export DDGetProcAddress so fan patched games have access to the real GetProcAddress

exports.def

@@ -21,3 +21,4 @@ EXPORTS
     GameHandlesClose                          DATA
     pvBmpBits = FakePrimarySurface            DATA
     DDIsWindowed
+    DDGetProcAddress

src/dllmain.c

@@ -147,6 +147,11 @@ BOOL DDIsWindowed()
     return g_config.windowed && !g_config.fullscreen;
 }
 
+FARPROC WINAPI DDGetProcAddress(HMODULE hModule, LPCSTR lpProcName)
+{
+    return real_GetProcAddress(hModule, lpProcName);
+}
+
 HRESULT WINAPI DirectDrawCreate(GUID FAR* lpGUID, LPDIRECTDRAW FAR* lplpDD, IUnknown FAR* pUnkOuter)
 {
     TRACE("-> %s(lpGUID=%p, lplpDD=%p, pUnkOuter=%p)\n", __FUNCTION__, lpGUID, lplpDD, pUnkOuter);