add csrike source code

game/client/cstrike/vgui_rootpanel_cs.cpp

@@ -0,0 +1,41 @@
+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: 
+//
+// $NoKeywords: $
+//=============================================================================//
+#include "cbase.h"
+#include "vgui_int.h"
+#include "ienginevgui.h"
+#include "c_csrootpanel.h"
+
+// memdbgon must be the last include file in a .cpp file!!!
+#include "tier0/memdbgon.h"
+
+C_CSRootPanel *g_pCSRootPanel = NULL;
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void VGUI_CreateClientDLLRootPanel( void )
+{
+	g_pCSRootPanel = new C_CSRootPanel( enginevgui->GetPanel( PANEL_CLIENTDLL ) );
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: 
+//-----------------------------------------------------------------------------
+void VGUI_DestroyClientDLLRootPanel( void )
+{
+	delete g_pCSRootPanel;
+	g_pCSRootPanel = NULL;
+}
+
+//-----------------------------------------------------------------------------
+// Purpose: Game specific root panel
+// Output : vgui::Panel
+//-----------------------------------------------------------------------------
+vgui::VPANEL VGui_GetClientDLLRootPanel( void )
+{
+	return g_pCSRootPanel->GetVPanel();
+}