XIntersectRegion man page on QNX

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XIntersectRegion(3)		XLIB FUNCTIONS		   XIntersectRegion(3)

       XIntersectRegion, XUnionRegion, XUnionRectWithRegion, XSubtractRegion,
       XXorRegion, XOffsetRegion, XShrinkRegion - region arithmetic

       int XIntersectRegion(Region sra, Region srb, Region dr_return);

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

       int XUnionRectWithRegion(XRectangle *rectangle, Region src_region,
	      Region dest_region_return);

       int XSubtractRegion(Region sra, Region srb, Region dr_return);

       int XXorRegion(Region sra, Region srb, Region dr_return);

       int XOffsetRegion(Region r, int dx, int dy);

       int XShrinkRegion(Region r, int dx, int dy);

		 Returns the destination region.

       dr_return Returns the result of the computation.	 ds Dy move or shrink

       dy	 Specify the x and y coordinates, which define the amount you
		 want to  the specified region.

       r	 Specifies the region.

       rectangle Specifies the rectangle.

       srb	 Specify the two regions with which you want to perform the

		 Specifies the source region to be used.

       The XIntersectRegion function computes the intersection of two regions.

       The XUnionRegion function computes the union of two regions.

       The XUnionRectWithRegion function updates the destination region from a
       union of the specified rectangle and the specified source region.

       The XSubtractRegion function subtracts srb from sra and stores the
       results in dr_return.

       The XXorRegion function calculates the difference between the union and
       intersection of two regions.

       The XOffsetRegion function moves the specified region by a specified

       The XShrinkRegion function reduces the specified region by a specified
       amount.	Positive values shrink the size of the region, and negative
       values expand the region.

       XCreateRegion(3), XDrawRectangle(3), XEmptyRegion(3)
       Xlib - C Language X Interface

X Version 11			 libX11 1.3.5		   XIntersectRegion(3)
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