[mf] 14350: hide login screen to make the login on XP faster

hide login screen to make the login on XP faster
Modified: trunk/reactos/subsys/system/explorer/explorer.cpp
  _____

Modified: trunk/reactos/subsys/system/explorer/explorer.cpp
--- trunk/reactos/subsys/system/explorer/explorer.cpp	2005-03-27
13:03:30 UTC (rev 14349)
+++ trunk/reactos/subsys/system/explorer/explorer.cpp	2005-03-27
16:32:06 UTC (rev 14350)
@@ -705,6 +705,19 @@

#endif	// __MINGW && UNICODE

+static bool SetShellReadyEvent(LPCTSTR evtName)
+{
+	HANDLE hEvent = OpenEvent(EVENT_MODIFY_STATE, FALSE, evtName);
+	if (!hEvent)
+		return false;
+
+	SetEvent(hEvent);
+	CloseHandle(hEvent);
+
+	return true;
+}
+
+
 int WINAPI _tWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance,
LPTSTR lpCmdLine, int nShowCmd)
 {
    CONTEXT("WinMain()");
@@ -758,11 +771,15 @@
    	}

startup_desktop = TRUE;
-	} else
+	} else {
    	 // create desktop window and task bar only, if there is
no other shell and we are
    	 // the first explorer instance
+		 // MS Explorer looks additionally into the registry
entry HKCU\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\shell,
+		 // to decide wether it is currently configured as shell
application.
    	startup_desktop = !any_desktop_running;
+	}

+
    bool autostart = !any_desktop_running;

// disable autostart if the SHIFT key is pressed
@@ -803,6 +820,15 @@
    }
 #endif

+
+	if (startup_desktop) {
+		 // hide the XP login screen (Credit to Nicolas Escuder)
+		 // another undocumented event: "Global\msgina:
ReturnToWelcome"
+		if (!SetShellReadyEvent(TEXT("msgina:
ShellReadyEvent")))
+			SetShellReadyEvent(TEXT("Global\msgina:
ShellReadyEvent"));
+	}
+
+
    bool use_gdb_stub = false;	// !IsDebuggerPresent();

if (_tcsstr(lpCmdLine,TEXT("-debug")))
@@ -842,6 +868,7 @@
    	g_Globals._desktops.get_current_Desktop()->_hwndDesktop
= g_Globals._hwndDesktop;
 #endif

+		/**TODO launching autostart programs can be moved into a
background thread. */
    	if (autostart) {
    		char* argv[] = {"", "s"};	// call startup
routine in SESSION_START mode
    		startup(2, argv);