I guess you're using GTK2 widget set?
Please try latest SVN version now, I uploaded some fixes.

I uploaded a fix for infinite delays. Please test it.
AddMetaItemForSave for PNG only works for print resolution metadatas, not animations yet.
Hopefully I'll get to it ina few days.

I'v updated SVN reposiotory with these new GIF saving features.
Set metadata before saving the GIF like this:


// set loops for the whole animation
GlobalMetadata.AddMetaItemForSave(SMetaAnimationLoops, 3);

// delay for each frame in ms
GlobalMetadata.AddMetaItemForSave(SMetaFrameDelay, 300, ImageIndex);


This can be done with new metadata support in the latest versions in SVN
but I haven't uploaded GIF support yet (only APNG stores delays now).
I'll test it and upload it in a few days.

To create GIF with multiple images inside just use TMultiImage instead of TSingleImage in your code.
Just note that GIF can store only 256 colors for one image, so your screenshots
may look quite ugly when saved to GIF. Other multi image formats supported by Imaging that also support 24/32bit colors are MNG and APNG.

Hi,
if you have pixels already in memory there's no need to use LoadImageFromMemory - that's for loading images stored
in one of supported file formats (JPG, PNG, etc.).
Just copy part of memory with pixels, see this thread http://galfar.vevb.net/imaging/smf/index.php/topic,281.0.html

Unfortunately no data formats with 5+ channels are supported in Imaging 0.xx
What file format are you interested in?

Ok, TIFF 1bpp support is done and uploaded to SVN.

1bpp support was just added to PNG file format handler and  TIFF support is next in the line.

1bpp image data format support (convert to/from other formats) is already in the version that's in SVN repository. I don't know when I'll have time to extending it with TIFF 1bpp saving, although it's quite easy.

Hi, support for 1bit images was added to Imaging core only recently and file format handlers were not updated yet. Wait a while please.
Are you interested in any of the 1bpp compression schemes supported by TIFF?

I'm not really sure what are you trying to measure, maybe some illustrations could help?

Thanks for the tip for avoiding internal error.
Have you reported it to FPC bug tracker?

Report internal compiler error to FPC bug tracker please, there's not much I can do about this.
Or could you try some other FPC versions too?

Hi, old SGI and Dr. Halo could be added quite easily (but are they still used somewhere??).
PSP image support would be nice (I still use older version of PSP) but it would be similar to PSD support: only subset of features could be supported - it's quite complex.
JPEG XR is based on MS's HDPhoto which I had planned to add for years - this wouldn't be native Pascal, but obj/a files linked to the application (similar to how JPEG2000 is handled now). But there are probably some changes in file format between HDPhoto and JPEG XR, so I guess I'll have to wait for some library that supports it.