gtk:tree-view-is-blank-at-pos (view x y)

view -- a gtk:tree-view widget
x -- an integer with the x position to be identified (relative to the bin window)
y -- an integer with the y position to be identified (relative to the bin window)

path -- a gtk:tree-path instance, or nil
column -- a gtk:tree-view-column object, or nil
xcell -- an integer with the x coordinate relative to the cell, or nil
ycell -- an integer where the y coordinate relative to the cell, or nil

Determine whether the point (x,y) in the 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 coordinates that are provided must be relative to the bin window coordinates. Widget relative coordinates must be converted using the gtk:tree-view-convert-widget-to-bin-window-coords function.

For converting widget coordinates, for example, the ones you get from the "query-tooltip" signal, please see the gtk:tree-view-convert-widget-to-bin-window-coords function.

The path, column, xcell and ycell arguments will be returned likewise as for the gtk:tree-view-path-at-pos function.