Thanks Scott for the feedback.
>This has not been documented AFAIK and I didn't write this code and
>don't really understand it, but I'll try to answer based on a quick
>review of it. Backward compability testing has been very limited
>(you're actually lucky that it works at all because we seriously
>considered dropping support for VfW entirely), so your best bet is to
>actually try them and find out. Either that or spend your time
>developing a persuasive argument that your customers' refusal to
>install QT is a mistake ;-)
I'm VERY keen to standardise on QuickTime, but some corporate IT
mentalities are completely unpersuadable on this issue (..."what,
it's not from Microsoft, no way!").
>Also note that you actually have better control over things using the
>mciSendString function, though it can be difficult to figure out what
>the proper syntax is. Unfortunately I'm not aware of any good
>documentation on the MCI layer, neither from Microsoft nor from any of
>the vendors of the other products that rely heavily on it (like
>ToolBook).
Sounds like I'll need the witchdoctor and some carefully constructed
spells - I think I'll steer clear of mciSendString for now!
> > - player objects
> > - player object properties:
> > - fileName
> > - currentTime
> > - playRate
> > - duration
> > - formattedWidth, formattedHeight
> > - paused
> > - player object messages?
>
>Yes.
OK, looks usable - I'll have to try this out.
> > - showController
> > - alwaysBuffer
> > - startTime, endTime
> > - showSelection
> > - playSelection
> > - callbacks
> > - timescale
>
>No. VfW doesn't have equivalents for these.
If 'timescale' isn't supported, what units is 'duration' in?
>
> > If player objects can't be used with Video for Windows, how much
> > equivalent functionality is supported using the older style "play
> > videoClip" command?
>
>The "play vc" command should work like it used to. But note that all
>it does is create a temporary player object, start it, and then delete
>it when the playStopped message is sent.
OK, back to 'player objects' then.
> > For example, is it possible to display a
> > controller which the user can interact with to play, pause, stop,
> > rewind, step forward/backward? Also, can I tell the dimensions of a
> > video clip for on-screen sizing, or where and when a clip has been
> > paused by the user?
>
>The user can't pause the clip, but you can do this from a script. You
>can get the dimensions of a movie, and it should play into a player
>the proper size if you set the lockLocation property of the player,
>but VfW doesn't support a visible controller, so you'd have to build
>your own if you need one.
So I can create my own controller with pause, stop and start and use
the 'formattedWidth' and 'formattedHeight' together with 'scale' to
control the size of the playback frame. Can I set the 'currentTime'
to effect a forward/reverse effect?
Thanks again.
Peter
--------------------------------------------------------
Peter Reid
Reid-IT Limited, Loughborough, Leics., UK
Tel: +44 (0)1509 268843 Fax: +44 (0)870 052 7576
E-mail: [EMAIL PROTECTED]
Web: http://www.reidit.co.uk
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