NAME XIntersectRegion, XUnionRegion, XUnionRectWithRegion, XSubtractRegion,
XXorRegion, XOffsetRegion, XShrinkRegion - region arithmetic SYNTAX int XIntersectRegion(Region sra, Region srb, Region drreturn); int XUnionRegion(Region sra, Region srb, Region drreturn); int XUnionRectWithRegion(XRectangle *rectangle, Region srcregion, Region destregionreturn); int XSubtractRegion(Region sra, Region srb, Region drreturn); int XXorRegion(Region sra, Region srb, Region drreturn); int XOffsetRegion(Region r, int dx, int dy); int XShrinkRegion(Region r, int dx, int dy); ARGUMENTS destregionreturn Returns the destination region. drreturn Returns the result of the computation. ds Dy move or shrink dx 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. sra srb Specify the two regions with which you want to perform the computation. srcregion 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 drreturn. 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 1.6.5 XIntersectRegion(3)