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Host Custom UWP Controls in MFC MDI Project using XAML Islands

freistli's avatar
freistli
Icon for Microsoft rankMicrosoft
Jan 25, 2020
Host Custom UWP Controls in MFC MDI Project using XAML Islands This article explains how to modernize MFC MDI project with custom UWP Controls through XAML Islands. With custom UWP controls, it all...
Updated Nov 22, 2022
Version 14.0
C++
Microsoft Foundation Class (MFC)
MSIX
Windows UI (WinUI)
XAML
DaveColter's avatar
DaveColter
Copper Contributor
Sep 20, 2021

Step 15 of the Configure UWP Project section: "If you build MyApp now, it should create MyApp.dll without any error."

 

It doesn't. It reports the following error:

D:\<Projects Path>\MyApp\App.idl(9): error MIDL2011: [msg]unresolved type declaration [context]: Microsoft.Toolkit.Win32.UI.XamlHost.XamlApplication [ RuntimeClass 'MyApp.App' ]