ImageMagick.MagickDelegateErrorException after update from 14.7.0 to 14.8.1

[cgockeln42]

Magick.NET version

14.8.1

Environment (Operating system, version and so on)

Ghostscript 10.03.1, Magick.NET-Q8-AnyCPU 14.8.1

Description

Hi all,

after updating Magick.NET-Q8-AnyCPU from 14.7.0 to 14.8.1 because of the recent vulnerabilities I got the following exception. It seems ghostscript (x86) cannot be loaded anymore in a x64 application to create the preview of my pdf file. Just for testing I also tried updating only to 14.8.0 but there it is also failing.

Until now I only have ghostscript installed as x86 but my application runs in x64. It worked until now. If I install ghostscript in x64 in addition now. It works again. Is this mandatory now to have a matching ghostscript version? I couldn't find anything in the changelogs. Even in ImageMagick I have not seen anything related to this.

Steps to Reproduce

Use the NuGet Magick.NET-Q8-AnyCPU in version 14.8.1 in a x64 application
Ensure only ghostscript x86 is installed
Create an instance of MagickImageInfo

Images

[dlemstra]

Please provide me with a code sample and input file that can be used to reproduce this. And on which operating system are you testing this?

I just tried to reproduce this locally with my 64-bit unit tests and I cannot reproduce your issue on Windows. I installed the latest 32-bit version and removed the 64-bit version that I had installed and my unit tests all still pass.

[dlemstra]

I still don't have a code sample that can be used to reproduce the issue.

[cgockeln42]

I will try to create a simple example on monday.

[at86]

ps+eps.zip

 var dir = "./ps+eps";
 foreach (var f in Directory.GetFiles(dir)) {
   Task.Run(() => {
     try {
       var img = new MagickImage(f);
       Dbg.log(img.Width);
     }
     catch (Exception ex) {
       Dbg.log(ex);
     }
   });
 }

[at86]

same code and files as up, 14.6.0 works well.

[dlemstra]

I am unable to reproduce your issue with only the latest version 32bit version of Ghostscript installed. I added the code in a unit test and used "run until failure". But I cannot get it to fail.

[at86]

My env is 64bit, C:\Program Files\gs\gs10.05.1\bin

[dlemstra]

I think I figured out what is causing this but I am not sure yet. Will get back to this issue when I have more information.

[dlemstra]

I found the reason this is happening and I will be going to add some unit tests to make sure this bug won't happen again. This will be resolved in the next release.

[cgockeln42]

Awesome, thanks for the very quick response and fix 👍🏼 Hope the fixed version will be release soon 😉