DMXGetDesktopAttributes - determine global bounding box
#include <X11/extensions/dmxext.h>
Bool DMXGetDesktopAttributes(Display *dpy,
DMXDesktopAttributes *attr);
DMXGetDesktopAttributes() returns information about the desktop in
DMXDesktopAttributes:
typedef struct {
unsigned int width;
unsigned int height;
int shiftX;
int shiftY;
} DMXDesktopAttributes;
The size of the global bounding box is given in width, and
height. The shiftX and shiftY values will always be 0.
The global bounding box is computed whether or not Xinerama is active, but
it is only useful when using Xinerama.
The global bounding box used by Xdmx(1) may be larger than
the Xinerama screen size because of information in the configuration
file.
DMXGetDesktopAttributes() returns True unless there is a protocol
error.
DMXChangeDesktopAttributes(3), DMX(3), Xdmx(1)