C＃UWP app COM错误：80040154类未注册

Question

I have an UWP application that I would like to interface with another program (Wirecast). The approach suggested by Wirecast is to call the following code:

    Type objClassType = Type.GetTypeFromProgID("Wirecast.Application");
    _Wirecast = Activator.CreateInstance(objClassType);

When I call this code from UWP app I get the following error:

System.Runtime.InteropServices.COMException: 'Creating an instance of the COM component with CLSID {A416C15B-A073-4994-8DB5-87527A41B2FA} using CoCreateInstanceFromApp failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)).

I checked the CLSID and it appears correctly in the Registry Editor. I tried compiling for x64 and x86 configurations with the same results.

When I try compiling this example in WPF project it works as expected .

Is there any way to use this COM object with an UWP app?

Answer 1

Unfortunately this won't work as UWP runs in a sandbox and it cannot communicate with COM. If you want such functionality, you would have to create a local service via which would your UWP app communicate with the program or a Brokered Windows Runtime Component which has no limitations but will prevent your app from being published to Microsoft Store.