----- Original Message -----
From: "Kevin Myers" <[EMAIL PROTECTED]>
To: "gimp users" <[EMAIL PROTECTED]>
Sent: Monday, October 14, 2002 10:23 AM
Subject: [Gimp-user] Threshold Crop Plug-in

> Hello,
> I would like to develop (or preferably locate) a tool somewhat similar to
> the default gimp autocrop, but with this difference:  It would allow you
> specify a threshold range in some manner for the border that is to be
> cropped.  If it handles RGB that would be fine, but in my case all that I
> really care about is grayscale.
> I've searched the gimp registry and didn't see anything similar, so I'm
> considering writing one of my own by using the existing autocrop plug-in
> a starting point.  I've done some preliminary looking at the code and have
> written pseudo-code for the primary changes that would be needed.
> I can't seem to locate any docs on what you actually need in order to
> compile a plug-in...
> In autocrop libgimp is the only external library that is used, and I don't
> think that I need anything else either, at least for a simple initial
> version with hardcoded threshold values and no user interface.
> I would think that I can easily locate and download the header file(s) for
> libgimp.  But I'm an inexperienced C developer, and don't know what else
> anything that I may need.  I will be mucking with tiff files, but since
> itself will be doing all of the actual file interaction, I don't think
> I should need libtiff or anything like that, right?  Also, I don't need
> libgimp source other than the header files, do I?
> Finally, I will be doing my work under Windows.  I have several compilers
> available, including a couple of versions of Microsoft Visual C++.  I
> want my plug-in to be dependent on Cygwin libraries or anything like that,
> so I don't plan to use Cygwin for this development.  By default (because I
> don't know any better) I was planning to MSVC++ 6.0 to write and compile
> plug-in.  Will this work?  Are there any other tools that I am likely to
> need in order to develop this extremely simple plug-in?
> After compiling, I believe that all I should need to do to run the plug-in
> is to locate it in the proper gimp subdirectory on my machine, right?
> Thanks in advance for any tips.
> Kevin M.
> Round Rock, Texas
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