/// <summary>
/// Register for event notifications
/// </summary>
protected override void OnHandleCreated(EventArgs e)
{
base.OnHandleCreated(e);
// WtsRegisterSessionNotification requires Windows XP or higher
bool haveXp = Environment.OSVersion.Platform == PlatformID.Win32NT &&
(Environment.OSVersion.Version.Major > 5 ||
(Environment.OSVersion.Version.Major == 5 &&
Environment.OSVersion.Version.Minor >= 1));
if (haveXp)
{
log.Info("Registering session notification to WindowsXP");
registered = Win32Helper.WTSRegisterSessionNotification(Handle, Win32Helper.NOTIFY_FOR_THIS_SESSION);
}
log.Debug("Start HWND: " + Handle.ToString());
return;
}
public static void TurnOff(IntPtr hwnd)
{
log.Debug("Hwnd " + hwnd + " Turning off monitor...");
Win32Helper.SendMessage(hwnd, (uint)WindowsMessages.WM_SYSCOMMAND, (int)SysCommands.SC_MONITORPOWER, Win32Helper.MONITOR_OFF_PARAM);
log.Debug("Turned off monitor");
}
/// <summary>
/// Turn on computer monitor.
/// </summary>
/// <remarks>
/// In fact this API could never be called. When computer get any input (Keyboard, mouse, network), the monitor will be opned automatically at first.
/// </remarks>
public static void TurnOn()
{
Win32Helper.PostMessage(Win32Helper.HWND_BROADCAST, (uint)WindowsMessages.WM_SYSCOMMAND, (int)SysCommands.SC_MONITORPOWER, Win32Helper.MONITOR_ON_PARAM);
}