-- card: 159171 from stack: in -- bmap block id: 0 -- flags: 0000 -- background id: 85668 -- name: -- part contents for background part 1 ----- text ----- message -- part contents for background part 2 ----- text ----- The basic unit HyperTalk uses to communicate and to pass control among objects. For example, "MouseUp" is a message that the mouse button has been clicked. A button might have a message handler that says what to do when it receives the mouseUp message. -- part contents for background part 22 ----- text ----- 453,238