Re: WMP control resizing

Jim, thanks for your reply.

Let me clarify further. I understand how things work re: MFC, ActiveX
control wrapping etc. I'm using VC6. I don't have any problems whatsoever in
getting the WMP9 activex control in a window and playing movies etc. You said:

> Now to the point: when you want to resize the control (any control) in MFC,
> you really want to resize the container window. The container window (CWnd
> class) is provided by MFC,

Can I ask, have you actually tried this? Resizing the CWnd does not resize
the activex control. You can move the window with no problems, but the
control absolutely will not resize.

Here's an example. I attach a CWnd to a standard HWND and can manipulate it
absolutely perfectly - resizing, moving etc. I then use the CMediaPlayer4
class to dynamically create (CMediaPlayer4::Create()) itself with the CWnd as
the parent window. No problem here.

I build and run the code, and I can drag the window to a new location. I can
also set the window position programmatically (SetWindowPos etc).

However when I try to resize the window, the CWnd resizes but the activex
control does not. The same occurs when trying to use SetWindowPos etc to
resize the window.

No matter what I do, I cannot get the activex control to resize itself as
the parent window is resized. It's very easy to reproduce this problem:

1. Make app (dialog, view, anything you like)
2. Add WMP9 activex control and generate CMediaPlayer4
3a. If necessary, attach a CWnd to the HWND of the window.
3b. In code, call CMediaPlayer4::Create() to create the control.
4. Try to resize the window either in code or at runtime through the UI

Everything I have found (including a post from yourself from 2003) indicates
that the only way to get the control (/movie) to resize itself at runtime is
via a skin.

If I'm wrong and there is a way, great - I'd be happy to use that. My
question would then be - "how do I do this".

If I'm right, I'll have to use skins. My question would then be - "How do I
access/connect to/use the WMP9 skins interface from an MFC app that currently
has a CMediaPlayer class"?

I have everything else working. All I need to do is to resize the control at
runtime (or rather, allow the user to resize it). Thanks for your help.



"Jim Travis [ms]" wrote:

> I'll try to help.
>
> First, you don't state which version of Visual Studio you're using, so I can
> really only speak generically. The way things work in VS, MFC, ATL, and so
> forth can change in meaningful ways from version to version.
>
> In general, the WMP control is an ActiveX control, and MFC supports hosting
> ActiveX controls, as does ATL, or IE, or VB...you get the idea. Each of
> these technologies has its own way of exposing the hosting of these
> controls. While the Player SDK tries to provide useful information about how
> to get started in each of these areas, it is beyond the scope of the Player
> SDK to provide all the possible information one might want to know about how
> to host the control in each technology. It is even less possible to track
> all the changes that happen in these areas from version to version; one must
> look to the technology-specific documentation for that information.
>
> This means, as a practical matter, the Player SDK mostly has to stay focused
> on Player-specific information. To do that, we provide some sample code, and
> we've chosen ATL as the preferred technology to use for that purpose for C++
> programmers, because it provides the most concise coding paradigm and it is
> particularly well suited to working with ActiveX/COM. But you shouldn't look
> to the Player SDK documentation to educate you about ATL, MFC (or any other
> programming framework), or ActiveX controls in general.
>
> Now to the point: when you want to resize the control (any control) in MFC,
> you really want to resize the container window. The container window (CWnd
> class) is provided by MFC, not the Player SDK. In Visual Studio .NET 2003, I
> find that I can simply call CWnd::MoveWindow(0,0,100,100) through my
> reference to CWMPPlayer4 (because the wrapper derives from CWnd) and the
> control's UI moves and resizes. I also find that I need to call
> this->RedrawWindow() to get the dialog to repaint properly.
>
> Hope that helps.
>
> --
> Jim Travis
> Microsoft Corp.
> Windows Media Player SDK
>
> Download:
> http://msdn.microsoft.com/library/default.asp?url=/downloads/list/winmedia.asp
>
> Latest online:
> http://msdn.microsoft.com/library/en-us/wmplay10/mmp_sdk/windowsmediaplayer10sdk.asp
>
> Please do not send email directly to this alias as this alias is for
> newsgroup purposes only. This posting is provided "AS IS" with no
> warranties, and confers no rights. You assume all risk for your use. © 2005
> Microsoft Corporation. All rights reserved.
>
> "D-Code-99" <DCode99@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
> news:C7A60AF1-9B10-450E-9A78-709A7046E9D9@xxxxxxxxxxxxxxxx
> > Hi,
> >
> > I've successfully got the WMP9 activex control created dynamically and
> > attached to a generic window at runtime. For various reasons I'm using MFC
> > and CWMPPlayer4 wrapper. Playback etc etc all works correctly.
> >
> > However it seems it's not possible to resize the control at runtime
> > through
> > the standard interface. Apparently the only way to do it is via skins.
> > I've
> > been looking into this for hours now, and the only information I can find
> > is
> > cryptic statements from some guy at MS in 2003.
> >
> > I can't understand how to implement WMP9 skins in an MFC app. I've looked
> > at
> > the RemoteSkin sample - it's ATL, not MFC and it's of no help at all.
> > Really
> > I don't even want to implement skins, I just want to be able to resize the
> > control (and therefore the video output) at run-time. This seems like such
> > a
> > simple, basic requirement...
> >
> > Can anyone help before I go nuts? The WMP SDK documentation is awful.
> >
> > Thanks!
>
>
>
.

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