Dshow

[fwehlin]

I have created a dialogbased application, where I in the maindialog have
create some buttons, such as Play, stop, pause, options and openfile. When
clicking the optionsfile another modal dialog is shown with some radio
buttons where I can set the options of my program. The program is going to
be a demonstrationprogram on how u can play video (mpeg) files on computer
using different techniques:

1 By using the MediaPlayer
2 By using DirectShow
3 By using DirectDraw
4 MCI controlled.

I´m done with MediaPlayer, it wasn´t hard. But now I want to be able to play
it using Direct Show. What do I need to do? What kind of interfaces do I
need to include? I´ve looked at the MFCPlay example in DirectX Media SDK,
but that is doc/view based and I don´t understand How I can implement that
in my Dialogbased application.

Any help in this matter would be greatly appreciated. Maybe som short
examples in code.

/Frederik

[marc.schroeer]

All you need is to CoCreate an instance of IGraphBuilder and use the RenderFile method to create a filtergraph to play your file. Then you obtain the IMediaControl interface by calling QueryInterface on the IGraphBuilder interface and use the Run method to start playback.

Bye,
Marc

[fwehlin]

Thanx for your reply,
I have tried that but still wont get it compile right. I include streams.h and mmsystem.h

I have follewed the steps in the DirectX Media SDK. (Play Movie from
C++ -example)
I have tried to convert it to to my MFC dialogbased app, where I´ve made a
dialog that will show the movie. I declare and initialize the interfaces in
the OnInitDialog-function. Then I´ve added the variables needed like HRESULT
hr;

What I get is lots of compilationerrors like: left of '->QueryInterface'
must point to class/struct/union


Frederik.

P.s I could send you my files and maybe you can have a look and se if you can see any obvious misstakes in my code?