ยค messagePopupF
Pop-up windows
Types
messagePopupF :: Graphic msg => F msg (msg, Click)
Description
messagePopupF is a dialog popup that shows a message and waits for
the user to click an OK button, and then goes away.
Input
	The message to show. Sending a message to
	messagePopupF causes the window to appear on the screen.
Output
	The latest input message paired with a Click is output when
        the user presses the OK button.
	The window disappears when this happens.
Example
 messagePopupF
See Also
confirmPopupF,
stringPopupF,
popupShellF.