XIntersectRegion
Section: XLIB FUNCTIONS (3)
Updated: libX11 1.3
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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.
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.
- 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