gtkWidgetRegionIntersect: gtkWidgetRegionIntersect
Description
Computes the intersection of a widget's area and region, returning
the intersection. The result may be empty, use gdkRegionEmpty to
check.Usage
gtkWidgetRegionIntersect(object, region)
Arguments
region
a GdkRegion, in the same coordinate system as
widget->allocation. That is, relative to widget->window
for NO_WINDOW widgets; relative to the parent window
of widget->window for widgets with their own window. Value
GdkRegion] A newly allocated region holding the intersection of widget
and region. The coordinates of the return value are
relative to widget->window for NO_WINDOW widgets, and
relative to the parent window of widget->window for
widgets with their own window.