(Input) EXTERNAL. Callback subroutine called if the menu item is selected. All routines take a single LOGICAL parameter that indicates whether the menu item is checked or not. You can assign the following predefined routines to menus:
WINPRINT - Prints the program.
WINSAVE - Saves the program.
WINEXIT - Terminates the program.
WINSELECTTEXT - Selects text from the current window.
WINSELECTGRAPHICS - Selects graphics from the current window.
WINSELECTALL - Selects the entire contents of the current window.
WININPUT - Brings to the top the child window requesting input and makes it the current window.
WINCOPY - Copies the selected text and/or graphics from the current window to the Clipboard.
WINPASTE - Allows the user to paste Clipboard contents (text only) to the current text window of the active window during a READ.
WINCLEARPASTE - Clears the paste buffer.
WINSIZETOFIT - Sizes output to fit window.
WINFULLSCREEN - Displays output in full screen.
WINSTATE - Toggles between pause and resume states of text output.
WINCASCADE - Cascades active windows.
WINTILE - Tiles active windows.
WINARRANGE - Arranges icons.
WINSTATUS - Enables a status bar.
WININDEX - Displays the index for QuickWin help.
WINUSING - Displays information on how to use Help.
WINABOUT - Displays information about the current QuickWin application.
NUL - No callback routine.