gboolean gtk_gesture_get_bounding_box ( GtkGesture* gesture, GdkRectangle* rect )
If there are touch sequences being currently handled by
this function returns
TRUE and fills in
rect with the bounding
box containing all active touches. Otherwise,
FALSE will be returned.
Note: This function will yield unexpected results on touchpad
gestures. Since there is no correlation between physical and
pixel distances, these will look as if constrained in an
infinitely small area,
rect width and height will thus be 0
regardless of the number of touchpoints.
Available since: 3.14
Bounding box containing all active touches.
The argument will be set by the function. The returned data is owned by the instance.