);

Converts widget coordinates to coordinates for the tree (the full scrollable area of the tree).

#### Parameters

tree_view | a GtkTreeView |
wx | X coordinate relative to the widget |
wy | Y coordinate relative to the widget |
tx | return location for tree X coordinate. | [out]
ty | return location for tree Y coordinate. | [out]

Since: 2.12

### gtk_tree_view_enable_model_drag_dest ()

    void
    gtk_tree_view_enable_model_drag_dest (GtkTreeView *tree_view,
                                          const GtkTargetEntry *targets,
                                          gint n_targets,
                                          GdkDragAction actions);

Turns `tree_view` into a drop destination for automatic DND. Calling this method sets “reorderable” to `FALSE`.

#### Parameters

tree_view | a GtkTreeView |
targets | the table of targets that the drag will support. | [array length=n_targets]
n_targets | the number of items in `targets` |
actions | the bitmask of possible actions for a drag from this widget |

### gtk_tree_view_enable_model_drag_source ()

    void
    gtk_tree_view_enable_model_drag_source
                                   (GtkTreeView *tree_view,
                                    GdkModifierType start_button_mask,
                                    const GtkTargetEntry *targets,
                                    gint n_targets,
                                    GdkDragAction actions);

Turns `tree_view` into a drag source for automatic DND. Calling this method sets “reorderable” to `FALSE`.

#### Parameters

tree_view | a GtkTreeView |
start_button_mask | Mask of allowed buttons to start drag |
targets | the table of targets that the drag will support. | [array length=n_targets]
n_targets | the number of items in `targets` |
actions | the bitmask of possible actions for a drag from this widget |

### gtk_tree_view_unset_rows_drag_source ()

    void
    gtk_tree_view_unset_rows_drag_source (GtkTreeView *tree_view);

Undoes the effect of `gtk_tree_view_enable_model_drag_source()`. Calling this method sets “reorderable” to `FALSE`.

#### Parameters

tree_view | a GtkTreeView |

### gtk_tree_view_unset_rows_drag_dest ()

    void
    gtk_tree_view_unset_rows_drag_dest (GtkTreeView *tree_view);

Undoes the effect of `gtk_tree_view_enable_model_drag_dest()`. Calling this method sets “reorderable” to `FALSE`.

#### Parameters

tree_view | a GtkTreeView |

### gtk_tree_view_set_drag_dest_row ()

    void
    gtk_tree_view_set_drag_dest_row (GtkTreeView *tree_view,
                                     GtkTreePath *path,
                                     GtkTreeViewDropPosition pos);

Sets the row that is highlighted for feedback.

#### Parameters

tree_view | a GtkTreeView |
path | The path of the row to highlight, or `NULL`. | [allow-none]
pos | Specifies whether to drop before, after or into the row |

### gtk_tree_view_get_drag_dest_row ()

    void
    gtk_tree_view_get_drag_dest_row (GtkTreeView *tree_view,
                                     GtkTreePath **path,
                                     GtkTreeViewDropPosition *pos);

Gets information about the row that is highlighted for feedback.

#### Parameters

tree_view | a GtkTreeView |
path | Return location for the path of the highlighted row, or `NULL`. | [out][allow-none]
pos | Return location for the drop position, or `NULL`. | [out][allow-none]

### gtk_tree_view_get_dest_row_at_pos ()

    gboolean
    gtk_tree_view_get_dest_row_at_pos (GtkTreeView *tree_view,
                                       gint drag_x,
                                       gint drag_y,
                                       GtkTreePath **path,
                                       GtkTreeViewDropPosition *pos);

Determines the destination row for a given position. `drag_x` and `drag_y` are expected to be in widget coordinates. This function is only meaningful if `tree_view` is realized. Therefore this function will always return `FALSE` if `tree_view` is not realized or does not have a model.

#### Parameters

tree_view | a GtkTreeView |
drag_x | the position to determine the destination row for |
drag_y | the position to determine the destination row for |
path | Return location for the path of the highlighted row, or `NULL`. | [out][allow-none]
pos | Return location for the drop position, or `NULL`. | [out][allow-none]

#### Returns

whether there is a row at the given position, `TRUE` if this is indeed the case.

### gtk_tree_view_create_row_drag_icon ()

    GdkPixmap *
    gtk_tree_view_create_row_drag_icon (GtkTreeView *tree_view,
                                        GtkTreePath *path);

Creates a GdkPixmap representation of the row at `path` . This image is used for a drag icon.

#### Parameters

tree_view | a GtkTreeView |
path | a GtkTreePath in `tree_view` |

#### Returns

a newly-allocated pixmap of the drag icon.

[transfer none]

### gtk_tree_view_set_enable_search ()

    void
    gtk_tree_view_set_enable_search (GtkTreeView *tree_view,
                                     gboolean enable_search);

If `enable_search` is set, then the user can type in text to search through the tree interactively (this is sometimes called "typeahead find").

Note that even if this is `FALSE`, the user can still initiate a search using the "start-interactive-search" key binding.

#### Parameters

tree_view | A GtkTreeView |
enable_search | `TRUE`, if the user can search interactively |

### gtk_tree_view_get_enable_search ()

    gboolean
    gtk_tree_view_get_enable_search (GtkTreeView *tree_view);

Returns whether or not the tree allows to start interactive searching by typing in text.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

whether or not to let the user search interactively

### gtk_tree_view_get_search_column ()

    gint
    gtk_tree_view_get_search_column (GtkTreeView *tree_view);

Gets the column searched on by the interactive search code.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

the column the interactive search code searches in.

### gtk_tree_view_set_search_column ()

    void
    gtk_tree_view_set_search_column (GtkTreeView *tree_view,
                                     gint column);

Sets `column` as the column where the interactive search code should search in for the current model.

If the search column is set, users can use the "start-interactive-search" key binding to bring up search popup. The enable-search property controls whether simply typing text will also start an interactive search.

Note that `column` refers to a column of the current model. The search column is reset to -1 when the model is changed.

#### Parameters

tree_view | A GtkTreeView |
column | the column of the model to search in, or -1 to disable searching |

### gtk_tree_view_get_search_equal_func ()

    GtkTreeViewSearchEqualFunc
    gtk_tree_view_get_search_equal_func (GtkTreeView *tree_view);

Returns the compare function currently in use.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

the currently used compare function for the search code.

### gtk_tree_view_set_search_equal_func ()

    void
    gtk_tree_view_set_search_equal_func (GtkTreeView *tree_view,
                                         GtkTreeViewSearchEqualFunc search_equal_func,
                                         gpointer search_user_data,
                                         GDestroyNotify search_destroy);

Sets the compare function for the interactive search capabilities; note that somewhat like `strcmp()` returning 0 for equality GtkTreeViewSearchEqualFunc returns `FALSE` on matches.

#### Parameters

tree_view | A GtkTreeView |
search_equal_func | the compare function to use during the search |
search_user_data | user data to pass to `search_equal_func` , or `NULL`. | [allow-none]
search_destroy | Destroy notifier for `search_user_data` , or `NULL`. | [allow-none]

### gtk_tree_view_get_search_entry ()

    GtkEntry *
    gtk_tree_view_get_search_entry (GtkTreeView *tree_view);

Returns the GtkEntry which is currently in use as interactive search entry for `tree_view` . In case the built-in entry is being used, `NULL` will be returned.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

the entry currently in use as search entry.

[transfer none]

Since: 2.10

### gtk_tree_view_set_search_entry ()

    void
    gtk_tree_view_set_search_entry (GtkTreeView *tree_view,
                                    GtkEntry *entry);

Sets the entry which the interactive search code will use for this `tree_view` . This is useful when you want to provide a search entry in our interface at all time at a fixed position. Passing `NULL` for `entry` will make the interactive search code use the built-in popup entry again.

#### Parameters

tree_view | A GtkTreeView |
entry | the entry the interactive search code of `tree_view` should use or `NULL`. | [allow-none]

Since: 2.10

### GtkTreeViewSearchPositionFunc ()

    void
    (*GtkTreeViewSearchPositionFunc) (GtkTreeView *tree_view,
                                      GtkWidget *search_dialog,
                                      gpointer user_data);

### gtk_tree_view_get_search_position_func ()

    GtkTreeViewSearchPositionFunc
    gtk_tree_view_get_search_position_func
                                   (GtkTreeView *tree_view);

Returns the positioning function currently in use.

#### Parameters

tree_view | A GtkTreeView |

#### Returns

the currently used function for positioning the search dialog.

Since: 2.10

### gtk_tree_view_set_search_position_func ()

    void
    gtk_tree_view_set_search_position_func
                                   (GtkTreeView *tree_view,
                                    GtkTreeViewSearchPositionFunc func,
                                    gpointer data,
                                    GDestroyNotify destroy);

Sets the function to use when positioning the search dialog.

#### Parameters

tree_view | A GtkTreeView |
func | the function to use to position the search dialog, or `NULL` to use the default search position function. | [allow-none]
data | user data to pass to `func` , or `NULL`. | [allow-none]
destroy | Destroy notifier for `data` , or `NULL`. | [allow-none]

Since: 2.10

### gtk_tree_view_get_fixed_height_mode ()

    gboolean
    gtk_tree_view_get_fixed_height_mode (GtkTreeView *tree_view);

Returns whether fixed height mode is turned on for `tree_view` .

#### Parameters

tree_view | a GtkTreeView |

#### Returns

`TRUE` if `tree_view` is in fixed height mode

Since: 2.6

### gtk_tree_view_set_fixed_height_mode ()

    void
    gtk_tree_view_set_fixed_height_mode (GtkTreeView *tree_view,
                                         gboolean enable);

Enables or disables the fixed height mode of `tree_view` . Fixed height mode speeds up GtkTreeView by assuming that all rows have the same height. Only enable this option if all rows are the same height and all columns are of type `GTK_TREE_VIEW_COLUMN_FIXED`.

#### Parameters

tree_view | a GtkTreeView |
enable | `TRUE` to enable fixed height mode |

Since: 2.6

### gtk_tree_view_get_hover_selection ()

    gboolean
    gtk_tree_view_get_hover_selection (GtkTreeView *tree_view);

Returns whether hover selection mode is turned on for `tree_view` .

#### Parameters

tree_view | a GtkTreeView |

#### Returns

`TRUE` if `tree_view` is in hover selection mode

Since: 2.6

### gtk_tree_view_set_hover_selection ()

    void
    gtk_tree_view_set_hover_selection (GtkTreeView *tree_view,
                                       gboolean hover);

Enables of disables the hover selection mode of `tree_view` . Hover selection makes the selected row follow the pointer. Currently, this works only for the selection modes `GTK_SELECTION_SINGLE` and `GTK_SELECTION_BROWSE`.

#### Parameters

tree_view | a GtkTreeView |
hover | `TRUE` to enable hover selection mode |

Since: 2.6

### gtk_tree_view_get_hover_expand ()

    gboolean
    gtk_tree_view_get_hover_expand (GtkTreeView *tree_view);

Returns whether hover expansion mode is turned on for `tree_view` .

#### Parameters

tree_view | a GtkTreeView |

#### Returns

`TRUE` if `tree_view` is in hover expansion mode

Since: 2.6

### gtk_tree_view_set_hover_expand ()

    void
    gtk_tree_view_set_hover_expand (GtkTreeView *tree_view,
                                    gboolean expand);

Enables of disables the hover expansion mode of `tree_view` . Hover expansion makes rows expand or collapse if the pointer moves over them.

#### Parameters

tree_view | a GtkTreeView |
expand | `TRUE` to enable hover selection mode |

Since: 2.6

### GtkTreeDestroyCountFunc ()

    void
    (*GtkTreeDestroyCountFunc) (GtkTreeView *tree_view,
                                GtkTreePath *path,
                                gint children,
                                gpointer user_data);

### gtk_tree_view_set_destroy_count_func ()

    void
    gtk_tree_view_set_destroy_count_func (GtkTreeView *tree_view,
                                          GtkTreeDestroyCountFunc func,
                                          gpointer data,
                                          GDestroyNotify destroy);

This function should almost never be used. It is meant for private use by ATK for determining the number of visible children that are removed when the user collapses a row, or a row is deleted.

#### Parameters

tree_view | A GtkTreeView |
func | Function to be called when a view row is destroyed, or `NULL`. | [allow-none]
data | User data to be passed to `func` , or `NULL`. | [allow-none]
destroy | Destroy notifier for `data` , or `NULL`. | [allow-none]

### GtkTreeViewRowSeparatorFunc ()

    gboolean
    (*GtkTreeViewRowSeparatorFunc) (GtkTreeModel *model,
                                    GtkTreeIter *iter,
                                    gpointer data);

### gtk_tree_view_get_row_separator_func ()

    GtkTreeViewRowSeparatorFunc
    gtk_tree_view_get_row_separator_func (GtkTreeView *tree_view);

Returns the current row separator function.

#### Parameters

tree_view | a GtkTreeView |

#### Returns

the current row separator function.

Since: 2.6

### gtk_tree_view_set_row_separator_func ()

    void
    gtk_tree_view_set_row_separator_func (GtkTreeView *tree_view,
                                          GtkTreeViewRowSeparatorFunc func,
                                          gpointer data,
                                          GDestroyNotify destroy);

Sets the row separator function, which is used to determine whether a row should be drawn as a separator. If the row separator function is `NULL`, no separators are drawn. This is the default value.

#### Parameters

tree_view | a GtkTreeView |
func | a GtkTreeViewRowSeparatorFunc |
data | user data to pass to `func` , or `NULL`. | [allow-none]
destroy | destroy notifier for `data` , or `NULL`. | [allow-none]

Since: 2.6

### gtk_tree_view_get_rubber_banding ()

    gboolean
    gtk_tree_view_get_rubber_banding (GtkTreeView *tree_view);

Returns whether rubber banding is turned on for `tree_view` . If the selection mode is GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select multiple rows by dragging the mouse.

#### Parameters

tree_view | a GtkTreeView |

#### Returns

`TRUE` if rubber banding in `tree_view` is enabled.

Since: 2.10

### gtk_tree_view_set_rubber_banding ()

    void
    gtk_tree_view_set_rubber_banding (GtkTreeView *tree_view,
                                      gboolean enable);

Enables or disables rubber banding in `tree_view` . If the selection mode is GTK_SELECTION_MULTIPLE, rubber banding will allow the user to select multiple rows by dragging the mouse.

#### Parameters

tree_view | a GtkTreeView |
enable | `TRUE` to enable rubber banding |

Since: 2.10

### gtk_tree_view_is_rubber_banding_active ()

    gboolean
    gtk_tree_view_is_rubber_banding_active
                                   (GtkTreeView *tree_view);

Returns whether a rubber banding operation is currently being done in `tree_view` .

#### Parameters

tree_view | a GtkTreeView |

#### Returns

`TRUE` if a rubber banding operation is currently being done in `tree_view` .

Since: 2.12

### gtk_tree_view_get_enable_tree_lines ()

    gboolean
    gtk_tree_view_get_enable_tree_lines (GtkTreeView *tree_view);

Returns whether or not tree lines are drawn in `tree_view` .

#### Parameters

tree_view | a GtkTreeView. |

#### Returns

`TRUE` if tree lines are drawn in `tree_view` , `FALSE` otherwise.

Since: 2.10

### gtk_tree_view_set_enable_tree_lines ()

    void
    gtk_tree_view_set_enable_tree_lines (GtkTreeView *tree_view,
                                         gboolean enabled);

Sets whether to draw lines interconnecting the expanders in `tree_view` . This does not have any visible effects for lists.

#### Parameters

tree_view | a GtkTreeView |
enabled | `TRUE` to enable tree line drawing, `FALSE` otherwise. |

Since: 2.10

### gtk_tree_view_get_grid_lines ()

    GtkTreeViewGridLines
    gtk_tree_view_get_grid_lines (GtkTreeView *tree_view);

Returns which grid lines are enabled in `tree_view` .

#### Parameters

tree_view | a GtkTreeView |

#### Returns

a GtkTreeViewGridLines value indicating which grid lines are enabled.

Since: 2.10

### gtk_tree_view_set_grid_lines ()

    void
    gtk_tree_view_set_grid_lines (GtkTreeView *tree_view,
                                  GtkTreeViewGridLines grid_lines);

Sets which grid lines to draw in `tree_view` .

#### Parameters

tree_view | a GtkTreeView |
grid_lines | a GtkTreeViewGridLines value indicating which grid lines to enable. |

Since: 2.10

### gtk_tree_view_set_tooltip_row ()

    void
    gtk_tree_view_set_tooltip_row (GtkTreeView *tree_view,
                                   GtkTooltip *tooltip,
                                   GtkTreePath *path);

Sets the tip area of `tooltip` to be the area covered by the row at `path` . See also `gtk_tree_view_set_tooltip_column()` for a simpler alternative. See also `gtk_tooltip_set_tip_area()`.

#### Parameters

tree_view | a GtkTreeView |
tooltip | a GtkTooltip |
path | a GtkTreePath |

Since: 2.12

### gtk_tree_view_set_tooltip_cell ()

    void
    gtk_tree_view_set_tooltip_cell (GtkTreeView *tree_view,
                                    GtkTooltip *tooltip,
                                    GtkTreePath *path,
                                    GtkTreeViewColumn *column,
                                    GtkCellRenderer *cell);

Sets the tip area of `tooltip` to the area `path` , `column` and `cell` have in common. For example if `path` is `NULL` and `column` is set, the tip area will be set to the full area covered by `column` . See also `gtk_tooltip_set_tip_area()`.

Note that if `path` is not specified and `cell` is set and part of a column containing the expander, the tooltip might not show and hide at the correct position. In such cases `path` must be set to the current node under the mouse cursor for this function to operate correctly.

See also `gtk_tree_view_set_tooltip_column()` for a simpler alternative.

#### Parameters

tree_view | a GtkTreeView |
tooltip | a GtkTooltip |
path | a GtkTreePath or `NULL`. | [allow-none]
column | a GtkTreeViewColumn or `NULL`. | [allow-none]
cell | a GtkCellRenderer or `NULL`. | [allow-none]

Since: 2.12

### gtk_tree_view_get_tooltip_context ()

    gboolean
    gtk_tree_view_get_tooltip_context (GtkTreeView *tree_view,
                                       gint *x,
                                       gint *y,
                                       gboolean keyboard_tip,
                                       GtkTreeModel **model,
                                       GtkTreePath **path,
                                       GtkTreeIter *iter);

This function is supposed to be used in a “query-tooltip” signal handler for GtkTreeView. The `x` , `y` and `keyboard_tip` values which are received in the signal handler, should be passed to this function without modification.

The return value indicates whether there is a tree view row at the given coordinates (`TRUE`) or not (`FALSE`) for mouse tooltips. For keyboard tooltips the row returned will be the cursor row. When `TRUE`, then any of `model` , `path` and `iter` which have been provided will be set to point to that row and the corresponding model. `x` and `y` will always be converted to be relative to `tree_view` 's bin_window if `keyboard_tooltip` is `FALSE`.

#### Parameters

tree_view | a GtkTreeView |
x | the x coordinate (relative to widget coordinates). | [inout]
y | the y coordinate (relative to widget coordinates). | [inout]
keyboard_tip | whether this is a keyboard tooltip or not |
model | a pointer to receive a GtkTreeModel or `NULL`. | [out][allow-none]
path | a pointer to receive a GtkTreePath or `NULL`. | [out][allow-none]
iter | a pointer to receive a GtkTreeIter or `NULL`. | [out][allow-none]

#### Returns

whether or not the given tooltip context points to a row.

Since: 2.12

### gtk_tree_view_get_tooltip_column ()

    gint
    gtk_tree_view_get_tooltip_column (GtkTreeView *tree_view);

Returns the column of `tree_view` 's model which is being used for displaying tooltips on `tree_view` 's rows.

#### Parameters

tree_view | a GtkTreeView |

#### Returns

the index of the tooltip column that is currently being used, or -1 if this is disabled.

Since: 2.12

### gtk_tree_view_set_tooltip_column ()

    void
    gtk_tree_view_set_tooltip_column (GtkTreeView *tree_view,
                                      gint column);

If you only plan to have simple (text-only) tooltips on full rows, you can use this function to have GtkTreeView handle these automatically for you. `column` should be set to the column in `tree_view` 's model containing the tooltip texts, or -1 to disable this feature.

When enabled, “has-tooltip” will be set to `TRUE` and `tree_view` will connect a “query-tooltip” signal handler.

Note that the signal handler sets the text with `gtk_tooltip_set_markup()`, so &, <, etc have to be escaped in the text.

#### Parameters

tree_view | a GtkTreeView |
column | an integer, which is a valid column number for `tree_view` 's model |

Since: 2.12

## Types and Values

### struct GtkTreeView

    struct GtkTreeView;

### enum GtkTreeViewDropPosition

#### Members

GTK_TREE_VIEW_DROP_BEFORE |  |
GTK_TREE_VIEW_DROP_AFTER |  |
GTK_TREE_VIEW_DROP_INTO_OR_BEFORE |  |
GTK_TREE_VIEW_DROP_INTO_OR_AFTER |  |

### GtkTreeViewPrivate

    typedef struct _GtkTreeViewPrivate GtkTreeViewPrivate;

### enum GtkTreeViewGridLines

#### Members

GTK_TREE_VIEW_GRID_LINES_NONE |  |
GTK_TREE_VIEW_GRID_LINES_HORIZONTAL |  |
GTK_TREE_VIEW_GRID_LINES_VERTICAL |  |
GTK_TREE_VIEW_GRID_LINES_BOTH |  |

## Property Details

### The `“enable-grid-lines”` property

      “enable-grid-lines”        GtkTreeViewGridLines

Whether grid lines should be drawn in the tree view.

Flags: Read / Write

Default value: GTK_TREE_VIEW_GRID_LINES_NONE

### The `“enable-search”` property

      “enable-search”            gboolean

View allows user to search through columns interactively.

Flags: Read / Write

Default value: TRUE

### The `“enable-tree-lines”` property

      “enable-tree-lines”        gboolean

Whether tree lines should be drawn in the tree view.

Flags: Read / Write

Default value: FALSE

### The `“expander-column”` property

      “expander-column”          GtkTreeViewColumn *

Set the column for the expander column.

Flags: Read / Write

### The `“fixed-height-mode”` property

      “fixed-height-mode”        gboolean

Setting the ::fixed-height-mode property to `TRUE` speeds up GtkTreeView by assuming that all rows have the same height. Only enable this option if all rows are the same height. Please see `gtk_tree_view_set_fixed_height_mode()` for more information on this option.

Flags: Read / Write

Default value: FALSE

Since: 2.4

### The `“hadjustment”` property

      “hadjustment”              GtkAdjustment *

Horizontal Adjustment for the widget.

Flags: Read / Write

### The `“headers-clickable”` property

      “headers-clickable”        gboolean

Column headers respond to click events.

Flags: Read / Write

Default value: TRUE

### The `“headers-visible”` property

      “headers-visible”          gboolean

Show the column header buttons.

Flags: Read / Write

Default value: TRUE

### The `“hover-expand”` property

      “hover-expand”             gboolean

Enables of disables the hover expansion mode of `tree_view` . Hover expansion makes rows expand or collapse if the pointer moves over them.

This mode is primarily intended for treeviews in popups, e.g. in GtkComboBox or GtkEntryCompletion.

Flags: Read / Write

Default value: FALSE

Since: 2.6

### The `“hover-selection”` property

      “hover-selection”          gboolean

Enables of disables the hover selection mode of `tree_view` . Hover selection makes the selected row follow the pointer. Currently, this works only for the selection modes `GTK_SELECTION_SINGLE` and `GTK_SELECTION_BROWSE`.

This mode is primarily intended for treeviews in popups, e.g. in GtkComboBox or GtkEntryCompletion.

Flags: Read / Write

Default value: FALSE

Since: 2.6

### The `“level-indentation”` property

      “level-indentation”        gint

Extra indentation for each level.

Flags: Read / Write

Allowed values: >= 0

Default value: 0

Since: 2.12

### The `“model”` property

      “model”                    GtkTreeModel *

The model for the tree view.

Flags: Read / Write

### The `“reorderable”` property

      “reorderable”              gboolean

View is reorderable.

Flags: Read / Write

Default value: FALSE

### The `“rubber-banding”` property

      “rubber-banding”           gboolean

Whether to enable selection of multiple items by dragging the mouse pointer.

Flags: Read / Write

Default value: FALSE

### The `“rules-hint”` property

      “rules-hint”               gboolean

Set a hint to the theme engine to draw rows in alternating colors.

Flags: Read / Write

Default value: FALSE

### The `“search-column”` property

      “search-column”            gint

Model column to search through during interactive search.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

### The `“show-expanders”` property

      “show-expanders”           gboolean

`TRUE` if the view has expanders.

Flags: Read / Write

Default value: TRUE

Since: 2.12

### The `“tooltip-column”` property

      “tooltip-column”           gint

The column in the model containing the tooltip texts for the rows.

Flags: Read / Write

Allowed values: >= -1

Default value: -1

### The `“vadjustment”` property

      “vadjustment”              GtkAdjustment *

Vertical Adjustment for the widget.

Flags: Read / Write

## Style Property Details

### The `“allow-rules”` style property

      “allow-rules”              gboolean

Allow drawing of alternating color rows.

Flags: Read

Default value: TRUE

### The `“even-row-color”` style property

      “even-row-color”           GdkColor *

Color to use for even rows.

Flags: Read

### The `“expander-size”` style property

      “expander-size”            gint

Size of the expander arrow.

Flags: Read

Allowed values: >= 0

Default value: 12

### The `“grid-line-pattern”` style property

      “grid-line-pattern”        gchar *

Dash pattern used to draw the tree view grid lines.

Flags: Read

Default value: "\001\001"

### The `“grid-line-width”` style property

      “grid-line-width”          gint

Width, in pixels, of the tree view grid lines.

Flags: Read

Allowed values: >= 0

Default value: 1

### The `“horizontal-separator”` style property

      “horizontal-separator”     gint

Horizontal space between cells. Must be an even number.

Flags: Read

Allowed values: >= 0

Default value: 2

### The `“indent-expanders”` style property

      “indent-expanders”         gboolean

Make the expanders indented.

Flags: Read

Default value: TRUE

### The `“odd-row-color”` style property

      “odd-row-color”            GdkColor *

Color to use for odd rows.

Flags: Read

### The `“row-ending-details”` style property

      “row-ending-details”       gboolean

Enable extended row background themeing

`GtkTreeView:row-ending-details` has been deprecated since version 2.22 and should not be used in newly-written code.

This style property will be removed in GTK+ 3

Flags: Read

Default value: FALSE

### The `“tree-line-pattern”` style property

      “tree-line-pattern”        gchar *

Dash pattern used to draw the tree view lines.

Flags: Read

Default value: "\001\001"

### The `“tree-line-width”` style property

      “tree-line-width”          gint

Width, in pixels, of the tree view lines.

Flags: Read

Allowed values: >= 0

Default value: 1

### The `“vertical-separator”` style property

      “vertical-separator”       gint

Vertical space between cells. Must be an even number.

Flags: Read

Allowed values: >= 0

Default value: 2

## Signal Details

### The `“columns-changed”` signal

    void
    user_function (GtkTreeView *tree_view,
                   gpointer     user_data)

The number of columns of the treeview has changed.

#### Parameters

tree_view | the object on which the signal is emitted |
user_data | user data set when the signal handler was connected. |

Flags: Run Last

### The `“cursor-changed”` signal

    void
    user_function (GtkTreeView *tree_view,
                   gpointer     user_data)

The position of the cursor (focused cell) has changed.

#### Parameters

tree_view | the object on which the signal is emitted |
user_data | user data set when the signal handler was connected. |

Flags: Run Last

### The `“expand-collapse-cursor-row”` signal

    gboolean
    user_function (GtkTreeView *treeview,
                   gboolean     arg1,
                   gboolean     arg2,
                   gboolean     arg3,
                   gpointer     user_data)

Flags: Action

### The `“move-cursor”` signal

    gboolean
    user_function (GtkTreeView    *treeview,
                   GtkMovementStep arg1,
                   gint            arg2,
                   gpointer        user_data)

Flags: Action

### The `“row-activated”` signal

    void
    user_function (GtkTreeView       *tree_view,
                   GtkTreePath       *path,
                   GtkTreeViewColumn *column,
                   gpointer           user_data)

The "row-activated" signal is emitted when the method `gtk_tree_view_row_activated()` is called or the user double clicks a treeview row. It is also emitted when a non-editable row is selected and one of the keys: Space, Shift+Space, Return or Enter is pressed.

For selection handling refer to the tree widget conceptual overview as well as GtkTreeSelection.

#### Parameters

tree_view | the object on which the signal is emitted |
path | the GtkTreePath for the activated row |
column | the GtkTreeViewColumn in which the activation occurred |
user_data | user data set when the signal handler was connected. |

Flags: Action

### The `“row-collapsed”` signal

    void
    user_function (GtkTreeView *tree_view,
                   GtkTreeIter *iter,
                   GtkTreePath *path,
                   gpointer     user_data)

The given row has been collapsed (child nodes are hidden).

#### Parameters

tree_view | the object on which the signal is emitted |
iter | the tree iter of the collapsed row |
path | a tree path that points to the row |
user_data | user data set when the signal handler was connected. |

Flags: Run Last

### The `“row-expanded”` signal

    void
    user_function (GtkTreeView *tree_view,
                   GtkTreeIter *iter,
                   GtkTreePath *path,
                   gpointer     user_data)

The given row has been expanded (child nodes are shown).

#### Parameters

tree_view | the object on which the signal is emitted |
iter | the tree iter of the expanded row |
path | a tree path that points to the row |
user_data | user data set when the signal handler was connected. |

Flags: Run Last

### The `“select-all”` signal

    gboolean
    user_function (GtkTreeView *treeview,
                   gpointer     user_data)

Flags: Action

### The `“select-cursor-parent”` signal

    gboolean
    user_function (GtkTreeView *treeview,
                   gpointer     user_data)

Flags: Action

### The `“select-cursor-row”` signal

    gboolean
    user_function (GtkTreeView *treeview,
                   gboolean     arg1,
                   gpointer     user_data)

Flags: Action

### The `“set-scroll-adjustments”` signal

    void
    user_function (GtkTreeView   *horizontal,
                   GtkAdjustment *vertical,
                   GtkAdjustment *arg2,
                   gpointer       user_data)

Set the scroll adjustments for the tree view. Usually scrolled containers like GtkScrolledWindow will emit this signal to connect two instances of GtkScrollbar to the scroll directions of the GtkTreeView.

#### Parameters

horizontal | the horizontal GtkAdjustment |
vertical | the vertical GtkAdjustment |
user_data | user data set when the signal handler was connected. |

Flags: Action

### The `“start-interactive-search”` signal

    gboolean
    user_function (GtkTreeView *treeview,
                   gpointer     user_data)

Flags: Action

### The `“test-collapse-row”` signal

    gboolean
    user_function (GtkTreeView *tree_view,
                   GtkTreeIter *iter,
                   GtkTreePath *path,
                   gpointer     user_data)

The given row is about to be collapsed (hide its children nodes). Use this signal if you need to control the collapsibility of individual rows.

#### Parameters

tree_view | the object on which the signal is emitted |
iter | the tree iter of the row to collapse |
path | a tree path that points to the row |
user_data | user data set when the signal handler was connected. |

#### Returns

`FALSE` to allow collapsing, `TRUE` to reject

Flags: Run Last

### The `“test-expand-row”` signal

    gboolean
    user_function (GtkTreeView *tree_view,
                   GtkTreeIter *iter,
                   GtkTreePath *path,
                   gpointer     user_data)

The given row is about to be expanded (show its children nodes). Use this signal if you need to control the expandability of individual rows.

#### Parameters

tree_view | the object on which the signal is emitted |
iter | the tree iter of the row to expand |
path | a tree path that points to the row |
user_data | user data set when the signal handler was connected. |

#### Returns

`FALSE` to allow expansion, `TRUE` to reject

Flags: Run Last

### The `“toggle-cursor-row”` signal

    gboolean
    user_function (GtkTreeView *treeview,
                   gpointer     user_data)

Flags: Action

### The `“unselect-all”` signal

    gboolean
    user_function (GtkTreeView *treeview,
                   gpointer     user_data)

Flags: Action