Hi, in these days i've recompiled "Lock Workstation": an app which provides a login mask to lock Haiku boxes with a password (and i've also made a modern login mask, only using the magnificient WonderBrush) :-) Screenshot: http://s22.postimg.org/42zuiooy9/Lock_Workstation_Haiku.jpg For security reason, when LockWorkstation is activated, mouse click is disabled and also Team Monitor *should* be disabled, but CTRL ALT CANC when LockWorkstation is activate, will bring Team Monitor window, with the ability to kill (and so bypass) the login mask. This is the part of code which should skip/quit Team Monitor: BString strSignature; message->FindString("be:signature", &strSignature); if (strSignature.ICompare ("application/x-vnd.Be-input_server") == 0) { app_info info; be_roster->GetAppInfo (strSignature.String(), &info); BMessage msgGetProperty, msgSetProperty, msgReply; status_t result; msgGetProperty.what = B_GET_PROPERTY; msgGetProperty.AddSpecifier("Messenger"); msgGetProperty.AddSpecifier("Window", "Team Monitor"); result = BMessenger(info.signature, info.team).SendMessage(&msgGetProperty, &msgReply); if (result == B_OK) { BMessenger msng; if (msgReply.FindMessenger("result", &msng) == B_OK) { msng.SendMessage(QUIT_TEAM_MONITOR); app_info mwinfo; be_app->GetAppInfo(&mwinfo); be_roster->ActivateApp(mwinfo.team); Activate(true); } } } break; } default: BWindow::MessageReceived(message); break; } } /**********************************************************/ bool mWindow::QuitRequested() { be_app->PostMessage(B_QUIT_REQUESTED); return BWindow::QuitRequested(); } But as i've said doesn't work. How should i change this part of code to quit/kill Team Monitor on CTRL ALT CANC event when LockWorkstation is active? Thank you. -- Giovanni.