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Manpages XIntersectRegionSection: XLIB FUNCTIONS (3X11)Updated: Release 6.5 Index Return to Main Contents NAMEXIntersectRegion, XUnionRegion, XUnionRectWithRegion, XSubtractRegion, XXorRegion, XOffsetRegion, XShrinkRegion - region arithmeticSYNTAXXIntersectRegion(sra, srb, dr_return)Region sra, srb, dr_return;
XUnionRegion(sra, srb, dr_return)
XUnionRectWithRegion(rectangle, src_region,
dest_region_return)
XSubtractRegion(sra, srb, dr_return)
XXorRegion(sra, srb, dr_return)
XOffsetRegion(r, dx, dy)
XShrinkRegion(r, dx, dy)
ARGUMENTS
DESCRIPTIONThe 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 ALSOXCreateRegion(3X11), XDrawRectangle(3X11), XEmptyRegion(3X11)Xlib - C Language X Interface
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