GETWINDOWS: Retrieve the current graphics window.

IDLgrWindow: An on-screen area on a display device.

WDELETE Procedure: Delete Direct Graphics windows.

WIDGET_WINDOW: Create a graphics widget.

WINDOW: Create an empty graphics window.

WINDOW Procedure: Create a Direct Graphics window.

WSET: Select the current Direct Graphics window.

WSHOW: Expose or hide a Direct Graphics window.