set_tip_area

Description:

public void set_tip_area (Rectangle rect)

Sets the area of the widget, where the contents of this tooltip apply, to be rect (in widget coordinates).

This is especially useful for properly setting tooltips on `GtkTreeView` rows and cells, `GtkIconViews`, etc.

For setting tooltips on `GtkTreeView`, please refer to the convenience functions for this: set_tooltip_row and set_tooltip_cell.

this	a `GtkTooltip`
rect	a `GdkRectangle`