EnableGadget()
USAGE
void EnableGadget(Window, GadgetID, On)
FUNCTION
Depending on the Boolean 'On', this either enables the gadget or disables it.
The Gadget is defined by its GadgetID number. If the Gadget is found in the
Gadget list of the window, its GADGDISABLED bitis either set or cleared. The
Gadget is redisplayed.
INPUTS
Window = Pointer to the window the gadget resides in.
GadgetID = Short integer ID of the requested gadget
On = Boolean flag,
TRUE to enable this Gadget,
FALSE to disable it.
RESULT
none (void)