[fpc-pascal]Re: working with bitmaps

Rainer Hantsch rainer at hantsch.co.at
Mon Oct 20 09:53:01 CEST 2003


What I am really wondering about, is the following:

There exist a lot of ready made C-libraries for manipulating images, but there
exists nothing which uses them. Most issues I could find in the past are more
or less Windoze-related and do not even compile, not to talk about if they
would work at all.

Now I heared that there are some things available for DELPHI style
programming, but this does only work with newest FPC versions which surely
will not work on old Linux any more (i.e. SuSE 5.2), so they are in fact
useless. (I like to use very old computers to give them a second life for
minimalistic things, but this machines are too weak for fat new Linuxes...)

Also I am afraid that
a.) this new FPC classes (again) will not use this libraries but do all
    this data fiddleing together by themselves. :-/
b.) be therefore much more unstable because the self-knitted code has to
    be tested again, what is already finished with this C libraries.

I asked some time ago for a wrapper and got the laconic answer that I would
only have to do a header translation and then do this and that... :-(
Why is there nothing available which does at least the simpler things of that?

Mostly required will be those functions which reading/writing images from/to
files and putting them somewhere unpacked into memory for further
manipulation, but even this is not really available.

Would be nice to receive some information about where I could get a unit which
works with FPC 1.0.4 (this one works with SuSE 5.2, too) and is NOT in Delphi

But I am afraid that this will not happen. Shall I really change to "C"? Hope,

 On Sat, 18 Oct 2003, Jeff Pohlmeyer wrote:

| There is a large amount of Delphi-related graphics stuff
| on Earl F. Glynn's website, but I don't know if there is
| anything that can be used with with Free Pascal:
|   http://efg2.com/Lab/Library/Delphi/Graphics/ImageProcessing.htm
|   http://efg2.com/Lab/Library/ImageProcessing/index.html
|   http://efg2.com/Lab/Library/Kylix/index.html
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  Ing. Rainer Hantsch

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