2.3 Region

A region object can only be acquired by using the Xlib function CreateRegion.

Some of the Region functions in the X library have a result argument. In the region object methods, the methods modify the object of which the method is called instead.

Region objects (region_objects) have the following methods:

AddExposureToRegion( event): This function corresponds with XtAddExposureToRegion.

ClipBox( ): Returns (x, y, width, height). This function corresponds with XClipBox.

EmptyRegion( ): Returns success. This function corresponds with XEmptyRegion.

EqualRegion( region): Returns success. This function corresponds with XEqualRegion.

IntersectRegion( region): This function corresponds with XIntersectRegion.

OffsetRegion( dx, dy): This function corresponds with XOffsetRegion.

PointInRegion( x, y): Returns success. This function corresponds with XPointInRegion.

RectInRegion( x, y, width, height): Returns success. This function corresponds with XRectInRegion.

ShrinkRegion( dx, dy): This function corresponds with XShrinkRegion.

SubtractRegion( region): This function corresponds with XSubtractRegion.

UnionRectWithRegion( x, y, width, height): This function corresponds with XUnionRectWithRegion.

UnionRegion( region): This function corresponds with XUnionRegion.

XorRegion( region): This function corresponds with XXorRegion.