XtAddExposureToRegion(3Xt) X11R5 XtAddExposureToRegion(3Xt)NAMEXtAddExposureToRegion - merge exposure events into a region
SYNTAX
void XtAddExposureToRegion(event, region)
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 expo‐
sure 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 Sec‐
tion 7.9.3).
SEE ALSO
X Toolkit Intrinsics - C Language Interface
Xlib - C Language X Interface
XtAddExposureToRegion(3Xt)