GDI+ support on linux

As far as I know GDI+ is a Windows-only API, anyway I've read around that one might write his code in GDI+ and be able to port it to linux with something like this:

Is this true? Does anyone have experience of GDI+ applications that can also run on linux?

https://www.winehq.org/docs/winelib-guide/winelib-introduction

Yes it is sort of true, if your windows binary will run with wine then your windows source code will most likely compile using winelib aswell (Making porting quite a bit easier)

There's also the libgdiplus library used by Mono: http://www.mono-project.com/docs/gui/drawing/

GDI+ is available on Linux through http://www.mono-project.com/docs/gui/drawing/. It only makes sense to use from C# - if you are using C or C++ there are much better options available.