Hi,
I am engaged in porting the xsane GIMP plugin code to the new GIMP 3 API. So far it has been a bit of a struggle since the doc is still pretty sparse. So I am looking for some hints.

xsane doesn't have a very complex relationship with GIMP, so I don't believe that there is much left to do. However, I do have some specific questions that I hope I can get some help with.

What I have so far is the infrastructure and new boilerplate to register the menu items. All of that works fine. 

Now I am looking at image creation.

I have the following sequence to get a new image with an attached layer:

gimp_image_new()
gimp_layer_new()
gimp_image_insert_layer()

Now, in order to get a buffer onto which to draw the scanned image, the GIMP 2 code used:

buffer = gimp_drawable_get_buffer(layer_ID);

However, this function does not take a layer in GIMP 3. It takes a GimpDrawable. What do I need to do to draw to a layer or is there a different method not recommended? There doesn't seem to be a function to get a drawable from a layer.

Cheers, and thanks in advance.
skelband

Hi,

I'd appreciate some help with the migration of one of my Python-based Gimp 2.10 plugins to Gimp 3. I've already managed to write two unrelated plugins that do some import/export shenanigans so I am able to add new plugin, debug it somewhat etc.

However, I have three issues:
1) It seems that not all Procedure::add_xy_argument work or at least they don't behave as intended. My understanding is that calling:

3) I didn't find a way to disable a bunch of default buttons that render for each plugin, namely these:

   

Bonsoir,

La question est dans le titre (je n'ai pas pu faire plus court...) : dans Fichier>Ouvrir, est-il possible d'avoir des grandes étiquettes images ? Car apparemment, par défaut, on a à gauche la liste des photos et pour les visualiser à droite il faut cliquer dessus une par une :

   

Y-a-t-il moyen d'avoir directement une sorte de "planche contact" de toutes les photos du dossier ?

Merci d'avance !

PS : lorsque j'édite ce post, l'orthographe devient aléatoire, désolé...

Arrowdesigner for gimp 3:
https://github.com/akkana/gimp-plugins/b...esigner.py

Did't show up in my gimp3 menu,(see posts below) so this is the right one : Arrow_V3.scm

   

  arrow_V3.zip (Size: 8.85 KB / Downloads: 259)

New Appimage: https://github.com/ivan-hc/GIMP-appimage...inuous-git

For a quick film emulation on a photo : https://29a.ch/film-emulator/
   

... or a new feature!
I have the latest 3.0.4 vs of gimp. What happened to the scroll bars, horizontal? They were there in the other vs 3's. I haven't had to do anything to make them appear usually. Do I have to this time?
I also do not have the status menu bar at the bottom - where I can change the view size etc. Even the layers icons in the dialog are missing - could be my whole bottom is missing. I cannot check now.

EDIT:
oops, now I have no menu bars at all. I did click on merge menu bars earlier. Only way I can shut gimp down is do it from the icon that shows up in my task bar. If that is the case how can I undo it as I cannot get to edit > preferences now.
Closed everything down and reopened and its all there now

A gimp2 plugin for frequency separation. See link for examples and how to use the plugin :

https://www.chuckhenrich.com/gimp-freque...version-3/

A gimp 3 plugin to lighten or darken certain parts of photos

https://www.chuckhenrich.com/gimp-dodge-...-flexible/

A quick try (on the right the original) :

   

I've just started using GIMP (2.10.14) after using an old copy of Photoshop for years (decades). So, my general knowledge of image editing is OK, but my knowledge of GIMP - zero.

So, very dumb question, want to scale the pixels/inch of an image. I've got a scanned image (B/W, TIF) that is very long and thin - one of those old school pictures taken with a panning camera. It was scanned and stitched together at 1600ppi, which is really way too big for my needs. So, want to down convert it to 600ppi. Should be simple ... .

So, started GIMP, dragged the image in, and it loads OK. Go to scale image and it shows the image as roughly 58000x8000 pixels at 1600ppi X and Y. X and Y are linked, so change X to 600ppi, and, yes, Y changes to 600ppi. , Click scale, so far so good.

Export as TIF, writes OK. But, load it up again, and it still says 58000x8000, 1600ppi. Same size file, too.

So, tried again, but this time just saved it as its native format, and reloaded it. This time it said 600ppi - good, but still listed the overall resolution as 58000x8000 - which it clearly wasn't or there would have been a lot of blank space.

Confused, should be very simple, what am I doing wrong?