[mushiake]

IUP[0] has not been menthioned.

IUP is wrapper for gtk+, motif and win32.

Pros:

* really simple api

* native toolkit

* c api, so other languages can easily write binding for it

Cons:

* controlls(widgets) are limited

* cocoa(mac) is not supported {they suggest to use gtk instead}

* documentation is spotty

* nobody is using? (I believe no linux distros have it in repository)

somebody here menthioned libui[1], it is exactlly the same philosophy

[0]http://webserver2.tecgraf.puc-rio.br/iup/ [1]https://github.com/andlabs/libui

[corysama]

There is a project to add cocoa support that would appreciate some help.

https://github.com/ewmailing/IupCocoa/tree/Cocoa