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common/SteamAppStartup.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: used by all .exe's that run under steam and out, 
+//			so they can be launched indirectly by steam and launch steam themselves
+//
+//=============================================================================//
+
+#ifndef STEAMAPPSTARTUP_H
+#define STEAMAPPSTARTUP_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+//-----------------------------------------------------------------------------
+// Purpose: Call this first thing at startup
+//			Works out if the app is a steam app that is being ran outside of steam,
+//			and if so, launches steam and tells it to run us as a steam app
+//
+//			if it returns true, then exit
+//			if it ruturns false, then continue with normal startup
+//-----------------------------------------------------------------------------
+bool ShouldLaunchAppViaSteam(const char *cmdLine, const char *steamFilesystemDllName, const char *stdioFilesystemDllName);
+
+
+#endif // STEAMAPPSTARTUP_H