SOLVED Getting the value of a gadget

I have a CommandDataPlugin that creates a dialog with buttons and a checkbox.
It is easy to get what gadget what clicked, inside the Command method.
But how to I get the value of the checkbox?
I need to know if it is on or off, and Command only tells me what gadget was clicked.

You can just ask the control for its value:

    def Command(self, id, msg):
        if id==ID_FILE:
            self.chkFile = self.GetBool(ID_FILE)

(if ID_FILE is the dialog's ID for a checkbox)

You can just ask the control for its value:

    def Command(self, id, msg):
        if id==ID_FILE:
            self.chkFile = self.GetBool(ID_FILE)

(if ID_FILE is the dialog's ID for a checkbox)

Thank you so much. That did it!!