Table of Contents
XIntersectRegion, XUnionRegion,
XUnionRectWithRegion, XSubtractRegion, XXorRegion, XOffsetRegion, XShrinkRegion
- region arithmetic
- 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);
- 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
Dy 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.
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.
XCreateRegion(3X11)
, XDrawRectangle(3X11)
, XEmptyRegion(3X11)
Xlib - C Language X Interface
Table of Contents