XCreateRegion, XSetRegion, XDestroyRegion - create or destroy regions
SYNTAX
Region XCreateRegion(void);
int XSetRegion(Display *display, GC gc, Region r);
int XDestroyRegion(Region r);
ARGUMENTS
display
Specifies the connection to the X server.
gc
Specifies the GC.
r
Specifies the region.
DESCRIPTION
The
XCreateRegion
function creates a new empty region.
The
XSetRegion
function sets the clip-mask in the GC to the specified region.
The region is specified relative to the drawable's origin.
The resulting GC clip origin is implementation-dependent.
Once it is set in the GC,
the region can be destroyed.
The
XDestroyRegion
function deallocates the storage associated with a specified region.