1XtAddExposureToRegion(3)         XT FUNCTIONS         XtAddExposureToRegion(3)
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NAME

6       XtAddExposureToRegion - merge exposure events into a region
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SYNTAX

9       #include <X11/Intrinsic.h>
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11       void XtAddExposureToRegion(XEvent *event, Region region);
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ARGUMENTS

14       event     Specifies a pointer to the Expose or GraphicsExpose event.
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16       region    Specifies the region object (as defined in <X11/Xutil.h>).
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DESCRIPTION

19       The XtAddExposureToRegion function computes the union of the rectangle
20       defined by the exposure event and the specified region.  Then, it
21       stores the results back in region.  If the event argument is not an Ex‐
22       pose or GraphicsExpose event, XtAddExposureToRegion returns without an
23       error and without modifying region.
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25       This function is used by the exposure compression mechanism (see Sec‐
26       tion 7.9.3).
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SEE ALSO

29       X Toolkit Intrinsics - C Language Interface
30       Xlib - C Language X Interface
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34X Version 11                      libXt 1.2.1         XtAddExposureToRegion(3)
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