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Handling a Mouse Event

You can use the MLTE function TXNClick to process mouse events in a window's content region. This function takes care of scrolling, text selection, playing sound and movies, handling drag-and-drop operations, and responding to double-click events.

Listing 3-10 shows a MyDoClickInWindowContentRgn function that handles a mouse event that occurs in the content area of a text object attached to a window.

Listing 3-10	Handling a mouse event
void MyDoClickInWindowContentRgn (WindowPtr theWindow, EventRecord *event)
   {
    TXNObject    textObject;        
      
    // Call your own function to get text object.
    MyGetTextObject (theWindow, &textObject);
    // Call the MLTE function to process the event.
    TXNClick (textObject, event);
   }