Gtk.TreeView.is_blank_at_pos

### Method

# Gtk TreeViewis_blank_at_pos

#### Declaration [src]

    gboolean
    gtk_tree_view_is_blank_at_pos (
      GtkTreeView* tree_view,
      int x,
      int y,
      GtkTreePath** path,
      GtkTreeViewColumn** column,
      int* cell_x,
      int* cell_y
    )

#### Description [src]

Determine whether the point (`x`, `y`) in `tree_view` is blank, that is no cell content nor an expander arrow is drawn at the location. If so, the location can be considered as the background. You might wish to take special action on clicks on the background, such as clearing a current selection, having a custom context menu or starting rubber banding.

The `x` and `y` coordinate that are provided must be relative to bin_window coordinates. Widget-relative coordinates must be converted using gtk_tree_view_convert_widget_to_bin_window_coords().

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

The `path`, `column`, `cell_x` and `cell_y` arguments will be filled in likewise as for gtk_tree_view_get_path_at_pos(). Please see `gtk_tree_view_get_path_at_pos()` for more information.

#### Parameters

`x` | `int`
| The x position to be identified (relative to bin_window)
`y` | `int`
| The y position to be identified (relative to bin_window)
`path` | `GtkTreePath`
| A pointer to a `GtkTreePath` pointer to be filled in.
| The argument will be set by the function.
| The argument can be set to `NULL`.
| The argument can be `NULL`.
| The instance takes ownership of the data, and is responsible for freeing it.
`column` | `GtkTreeViewColumn`
| A pointer to a `GtkTreeViewColumn` pointer to be filled in.
| The argument will be set by the function.
| The argument can be set to `NULL`.
| The argument can be `NULL`.
| The data is owned by the caller of the function.
`cell_x` | `int*`
| A pointer where the X coordinate relative to the cell can be placed.
| The argument will be set by the function.
| The argument can be `NULL`.
| The instance takes ownership of the data, and is responsible for freeing it.
`cell_y` | `int*`
| A pointer where the Y coordinate relative to the cell can be placed.
| The argument will be set by the function.
| The argument can be `NULL`.
| The instance takes ownership of the data, and is responsible for freeing it.

#### Return value

Returns: | `gboolean`
| `TRUE` if the area at the given coordinates is blank, `FALSE` otherwise.