Support Captcha for linux hosting

[NoobMaster]

System.Drawing is not support in linux OS

[Anton Mironov]

Hello NoobMaster,

The "System.Drawing" library is designed for use with Windows and relies on GDI+ (Graphics Device Interface) which is not available on Linux systems. 

An alternative is the System.Drawing.Common package, which is a cross-platform implementation of System.Drawing for .NET Core and .NET 5+ applications. It's available on NuGet and can be used in Linux environments.

I hope this information helps.

Kind Regards,
Anton Mironov
Progress Telerik

[NoobMaster]

Hello  Anton,

i know that, if you notice my question title you will know that I mean add support for Captcha to be working with Linux hosting.

because Kendo Captcha is using System.Drawing.

Thanks

 

 

[NoobMaster]

this is what im getting in .Net 8 Web App: 

System.PlatformNotSupportedException: System.Drawing.Common is not supported on non-Windows platforms.

[NoobMaster]

History

• System.Drawing started as a Windows-Only namespace
• In 2018 the System.Drawing.Common package brought System.Drawing to cross-platform .NET Core projects
• In 2021 the dotnet design team decided to only support Windows as a breaking change
• In 2021 .NET 6 projects began warning CA1416: This call site is reachable on all platforms
• In 2022 .NET 7 projects using System.Drawing.Common began throwing PlatformNotSupportedException

[Anton Mironov]

Hi NoobMaster,

Thank you for the additional details provided.

Yes, you are totally correct - the described behavior is not supported for Linux at the moment.

Here is a Feature Request opened for the same:

• https://feedback.telerik.com/kendo-jquery-ui/1603390-captcha-dependency-on-system-drawing-namespace

Feel free to vote for the item. The most voted items are considered for future implementation.

Best Regards,
Anton Mironov