XUnionRegion() XUnionRegion()
Name
XUnionRegion - compute the union of two regions.
Synopsis
XUnionRegion(sra, srb, dr_return)
Region sra, srb;
Region dr_return;
Arguments
sra Specify the two regions in which you want to perform the computation.
srb
dr_return Returns the result of the computation.
Description
XUnionRegion() computes the union of two regions and places the result in dr_return. The resulting region will contain all the area of
both the source regions.
For more information on regions, see Volume One, Chapter 6, Drawing Graphics and Text.
Structures
Region is a pointer to an opaque structure type.
See Also
XClipBox(), XCreateRegion(), XDestroyRegion(), XEmptyRegion(), XEqualRegion(), XIntersectRegion(), XOffsetRegion(), XPointInRegion(),
XPolygonRegion(), XRectInRegion(), XSetRegion(), XShrinkRegion(), XSubtractRegion(), XUnionRectWithRegion(), XXorRegion().
Xlib - Regions XUnionRegion()
Check Out this Related Man Page
XIntersectRegion(3X11)XIntersectRegion(3X11)NAME
XIntersectRegion, XUnionRegion, XUnionRectWithRegion, XSubtractRegion, XXorRegion, XOffsetRegion, XShrinkRegion - region arithmetic
SYNOPSIS
XIntersectRegion(sra, srb, dr_return)
Region sra, srb, dr_return;
XUnionRegion(sra, srb, dr_return)
Region sra, srb, dr_return;
XUnionRectWithRegion(rectangle, src_region, dest_region_return)
XRectangle *rectangle;
Region src_region;
Region dest_region_return;
XSubtractRegion(sra, srb, dr_return)
Region sra, srb, dr_return;
XXorRegion(sra, srb, dr_return)
Region sra, srb, dr_return;
XOffsetRegion(r, dx, dy)
Region r;
int dx, dy;
XShrinkRegion(r, dx, dy)
Region r;
int dx, dy;
ARGUMENTS
Returns the destination region. Returns the result of the computation. Specify the x and y coordinates, which define the amount you want
to move or shrink the specified region. Specifies the region. Specifies the rectangle. Specify the two regions with which you want to
perform the computation. 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(3X11), XDrawRectangle(3X11), XEmptyRegion(3X11)
Xlib -- C Language X Interface
XIntersectRegion(3X11)
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