NAME

XUnionRegion — compute the union of two regions. 

SYNOPSIS

XUnionRegion(sra, srb, dr_return) Region sra, srb; Region dr_return;

ARGUMENTS

sra

srbSpecify the two regions in which you want to perform the computation. 

dr_returnReturns the result of the computation. 

DESCRIPTION

XUnionRegion() computes the union of two regions and places the result in dr_return.  The resulting region will contain all the area of both the source regions. 

For more information on regions, see Volume One, Chapter 6, Drawing Graphics and Text. 

STRUCTURES

Region is a pointer to an opaque structure type. 

SEE ALSO

XClipBox(), XCreateRegion(), XDestroyRegion(), XEmptyRegion(), XEqualRegion(), XIntersectRegion(), XOffsetRegion(), XPointInRegion(), XPolygonRegion(), XRectInRegion(), XSetRegion(), XShrinkRegion(), XSubtractRegion(), XUnionRectWithRegion(), XXorRegion(). 

Xlib Reference Manual