static void Main(string[] args)
{
// Don't scan the image directory all too often.
// In true screensaver mode, this will be set to -1 (infinity).
SWA.Utilities.Directory.ResultValidForSeconds = 30;
#region Check if we have been started by the Linux xscreensaver(1)
// The protocol is like this:
// * A fullscreen screensaver is called without parameters
// * A preview screensaver is called with "-window-id 0xXXXX" arguments
// see: xscreensaver-5.44/driver/demo-Gtk.c : launch_preview_subproc()
string windowHandleStr = Environment.GetEnvironmentVariable("XSCREENSAVER_WINDOW");
if (!String.IsNullOrEmpty(windowHandleStr))
{
// Convert "0xXXXX" (hex) to "NNNN" (decimal)
windowHandleStr = UInt32.Parse(windowHandleStr.Substring(2),
System.Globalization.NumberStyles.AllowHexSpecifier).ToString();
// https://github.com/mono/mono/blob/master/mcs/class/System.Windows.Forms/System.Windows.Forms/XplatUIX11.cs
// When the MONO_XEXCEPTIONS environment variable is set,
// an Exception will be thrown when a X11 error is encountered;
// by default a message is displayed but execution continues.
//
// We prefer the Exception. Otherwise the app would continue running
// even when the connection to the XSCREENSAVER_WINDOW has been lost.
//
Environment.SetEnvironmentVariable("MONO_XEXCEPTIONS", "1");
if (args.Length > 0 && args[0] == "-window-id")
{
ScreenSaverPreviewController.Run(windowHandleStr);
}
else
{
ScreenSaverController.Run(windowHandleStr);
}
}
#endregion
else
#region Evaluate the command line options
if (args.Length > 0)
{
// Get the 2 character command line argument.
string arg = args[0].ToLowerInvariant().Trim().Substring(0, 2);
// Convert Linux style argument to Windows style.
if (arg == "-o")
{
arg = "/c";
} // options
if (arg == "-f")
{
arg = "/s";
} // fullscreen
switch (arg)
{
case "/c":
// Show the options dialog
Application.Run(new OptionsDialog());
break;
case "/p":
// Show a preview window within the Display settings panel.
ScreenSaverPreviewController.Run(args[1]);
break;
case "/s":
// Show screensaver form
SWA.Utilities.Display.EnableDpiAwareness();
SWA.Utilities.Directory.ResultValidForSeconds = -1;
// Create the ImageLoader as early as possible.
ImageLoader imageLoader = ImageLoader.GetScreenSaverImageLoader(Screen.PrimaryScreen.Bounds);
BlankSecondaryScreens();
Application.Run(new ScreenSaverForm(true, imageLoader));
break;
default:
MessageBox.Show("Invalid command line argument: " + args[0],
"Invalid Command Line Argument",
MessageBoxButtons.OK, MessageBoxIcon.Error);
break;
}
}
#endregion
else
#region Run as a regular, standalone application
{
SWA.Utilities.Display.EnableDpiAwareness();
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Form form = new MazeForm();
form.Icon = Properties.Resources.AriadneIcon_32x32;
Application.Run(form);
}
#endregion
}
/// <summary>
/// Starts a ScreenSaverController that behaves like in screen saver mode
/// on a Linux platform under control of xscreensaver(1).
/// </summary>
private void OnOpenScreenSaverHack(object sender, EventArgs e)
{
ScreenSaverController.Run();
}