[vlc-devel] Re: Writing VLC interface plug-in
sigmunau at stud.ntnu.no
Sun Feb 8 00:49:09 CET 2004
This module it allways running.
On Sat, Feb 07, 2004 at 06:20:43PM -0500, Sooyoung Sung wrote:
> Thanks for the kind responses.
> For a starter, I'm looking into hotkeys.c in ./modules/control/. It would
> be helpful to see this module actually running at the same time I look at
> the code, but I'm not sure how to make it run. Any advice? Thanks.
> --On Saturday, February 07, 2004 10:14 AM +0100 Olivier Teulière
> <ipkiss at via.ecp.fr> wrote:
> >On Sat, Feb 07, 2004, Sooyoung wrote:
> >>I'm trying to write a simple GUI interface plug-in (for practice. I'll
> >>try write a more complicated one later), but the "VideoLAN Client API
> >>Documentation" on the web does not provide much information.
> >>Specifically, 'section 2.7 How to write an interface plugin' is only a
> >>half-page long and I cannot find 'plugins' directory at all. Could
> >>anyone provide some general instructions? I've just downloaded and
> >>compiled "VLC source code tarball (0.7.0)" on Cygwin under Windows
> >You are right, the developer documentation is quite outdated on many
> >aspects. Until now, noody as volunteered to write a new one :)
> >First of all, the existing GUI modules can be found in ./modules/gui/*.
> >The ones that work on windows are 'wxwindows', 'skins' and 'skins2'
> >(perhaps also 'gtk', but it's not maintained anymore)
> >An interface module (graphical or not) is made of 3 entry functions and
> >a module description:
> > * The module description, made of macros, declares the capabilities
> > of the module (interface, in this case) with their priority, the
> > module description as it will appear in the preferences of GUI
> > modules that implement them, some configuration variables specific
> > to the module, shortcuts, sub-modules, etc.
> > * The 'Open' function is called by VLC to initialize the module The
> > * 'Run' function really does the job of the interface module
> > (waiting for user input and displaying info)
> > * The 'Close' function is called by VLC to uninitialize the module
> > (basically, this consists in destroying whatever have been
> > allocated by 'Open')
> >These 3 functions take a vlc_object_t* as argument (which may need to be
> >cast into a intf_thread_t* depending on your needs). This structure is
> >often needed as a parameter for exported VLC functions, such as msg_Err,
> >msg_Warn, ...
> >See examples of use in existing modules. The GUI ones are not very easy
> >to understand, since they are quite big. I suggest to start digging into
> >a non-graphical interface module first (they can be found in
> >./modules/control/*), mainly the 'hotkeys' one.
> >Do not hesitate to ask further questions on this mailing-list, or on
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