I guess you have already tried it but if not: there is the iup lua library which use native toolkit on windows and gtk on Linux. https://www.tecgraf.puc-rio.br/

I guess you have already tried it but if not: there is the iup lua library which use native toolkit on windows and gtk on Linux. https://www.tecgraf.puc-rio.br/iup/ https://www.tecgraf.puc-rio.br/iup/ Also I would be happy if you briefly describe the problems you had with haxe.