NAME
	CloseScreen -- Close an Intuition screen.

    SYNOPSIS
	Success = CloseScreen( Screen )
	D0 (V36)               A0

	BOOL CloseScreen( struct Screen * );
	/* returns BOOL in V36 and greater */

    FUNCTION
	Unlinks the screen, unlinks the viewport, deallocates everything that
	Intuition allocated when the screen was opened (using OpenScreen()).
	Doesn't care whether or not there are still any windows attached to the
	screen.  Doesn't try to close any attached windows; in fact, ignores
	them altogether (but see below for changes in V36).

	If this is the last screen to go, attempts to reopen Workbench.

	New for V36: this function will refuse to close the screen
	if there are windows open on the screen or if there are any
	outstanding screen locks (see LockPubScreen()) when
	CloseScreen() is called.  This avoids the almost certain crash
	when a screen is closed out from under a window.

    INPUTS
	Screen = pointer to the screen to be closed.

    RESULT
	New for V36: returns TRUE (1) if screen is closed,
	returns FALSE (0) if screen had open windows when
	called.

    BUGS

    SEE ALSO
	OpenScreen()