NAME 
	HelpControl -- Enable/disable Gadget-Help feature. (V39)

    SYNOPSIS 
	HelpControl( window, flags )
	             A0      D0

	VOID HelpControl( struct Window *, ULONG );

    FUNCTION 
	This function can be used to turn Gadget-Help on or off for
	your window.  Gadget-Help will also be enabled/disabled
	accordingly for all other windows which share the same
	help-group.  This allows Gadget-Help to be well-behaved
	for multiple-window applications.

    INPUTS 
	window - Pointer to the window you wish to affect.  (Other windows
	    will also be affected, as explained above.
	flags - Currently, HC_GADGETHELP or zero are the allowed values.

    RESULT 
	One or more windows will have Gadget-Help turned on or off.

    NOTES
	You must use utility.library/GetUniqueID() to get a help-group
	identifier.  Never ever supply your own!

    SEE ALSO 
	WA_HelpGroup