/// <summary>
/// Registers the application to receive power setting notifications
/// for the specific power setting event.
/// </summary>
/// <param name="handle">Handle indicating where the power setting
/// notifications are to be sent.</param>
/// <param name="powerSetting">The GUID of the power setting for
/// which notifications are to be sent.</param>
/// <returns>Returns a notification handle for unregistering
/// power notifications.</returns>
internal static int RegisterPowerSettingNotification(
SafeWindowHandle handle, Guid powerSetting)
{
int outHandle = NativeMethods.RegisterPowerSettingNotification(
handle,
ref powerSetting,
0);
return outHandle;
}
internal static extern int GetMessage(
out SafeNativeMethods.MSG lpMsg,
SafeWindowHandle hWnd,
uint wMsgFilterMin,
uint wMsgFilterMax);
internal static extern int RegisterPowerSettingNotification(
SafeWindowHandle hRecipient,
ref Guid PowerSettingGuid,
Int32 Flags);
internal PowerRegWindow()
{
// Register the window class.
del = new SafeNativeMethods.WNDPROC(this.WndProc);
IntPtr hInst = Marshal.GetHINSTANCE(
Assembly.GetEntryAssembly().GetModules()[0]);
SafeNativeMethods.WNDCLASSEX wndclass =
new SafeNativeMethods.WNDCLASSEX();
wndclass.cbSize = (uint)Marshal.SizeOf(
typeof(SafeNativeMethods.WNDCLASSEX));
wndclass.style = 11;
wndclass.lpfnWndProc = del;
wndclass.cbClsExtra = 0;
wndclass.cbWndExtra = 0;
wndclass.hInstance = hInst;
wndclass.lpszMenuName = null;
wndclass.lpszClassName = "MessageWnd2";
mm = NativeMethods.RegisterClassEx(ref wndclass);
int hr = Marshal.GetLastWin32Error();
Marshal.ThrowExceptionForHR(hr);
// Create the windowless window that provides
// the message pump needed to receive windows messages.
_handle = NativeMethods.CreateWindowEx(
0x08000000,
mm,
"mymessagewindow2",
0, 0, 0, 0, 0, SafeNativeMethods.HWND_MESSAGE,
0, hInst, IntPtr.Zero);
hr = Marshal.GetLastWin32Error();
//if (hr == 0)
//{
// throw new Win32Exception("Error creating message pump window.");
//}
Marshal.ThrowExceptionForHR(hr);
}
internal static extern int GetMessage(
out SafeNativeMethods.MSG lpMsg,
SafeWindowHandle hWnd,
uint wMsgFilterMin,
uint wMsgFilterMax);
internal static extern int RegisterPowerSettingNotification(
SafeWindowHandle hRecipient,
ref Guid PowerSettingGuid,
Int32 Flags);
