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Images are displayed differently under Win7 resp. WinXP


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I found out that images are displayed differently, depending on your operating system.

Since I am a software developer, I tried it out myself and wrote a little .NET program, showing the same weird behavior as Paint.NET.

Screenshots and source code are available at ftp://thomas-leopold.dyndns.org/TIFFTest

Use active FTP mode.

You can find the original image file (a TIFF) and the source code in the zip file. Try it out...

I also opened a thread on MSDN: http://social.msdn.microsoft.com/Forums/en-US/netfxbcl/thread/1babf22d-1c00-4c15-bbb5-63065809affe/

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Win7's version of GDI+ uses WIC under the hood. In XP and Vista, it does not. They are simply different implementations.

TIFF support in Paint.NET is minimal-faith-effort, btw, and provided only because it is about 1-2 lines of code. If TIFFs don't work well, then there are unlikely to be any fixes. Please use PNG instead.

Also, please put the screenshots in a normal place like on an http:// link. I'm not digging out an FTP client just so I can configure it for "active" whatever, and wrestle with FTP craziness just to download screenshots.

The Paint.NET Blog: https://blog.getpaint.net/

Donations are always appreciated! https://www.getpaint.net/donate.html

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Win7's version of GDI+ uses WIC under the hood. In XP and Vista, it does not. They are simply different implementations.

TIFF support in Paint.NET is minimal-faith-effort, btw, and provided only because it is about 1-2 lines of code. If TIFFs don't work well, then there are unlikely to be any fixes. Please use PNG instead.

Also, please put the screenshots in a normal place like on an http:// link. I'm not digging out an FTP client just so I can configure it for "active" whatever, and wrestle with FTP craziness just to download screenshots.

I think FTP is a normal place for file transer, as the name already says: File Transfer Protocol. You don't need an extra FTP client. Just paste the link into Windows File Explorer and it will work.

However, this time I was able to upload a file to this forum. It is the zip file I was talking about. It contains the original TIFF image (and the source code of the test program I wrote), so you can easily try it out yourself.

Well, I cannot use PNG, because I need to open TIFFs coming from an external source.

But, as Paint.NET is free, I won't complain. ;)

TIFFTest.zip

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