XtAddExposureToRegion(3xt) XT FUNCTIONS XtAddExposureToRegion(3xt)NAMEXtAddExposureToRegion - merge exposure events into a region
SYNTAX
cc [ flag... ] file... -lXt [ library... ]
void XtAddExposureToRegion(XEvent *event, Region region);
ARGUMENTS
event Specifies a pointer to the Expose or GraphicsExpose event.
region 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
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬───────────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼───────────────────────────────────┤
│Availability │x11/library/toolkit/libxt │
├─────────────────────────────┼───────────────────────────────────┤
│Interface Stability │Committed │
├─────────────────────────────┼───────────────────────────────────┤
│MT-Level │See XtToolkitThreadInitialize(3XT) │
└─────────────────────────────┴───────────────────────────────────┘
X Version 11 libXt 1.0.8 XtAddExposureToRegion(3xt)