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.