XIntersectRegion(3X) XIntersectRegion(3X)
NAME
XIntersectRegion, XUnionRegion, XUnionRectWithRegion,
XSubtractRegion, XXorRegion, XOffsetRegion,
XShrinkRegion - region arthmetic
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
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
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XIntersectRegion(3X) XIntersectRegion(3X)
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), XEmptyRegion(3X11),
Xlib Programming Manual
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