Comment Feed for How Win32 app calls WPF dll (TechOff on Channel 9)

Re: Re: Re: Re: How Win32 app calls WPF dll

Carmelo — Tue, 02 Dec 2008 16:43:00 GMT

Hi Vesuvius (are you Italian? :D)
I'm trying to create a Win32 Application and I'd like to create also a WPF dll separately.
So whenever I call my dll from my Win32 app it will do something.
I imported the dll file in my Win32 project with all the referencies but I'm not able to call the dll and show it in a window.
I hope I'm fulfilling,
Thanks a lot,
Carmelo.

Re: Re: Re: How Win32 app calls WPF dll

vesuvius — Mon, 01 Dec 2008 18:47:23 GMT

Why are you trying to do this? Surely if you are writing something from scratch you may as well use the 1 tech, as your application is easier to maintain that way.

If I was upgrading a Winforms application, then I'd look at interop. Is this mostly a win32 app or a WPF one?

Re: Re: How Win32 app calls WPF dll

Carmelo — Mon, 01 Dec 2008 15:58:18 GMT

Hi everybody and thanks for the replies,
maybe I haven't been too clear...
I've already read about "WPF and Win32 Interoperation Overview" and I've tried the "Win32 Clock Interoperation Sample".
So I created my WPF dll and I put it in my Win32 app.
Now I have to write the code in my Win32 app in order to call/run my dll added, but I'm not able to do it... :(

Re: How Win32 app calls WPF dll

Scott — Mon, 01 Dec 2008 15:12:59 GMT

http://msdn.microsoft.com/en-us/library/ms742522.aspx

Re: How Win32 app calls WPF dll

John — Mon, 01 Dec 2008 15:04:28 GMT

Carmelo, a WPF application compiles to a .exe which can be executed alone.

If you have produced a DLL, tyhen it seems that you have created a WPF Control, which fo simplicity's sake, should be used in a WPF project (you need to reference it)

If you need to use it in Winforms, then you need to look up WPF / Winforms Interop. (Again, you need to add a reference to the dll you created, copying it in is not sufficient)

If it is a Win32 MFC app, then I don't think WPF will interop with that, but I could be wrong.

Re: How Win32 app calls WPF dll

William Kempf — Mon, 01 Dec 2008 15:02:23 GMT

It wasn't all that clear. An "application" is an EXE, not a DLL. If you really did create a WPF application, just use one of the many "spawn" APIs to start the WPF application (CreateProcess, spawn, ShellStart, etc.). If, however, you've created a WPF user control or something similar, and what to display that from a Win32 application, you'll need to use interop APIs. http://msdn.microsoft.com/en-us/library/ms742522.aspx