WindowStateChanged プロパティ

// The client event WindowStateChanged takes two parameters sender and e
// sender  is the object which is raising the event
// e is the PostBackEventArgs
 
     function WDW1_WindowStateChanged(sender, e) {

         var wdw = $find("WebDialogWindow1");

         //Gets the state of WebDailogWindow
         var windowState = wdw.get_windowState();

         if (windowState == 1) {
             window.status = "WebDialogWindow Minimized";
         }
         else if (windowState == 2) {
             window.status = "WebDialogWindow Maximized";
         }
         else if (windowState == 3) {
             window.status = "WebDialogWindow Closed";
         }
         else {
             window.status = "WebDialogWindow Restored";
         }
         
         
     }