msi: Handle remote calls to MsiGetLanguage.

dlls/msi/install.c

@@ -1045,7 +1045,22 @@ LANGID WINAPI MsiGetLanguage(MSIHANDLE hInstall)
     
     package = msihandle2msiinfo(hInstall, MSIHANDLETYPE_PACKAGE);
     if (!package)
-        return ERROR_INVALID_HANDLE;
+    {
+        HRESULT hr;
+        LANGID lang;
+        IWineMsiRemotePackage *remote_package;
+
+        remote_package = (IWineMsiRemotePackage *)msi_get_remote(hInstall);
+        if (!remote_package)
+            return ERROR_INVALID_HANDLE;
+
+        hr = IWineMsiRemotePackage_GetLanguage(remote_package, &lang);
+
+        if (SUCCEEDED(hr))
+            return lang;
+
+        return 0;
+    }
 
     langid = msi_get_property_int( package, szProductLanguage, 0 );
     msiobj_release( &package->hdr );

dlls/msi/msiserver.idl

@@ -28,6 +28,7 @@ typedef unsigned long MSIHANDLE;
 typedef int INSTALLMESSAGE;
 typedef int MSIRUNMODE;
 typedef int INSTALLSTATE;
+typedef WORD LANGID;
 cpp_quote("#endif")
 
 [
@@ -52,6 +53,7 @@ interface IWineMsiRemotePackage : IUnknown
     HRESULT SetFeatureState( [in] BSTR *feature, [in] INSTALLSTATE state );
     HRESULT GetComponentState( [in] BSTR *component, [out] INSTALLSTATE *installed, [out] INSTALLSTATE *action );
     HRESULT SetComponentState( [in] BSTR *component, [in] INSTALLSTATE state );
+    HRESULT GetLanguage( [out] LANGID *language );
 }
 
 [

dlls/msi/package.c

@@ -1648,6 +1648,13 @@ HRESULT WINAPI mrp_SetComponentState( IWineMsiRemotePackage *iface, BSTR *compon
     return HRESULT_FROM_WIN32(r);
 }
 
+HRESULT WINAPI mrp_GetLanguage( IWineMsiRemotePackage *iface, LANGID *language )
+{
+    msi_remote_package_impl* This = mrp_from_IWineMsiRemotePackage( iface );
+    *language = MsiGetLanguage(This->package);
+    return S_OK;
+}
+
 static const IWineMsiRemotePackageVtbl msi_remote_package_vtbl =
 {
     mrp_QueryInterface,
@@ -1668,6 +1675,7 @@ static const IWineMsiRemotePackageVtbl msi_remote_package_vtbl =
     mrp_SetFeatureState,
     mrp_GetComponentState,
     mrp_SetComponentState,
+    mrp_GetLanguage,
 };
 
 HRESULT create_msi_remote_package( IUnknown *pOuter, LPVOID *ppObj )