NAME
	DoDTMethodA - Do a datatypes method.                    (V39)

    SYNOPSIS
	retval = DoDTMethodA (o, win, req, msg);
	d0		      a0 a1   a2   a3

	ULONG DoDTMethodA (Object *, struct Window *,
			   struct Requester *, Msg);

	retval = DoDTMethod (o, win, req, data, ...);

	ULONG DoDTMethod (Object *, struct Window *,
			  struct Requester *, ULONG, ...);

    FUNCTION
	This function is used to perform a datatypes method.

    INPUTS
	o - Pointer to an object as returned by NewDTObjectA().

	win - Window that the object is attached to.

	req - Requester that the object is attached to.

	msg - The message to send to the object.

    RETURNS
	Returns the value returned by the method.

    SEE ALSO
	intuition.library/DoGadgetMethod()