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XIntersectRegion(3)             XLIB FUNCTIONS             XIntersectRegion(3)

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

SYNTAX
       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);

ARGUMENTS
       dest_region_return
                 Returns the destination region.

       dr_return Returns the result of the computation.

       dx

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

       r         Specifies the region.

       rectangle Specifies the rectangle.

       sra

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

       src_region
                 Specifies the source region to be used.

DESCRIPTION
       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
       amount.

       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.

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

X Version 11                     libX11 1.8.6              XIntersectRegion(3)