windowscodecs: Implement PixelFormatInfo_GetSpecVersion.

dlls/windowscodecs/info.c

@@ -1238,8 +1238,12 @@ static HRESULT WINAPI PixelFormatInfo_GetVersion(IWICPixelFormatInfo2 *iface, UI
 static HRESULT WINAPI PixelFormatInfo_GetSpecVersion(IWICPixelFormatInfo2 *iface, UINT cchSpecVersion,
     WCHAR *wzSpecVersion, UINT *pcchActual)
 {
-    FIXME("(%p,%u,%p,%p): stub\n", iface, cchSpecVersion, wzSpecVersion, pcchActual);
-    return E_NOTIMPL;
+    PixelFormatInfo *This = impl_from_IWICPixelFormatInfo2(iface);
+
+    TRACE("(%p,%u,%p,%p)\n", iface, cchSpecVersion, wzSpecVersion, pcchActual);
+
+    return ComponentInfo_GetStringValue(This->classkey, specversion_valuename,
+        cchSpecVersion, wzSpecVersion, pcchActual);
 }
 
 static HRESULT WINAPI PixelFormatInfo_GetFriendlyName(IWICPixelFormatInfo2 *iface, UINT cchFriendlyName,

dlls/windowscodecs/tests/info.c

@@ -209,8 +209,8 @@ static void test_pixelformat_info(void)
 
     len = 0xdeadbeef;
     hr = IWICComponentInfo_GetSpecVersion(info, 0, NULL, &len);
-    todo_wine ok(hr == S_OK, "GetSpecVersion failed, hr=%x\n", hr);
-    todo_wine ok(len == 0, "invalid length 0x%x\n", len); /* spec version does not apply to pixel formats */
+    ok(hr == S_OK, "GetSpecVersion failed, hr=%x\n", hr);
+    ok(len == 0, "invalid length 0x%x\n", len); /* spec version does not apply to pixel formats */
 
     memset(&guid, 0xaa, sizeof(guid));
     hr = IWICComponentInfo_GetVendorGUID(info, &guid);