windowscodecs: Use create_instance instead of ImagingFactory_CreateInstance.

dlls/windowscodecs/clsfactory.c

@@ -206,7 +206,7 @@ HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID iid, LPVOID *ppv)
     return ret;
 }
 
-HRESULT create_instance(CLSID *clsid, const IID *iid, void **ppv)
+HRESULT create_instance(const CLSID *clsid, const IID *iid, void **ppv)
 {
     int i;
 

dlls/windowscodecs/decoder.c

@@ -665,7 +665,7 @@ static HRESULT WINAPI CommonDecoderFrame_Block_GetReaderByIndex(IWICMetadataBloc
         else
         {
             if (SUCCEEDED(hr))
-                hr = ImagingFactory_CreateInstance(&IID_IWICComponentFactory, (void**)&factory);
+                hr = create_instance(&CLSID_WICImagingFactory, &IID_IWICComponentFactory, (void**)&factory);
 
             if (SUCCEEDED(hr))
             {

dlls/windowscodecs/palette.c

@@ -679,7 +679,7 @@ static HRESULT WINAPI PaletteImpl_InitializeFromBitmap(IWICPalette *palette,
     else
         rgb24_source = source;
 
-    hr = ImagingFactory_CreateInstance(&IID_IWICImagingFactory, (void **)&factory);
+    hr = create_instance(&CLSID_WICImagingFactory, &IID_IWICImagingFactory, (void **)&factory);
     if (hr != S_OK) goto fail;
 
     hr = IWICImagingFactory_CreateBitmapFromSource(factory, rgb24_source, WICBitmapCacheOnLoad, &rgb24_bitmap);

dlls/windowscodecs/wincodecs_private.h

@@ -133,7 +133,7 @@ DECLARE_INTERFACE_(IMILUnknown2,IUnknown)
 };
 #undef INTERFACE
 
-HRESULT create_instance(CLSID *clsid, const IID *iid, void **ppv) DECLSPEC_HIDDEN;
+HRESULT create_instance(const CLSID *clsid, const IID *iid, void **ppv) DECLSPEC_HIDDEN;
 
 typedef HRESULT(*class_constructor)(REFIID,void**);
 extern HRESULT FormatConverter_CreateInstance(REFIID riid, void** ppv) DECLSPEC_HIDDEN;