Question

I have a Windows app that uses the AppBar API to install as an application bar at the top of the screen (similar to the Windows task bar itself). This works great and the desktop size is adjusted accordingly, so my application is always visible.

However, if the user choose ‘Show Desktop’ (Windows+D), my application is hidden. Does anyone know of a way to trap ‘Show Desktop’ so I can ensure my application stays visible (I assume that Windows enumerates all top-level windows and hides them with ShowWindow(SW_HIDE).

Answer 1

Use the following code and pass the window handle to the function while form load.
Hopefully this resolves your problem.

public void SetFormOnDesktop(IntPtr hwnd)
{
    IntPtr hwndf = hwnd;
    IntPtr hwndParent = FindWindow("ProgMan", null);
    SetParent(hwndf, hwndParent);
}