1XIntersectRegion(3)             XLIB FUNCTIONS             XIntersectRegion(3)
2
3
4

NAME

6       XIntersectRegion,  XUnionRegion, XUnionRectWithRegion, XSubtractRegion,
7       XXorRegion, XOffsetRegion, XShrinkRegion - region arithmetic
8

SYNTAX

10       int XIntersectRegion(Region sra, Region srb, Region dr_return);
11
12       int XUnionRegion(Region sra, Region srb, Region dr_return);
13
14       int XUnionRectWithRegion(XRectangle *rectangle, Region src_region,  Re‐
15              gion dest_region_return);
16
17       int XSubtractRegion(Region sra, Region srb, Region dr_return);
18
19       int XXorRegion(Region sra, Region srb, Region dr_return);
20
21       int XOffsetRegion(Region r, int dx, int dy);
22
23       int XShrinkRegion(Region r, int dx, int dy);
24

ARGUMENTS

26       dest_region_return
27                 Returns the destination region.
28
29       dr_return Returns the result of the computation.
30
31       dx
32       dy        Specify  the x and y coordinates, which define the amount you
33                 want to move or shrink the specified region.
34
35       r         Specifies the region.
36
37       rectangle Specifies the rectangle.
38
39       sra
40       srb       Specify the two regions with which you want  to  perform  the
41                 computation.
42
43       src_region
44                 Specifies the source region to be used.
45

DESCRIPTION

47       The XIntersectRegion function computes the intersection of two regions.
48
49       The XUnionRegion function computes the union of two regions.
50
51       The XUnionRectWithRegion function updates the destination region from a
52       union of the specified rectangle and the specified source region.
53
54       The XSubtractRegion function subtracts srb from sra and stores the  re‐
55       sults in dr_return.
56
57       The XXorRegion function calculates the difference between the union and
58       intersection of two regions.
59
60       The XOffsetRegion function moves the specified region  by  a  specified
61       amount.
62
63       The  XShrinkRegion function reduces the specified region by a specified
64       amount.  Positive values shrink the size of the  region,  and  negative
65       values expand the region.
66

SEE ALSO

68       XCreateRegion(3), XDrawRectangle(3), XEmptyRegion(3)
69       Xlib - C Language X Interface
70
71
72
73X Version 11                     libX11 1.8.7              XIntersectRegion(3)
Impressum