null midi device

[Chris]

i'd like to contribute to the wine codebase and for some applications of
mine they request i have a midi device, but since i don't have one in
linux, wine doesn't show one either. i'd like to create a null midi
device in wine then, sort of like an optional midi device that appears
to the application to be a midi device and works fine but doesn't play
any music (so the application will at least run).

does anything like this already exist in wine, if not, how hard would
any of you experienced wine developers think it would be to create this?
where should i start?

thanks for any help you can offer.

[Shachar Shemesh]

Are you sure it wouldn't make more sense to implement a NULL midi device 
in Linux?

Shachar

Chris wrote:
> i'd like to contribute to the wine codebase and for some applications of
> mine they request i have a midi device, but since i don't have one in
> linux, wine doesn't show one either. i'd like to create a null midi
> device in wine then, sort of like an optional midi device that appears
> to the application to be a midi device and works fine but doesn't play
> any music (so the application will at least run).
>
> does anything like this already exist in wine, if not, how hard would
> any of you experienced wine developers think it would be to create this?
> where should i start?
>
> thanks for any help you can offer.

[Eric Pouech]

Chris a écrit :
> i'd like to contribute to the wine codebase and for some applications of
> mine they request i have a midi device, but since i don't have one in
> linux, wine doesn't show one either. i'd like to create a null midi
> device in wine then, sort of like an optional midi device that appears
> to the application to be a midi device and works fine but doesn't play
> any music (so the application will at least run).
>
> does anything like this already exist in wine, if not, how hard would
> any of you experienced wine developers think it would be to create this?
> where should i start?

that wouldn't be too difficult to write one. grab an existing one, 
remove all the code, just keep the return values from the different
functions
However, tricky parts can come from:
- position. it's required that the device tells which position it's
currently
  being played, and you need to keep track of it
- also, you need to know when the device shall be loaded. it won't be
  loaded on every machine.

A+