XtAddExposureToRegion(3Xt)XtAddExposureToRegion(3Xt)NAMEXtAddExposureToRegion - merge exposure events into a region
SYNOPSIS
void XtAddExposureToRegion(event, region)
XEvent *event;
Region region;
ARGUMENTS
Specifies a pointer to the Expose or GraphicsExpose event. Specifies
the region object (as defined in <X11/Xutil.h>).
DESCRIPTION
The XtAddExposureToRegion 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 Expose or
GraphicsExpose event, XtAddExposureToRegion 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)