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       void XtAddExposureToRegion(XEvent *event, Region region);
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ARGUMENTS

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

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

27       X Toolkit Intrinsics - C Language Interface
28       Xlib - C Language X Interface
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32X Version 11                      libXt 1.1.5         XtAddExposureToRegion(3)
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