How do the various smalltalk VMs provide cross-platform graphics for morphic?

Question

For example, Pharo and Squeak are different implementations of Smalltalk. Are there specific bindings in the smalltalk VM for each platform?

Answer 1

Morphic is implemented with Smalltalk in Pharo and Squeak. So there are no bindings to an external graphics library. Though there are some differences the basic API is the same.

• Pharo by example, chapter 11
• Squeak by example, chapter 11
• Squeak wiki http://wiki.squeak.org/squeak/30 contains useful notes how Morphic works.

There is as well a Morphic implementation in Cuis Smalltalk which aims at a version 3 of Morphic (more).