C# Process.MainWindowHandle always returns IntPtr Zero

Question

this is my code:

            using (Process game = Process.Start(new ProcessStartInfo() { 
        FileName=\"DatabaseCheck.exe\",
        RedirectStandardOu         


        

Answer 1

A workaround is to enumerate through all top-level windows and examine their process ids until you find a match...

    [DllImport("user32.dll")]
    public static extern IntPtr FindWindowEx(IntPtr parentWindow, IntPtr previousChildWindow, string windowClass, string windowTitle);

    [DllImport("user32.dll")]
    private static extern IntPtr GetWindowThreadProcessId(IntPtr window, out int process);

    private IntPtr[] GetProcessWindows(int process) {
        IntPtr[] apRet = (new IntPtr[256]);
        int iCount = 0;
        IntPtr pLast = IntPtr.Zero;
        do {
            pLast = FindWindowEx(IntPtr.Zero, pLast, null, null);
            int iProcess_;
            GetWindowThreadProcessId(pLast, out iProcess_);
            if(iProcess_ == process) apRet[iCount++] = pLast;
        } while(pLast != IntPtr.Zero);
        System.Array.Resize(ref apRet, iCount);
        return apRet;
    }