QNX 6, Linux and Windows compatible GUI with OpenGL support

Is there a freeware (and opensource) GUI packet/tools (forms, panel, buttons, edit fields, scrollbars, memo, label, combo box etc) which ALSO support OpenGL 3D graphics compatible with QNX 6.X, Linux and Windows XP?

Not that I am aware of.

Maybe wxWidgets, it’s not Photon native, but I guess it could be made to work under X on QNX. Not sure about OpenGL though.