Add wrapper for wxImage::GetHandlers

wxImage::GetHandlers() is a convenient function if you want to
enumerate supported image formats (in my case, for image exporting).

Unlike all the other times I've asked for something to be wrapper,
though, I've actually figured out how to do this in SWIG (of course,
it turned out to be easy...) and I can provide a patch!

Since its only a few lines, and SF is down for me right now (and
working the patch interface is annoying anyway), I hope it's okay if I
post it here.

_image.i.patch (689 Bytes)

Chris Mellon wrote:

wxImage::GetHandlers() is a convenient function if you want to
enumerate supported image formats (in my case, for image exporting).

Unlike all the other times I've asked for something to be wrapper,
though, I've actually figured out how to do this in SWIG (of course,
it turned out to be easy...) and I can provide a patch!

Since its only a few lines, and SF is down for me right now (and
working the patch interface is annoying anyway), I hope it's okay if I
post it here.

Thanks. I'll add this to both branches.

ยทยทยท

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Robin Dunn
Software Craftsman
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