The UMSXWindow and UMSImageWindow classes are an Ultimedia Services Version 2 feature and do not apply to Ultimedia Services Version 1.2.1.
UMSXWindow is an object designed to help manage an X Windows System window. It communicates with the X server to determine what image formats can be supported through ordinary windows.
Because the interface requires X11-specific structure definitions and information unavailable to SOM, the UMSXWindow object cannot be used with DSOM.
UMSImageWindow is an object that serves as a parent class for device-dependent objects that can take advantage of special hardware associated with X. It also serves as a default device-independent method to display images to a window through X.
To learn more about using UMSXWindow and UMSImageWindow, see: