ShowHide
WindowPtr theWindow ; ID of window to show or hide ShowHide lets you show or hide a window, without affecting the front-to-back ordering of the windows.
showFlag is a Boolean value specifying whether to show or hide a window. It may be one of:
This is a lower-level function. It has no effect on the highlighting or
front-to-back ordering of the windows (with HideWindow, hiding the frontmost window causes it to be deactivated while activating and
highlighting the window in the next lower plane).
Use this function with caution, and only when ShowWindow and