gameux: Add UninstallGame implementation.

dlls/gameux/gameexplorer.c

@@ -991,9 +991,23 @@ static HRESULT WINAPI GameExplorer2Impl_UninstallGame(
         IGameExplorer2 *iface,
         LPCWSTR binaryGDFPath)
 {
+    HRESULT hr;
+    GUID instanceId;
     GameExplorerImpl *This = impl_from_IGameExplorer2(iface);
-    FIXME("stub (%p, %s)\n", This, debugstr_w(binaryGDFPath));
-    return E_NOTIMPL;
+    TRACE("(%p, %s)\n", This, debugstr_w(binaryGDFPath));
+
+    if(!binaryGDFPath)
+        return E_INVALIDARG;
+
+    hr = GAMEUX_FindGameInstanceId(binaryGDFPath, GIS_CURRENT_USER, &instanceId);
+
+    if(hr == S_FALSE)
+        hr = GAMEUX_FindGameInstanceId(binaryGDFPath, GIS_ALL_USERS, &instanceId);
+
+    if(hr == S_OK)
+        hr = GAMEUX_RemoveRegistryRecord(&instanceId);
+
+    return hr;
 }
 
 static const struct IGameExplorer2Vtbl GameExplorer2ImplVtbl =

dlls/gameux/tests/gameexplorer.c

@@ -646,10 +646,10 @@ void test_install_uninstall_game(void)
             _validateGameRegistryKey(__LINE__, GIS_CURRENT_USER, &guid, &applicationId, sExePath, sExeName, TRUE);
 
             hr = IGameExplorer2_UninstallGame(ge2, sExeName);
-            todo_wine ok(SUCCEEDED(hr), "IGameExplorer2::UninstallGame failed (error 0x%08x)\n", hr);
+            ok(SUCCEEDED(hr), "IGameExplorer2::UninstallGame failed (error 0x%08x)\n", hr);
         }
 
-        todo_wine _validateGameRegistryKey(__LINE__, GIS_CURRENT_USER, &guid, &applicationId, sExePath, sExeName, FALSE);
+        _validateGameRegistryKey(__LINE__, GIS_CURRENT_USER, &guid, &applicationId, sExePath, sExeName, FALSE);
 
         IGameExplorer2_Release(ge2);
     }