NAME
XtAddExposureToRegion - merge exposure events into a region
SYNTAX
void XtAddExposureToRegion(XEvent *event, Region region);
ARGUMENTS
event
Specifies a pointer to the
or
event.
region
Specifies the region object (as defined in
DESCRIPTION
The
function computes the union of the rectangle defined by the exposure
event and the specified region.
Then, it stores the results back in region.
If the event argument is not an
or
event,
returns without an error and without modifying region.
This function is used by the exposure compression mechanism
(see Section 7.9.3).
SEE ALSO
ČLÁNKY DO MAILU