XmToggleButtonGadgetSetState sets or changes the ToggleButtonGadget's current state.
widget Specifies the ToggleButtonGadget widget ID.
state Specifies a Boolean value that indicates whether the ToggleButtonGadget state is selected or
unselected. If the value is True, the button state is selected; if it is False, the button
state is unselected.
notify Indicates whether XmNvalueChangedCallback is called; it can be either True or False. The
XmNvalueChangedCallback is only called when this function changes the state of the
ToggleButtonGadget. When this argument is True and the ToggleButtonGadget is a child of a
RowColumn widget whose XmNradioBehavior is True, setting the ToggleButtonGadget causes other
ToggleButton and ToggleButtonGadget children of the RowColumn to be unselected.
For a complete definition of ToggleButtonGadget and its associated resources, see
XmToggleButtonGadget(3).