void gdk_window_begin_resize_drag ( GdkWindow* window, GdkWindowEdge edge, gint button, gint root_x, gint root_y, guint32 timestamp )
Begins a window resize operation (for a toplevel window).
This function assumes that the drag is controlled by the
client pointer device, use
to begin a drag with a different device.
The edge or corner from which the drag is started.
The button being used to drag, or 0 for a keyboard-initiated drag.
Root window X coordinate of mouse click that began the drag.
Root window Y coordinate of mouse click that began the drag.
Timestamp of mouse click that began the drag (use gdk_event_get_time())