The user can capture the non-Windows application's screen by pressing the ALT+PRNTSCRN key combination when the application is either full screen or in a window, or by making a selection and choosing the Copy command when the application is in a window. WINOLDAP calls the RenderSelection function to direct the grabber to copy the contents of the current selection to the clipboard.
To do a screen capture, WINOLDAP first calls the display grabber's selection functions by specifying a selection rectangle that consists of the entire screen of the non-Windows application. To the grabber, there is no difference between a screen capture and a normal selection.