DMXChangeDesktopAttributes(3)				     Library Functions Manual				     DMXChangeDesktopAttributes(3)

NAME

       DMXChangeDesktopAttributes - change global bounding box

SYNOPSIS

       #include <X11/extensions/dmxext.h>

       int DMXChangeDesktopAttributes(Display *dpy,
				      unsigned int mask,
				      DMXDesktopAttributes *attr);

DESCRIPTION

       DMXChangeDesktopAttributes()  resizes  the bounding box of the whole screen when using the Xinerama extension.  Otherwise, it has no effect
       on the screen layout.  An attribute mask is placed in mask and the attributes to change are placed in attr.

       The values that are used to compute mask are as follows:

       DMXDesktopWidth
       DMXDesktopHeight
       DMXDesktopShiftX
       DMXDesktopShiftY

       The DMXDesktopAttributes structure is:

       typedef struct {
	   unsigned int width;
	   unsigned int height;
	   int		shiftX;
	   int		shiftY;
       } DMXDesktopAttributes;

       width  and  height specify the new width and height for the bounding box.  shiftX  and  shiftY specify where the Xinerama  origin  will	be
       placed  with respect to the origin of the new bounding box.  This allows the left and upper edges of the bounding box to be changed without
       changing the visual position of the windows on the desktop.  If width  or  height is not specified, the current values will  be	used.	If
       shiftX  or  shiftY is not specified, 0 will be used.

       All coordinates are in the global DMX coordinate system.  If Xinerama is not active, an error will be generated.

RETURN VALUE

       DMXChangeDesktopAttributes()  will  return  0 on success, DmxBadXinerama if Xinerama is not active, DmxBadValue if the size of the bounding
       box is too large, and DmxBadReply if there was a protocol error.

       DMXChangeDesktopAttributes() can generate BadLength (if the request is malformed, which should never happen when using this library  inter-
       face), and BadValue (if any values are out of range).

SEE ALSO

       DMXGetDesktopAttributes(3), DMX(3), Xdmx(1)

X Version 11							   libdmx 1.1.2 				     DMXChangeDesktopAttributes(3)