How to determine when the Windows 7 start menu opens

Question

I wrote a WPF application in C # that I would like to show every time the start menu opens and hides again when the menu is closed. I would prefer to do this without polling the status of the Start menu. So far I have tried to listen to SHELLHOOK messages, but I do not see anything useful there.

Answer 1

I can’t write the full code, but here is the logic of it,

• First find the taskbar handle using

  [DllImport("user32.dll", SetLastError = true)] public static extern IntPtr FindWindow(string lpClassName, string lpWindowName); 

  also passes Shell_TrayWnd as lpClassName

• Activate the Start menu by simulating a click button.

• Get the handle to the start menu window

• Use the GetWindowLong function to verify that it is open or not.