I want to apply a filter plug-in via the script-fu console, but this doesn't
seem to work. I have tried with several plug-ins, with no success. I have
tried this on GIMP 2.0.5 on RedHat Enterprise Linux and GIMP 2.4.1 on
Windows XP SP2.

Let's take a simple example. Suppose I have a .png image open in GIMP, and
it is image 4. It has only one layer. It has an excessive white border, so I
want to autocrop it.

If I go to the script-fu console and enter:


(plug-in-autocrop 1 4 0)


In 2.4.1 on WinXP I get a message "Error: Procedure execution of
plug-in-autocrop failed" and the error console displays a series of errors:


" GIMP Error
Procedure 'gimp-drawable-width' has been called with an invalid ID for
argument 'drawable'. Most likely a plug-in is trying to work on a layer that
doesn't exist any longer.

  GIMP Error
Procedure 'gimp-drawable-height' has been called with an invalid ID for
argument 'drawable'. Most likely a plug-in is trying to work on a layer that
doesn't exist any longer.

  GIMP Error
Procedure 'gimp-drawable-bpp' has been called with an invalid ID for
argument 'drawable'. Most likely a plug-in is trying to work on a layer that
doesn't exist any longer.

  GIMP Error
Plug-in crashed: "autocrop.exe"
(D:\Program Files\GIMP-2.0\lib\gimp\2.0\plug-ins\autocrop.exe)

The dying plug-in may have messed up GIMP's internal state. You may want to
save your images and restart GIMP to be on the safe side."


If I use a number other than 0 for the drawable, however (I've tried every
integer from -2 to 2) then I still get an error. (NB. on Linux the situation
is no better, but the error messages are different.)


I would be very grateful for any help you can offer.

Many thanks,
Sam Kuper
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