Unhelpful GDI+ Generic error in System.Drawing.Common

[djthegr8]

Description

Linked to #49275

When trying to use GDI+ methods in Linux (specifically FillPie) I'm getting Generic GDI+ Error
This works fine in Windows and fails in Linux.

Configuration

• Which version of .NET is the code running on? 5.0.4
• What OS and version, and what distro if applicable? Ubuntu 16
• What is the architecture (x64, x86, ARM, ARM64)? x64
• Do you know whether it is specific to that configuration? yes

Other information

Error:

System.AggregateException: One or more errors occurred. (A generic error occurred in GDI+.)
 ---> System.Runtime.InteropServices.ExternalException (0x80004005): A generic error occurred in GDI+.
   at System.Drawing.SafeNativeMethods.Gdip.CheckStatus(Int32 status)
   at System.Drawing.Graphics.CheckErrorStatus(Int32 status)
   at System.Drawing.Graphics.FillPie(Brush brush, Single x, Single y, Single width, Single height, Single startAngle, Single sweepAngle)
   at System.Drawing.Graphics.FillPie(Brush brush, Rectangle rect, Single startAngle, Single sweepAngle)
   at ...

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Issue Details

---

Description

Linked to #49275

When trying to use GDI+ methods in Linux (specifically FillPie) I'm getting Generic GDI+ Error
This works fine in Windows and fails in Linux.

Configuration

• Which version of .NET is the code running on? 5.0.4
• What OS and version, and what distro if applicable? Ubuntu 16
• What is the architecture (x64, x86, ARM, ARM64)? x64
• Do you know whether it is specific to that configuration? yes

Other information

Error:

System.AggregateException: One or more errors occurred. (A generic error occurred in GDI+.)
 ---> System.Runtime.InteropServices.ExternalException (0x80004005): A generic error occurred in GDI+.
   at System.Drawing.SafeNativeMethods.Gdip.CheckStatus(Int32 status)
   at System.Drawing.Graphics.CheckErrorStatus(Int32 status)
   at System.Drawing.Graphics.FillPie(Brush brush, Single x, Single y, Single width, Single height, Single startAngle, Single sweepAngle)
   at System.Drawing.Graphics.FillPie(Brush brush, Rectangle rect, Single startAngle, Single sweepAngle)
   at ...

Author:	djthegr8
Assignees:	-
Labels:	area-System.Drawing, untriaged
Milestone:	-

[safern]

Hello, @djthegr8. Thank you for submitting the issue. This is most likely a libgdiplus issue about not supporting this specific scenario.

However, we just announced that we will not longer support System.Drawing.Common on non-Windows OSs because of libgdiplus lacking a lot of stability and features. You can read more about this here: https://github.com/dotnet/designs/blob/main/accepted/2021/system-drawing-win-only/system-drawing-win-only.md

Please let me know if you have any questions and if you need any help maybe doing this in other libraries as recommended in that document.

[djthegr8]

Thanks @safern for making me aware of this. I'm basically just using few functions .FillPie, .DrawPie, .FillRectangle and .DrawString from this, so it could be great if you could redirect me to documentation regarding their alternatives in other libraries mentioned in above deprecation link.

[safern]

I definitely will. I'm working on putting together some basic examples on these alternative libraries.