Re: [Gimp-user] how / when to use gimp-image-delete

On 09/19/12 04:19, paynekj wrote:
According to the procedure browser,
the third parameter to pass to the plug-in-unsharp-mask should be the drawable id,
but you are passing the image id.
It's only working in your first stage because, by luck,
the image id and the drawable id have the same value.

You need to get a drawable id - usually by calling gimp-image-get-active-layer

Thanks; (also for the pointer on variable number of args)

When I do gimp-image-get-active-layer, I get something, not a number, back;
and that something is not directly usable in a call to plug-in-unsharp-mask.
After much hair tearing, I discovered you have to take the car of it.

What's the best way to determine / print out what a thing is?
  This is where the old form, "print" seems to be more useful than "display"
  as it seems to print out whatever the arg is; it doesn't have to be 
  converted to string, which is tough if you don't know what it is to begin with.
  Is there a "more correct" way?



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