[mf] 14435: merge from trunk: hide login screen to make the login on XP faster

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

Modified:
branches/lean-explorer/reactos/subsys/system/explorer/explorer.cpp
--- branches/lean-explorer/reactos/subsys/system/explorer/explorer.cpp
2005-04-02 10:48:16 UTC (rev 14434)
+++ branches/lean-explorer/reactos/subsys/system/explorer/explorer.cpp
2005-04-02 10:59:49 UTC (rev 14435)
@@ -601,6 +601,19 @@

#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()");
@@ -646,11 +659,15 @@
    	}

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
@@ -674,6 +691,14 @@
    if (_tcsstr(lpCmdLine,TEXT("-noautostart")))
    	autostart = false;

+	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"));
+	}
+
+
    g_Globals.init(hInstance);

// initialize COM and OLE before creating the desktop window
@@ -684,6 +709,7 @@

g_Globals._hwndDesktop = DesktopWindow::Create();

+		/**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);