MyShowHide
Shows or hides a window associated with a frame. When creating a frame, you must designate a callback function to show or hide the window associated with it. For example, this is how you would define your show/hide function if you were to name it MyShowHide:
void MyShowHide(JMFrameRef frame, Boolean showFrameRequested);
frame- The frame to be shown or hidden.
showFrameRequested- A Boolean value. If
showFrameRequestedis true, the window should be displayed. If false, the window should be hidden.