ToggleCDViewer/ToggleCDViewer.cs at main · bawe/ToggleCDViewer · GitHub

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using System;
using System.Runtime.InteropServices;
using System.Diagnostics;

static class ToggleCDViewer
{

    private const int WS_MAXIMIZE = 0x01000000;
    private const int WS_MINIMIZE = 0x00020000;

    public const int SW_MINIMIZE = 6;
    public const int GWL_STYLE = -16;


    [DllImport("User32.dll")]
    public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);

    [DllImport("User32.dll")]
    public static extern int SetForegroundWindow(IntPtr hwnd);

    [DllImport("user32.dll")]
    [return: MarshalAs(UnmanagedType.Bool)]
    static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);

    [DllImport("user32.dll", SetLastError = true)]
    static extern int GetWindowLong(IntPtr hWnd, int nIndex);

    [STAThread]
    static void Main()
    {
        Process[] processes = Process.GetProcessesByName("CDViewer");

        foreach (Process p in processes)
        {

            IntPtr windowHandle = p.MainWindowHandle;

            int style = GetWindowLong(windowHandle, GWL_STYLE);
            if ((style & WS_MAXIMIZE) == WS_MAXIMIZE)
            {
                //It's maximized
                ShowWindow(windowHandle, SW_MINIMIZE);
            }
            else if ((style & WS_MINIMIZE) == WS_MINIMIZE)
            {
                //It's minimized
                ShowWindowAsync(windowHandle, 4);
                SetForegroundWindow(windowHandle);
            }

        }
    }

}