public static bool MessageHandler(ref Message m)
{
if (m.Msg == WM_ENDSESSION || (m.Msg == WM_QUERYENDSESSION && ShutdownInitiated))
{
m.Result = new IntPtr(ENDSESSION_CLOSEAPP);
return(true);
}
else if (m.Msg == WM_QUERYENDSESSION)
{
//system getting ready to shut down
//individual *forms* receive this message, so we must protect against a race condition
using (var shutdownMutex = new ScopedMutex(_appName + "{EA433526-9724-43FD-B175-6EA7BA7517A4}"))
{
if (ShutdownInitiated)
{
m.Result = new IntPtr(ENDSESSION_CLOSEAPP);
return(true);
}
ShutdownInitiated = true;
var recoveryMan = new RecoveryManager();
recoveryMan.CreateRecoveryData(recoveryMan.UnsafeShutdownPath);
ShutdownDumpComplete.Set();
m.Result = new IntPtr(ENDSESSION_CLOSEAPP);
return(true);
}
}
return(false);
}
protected override void WndProc(ref Message m)
{
if (RecoveryManager.MessageHandler(ref m))
{
return;
}
if (m.Msg == Win32.WM_COPYDATA)
{
var path = Win32.ReceiveWindowMessage(m);
OpenNew(path, false);
}
base.WndProc(ref m);
}