PDL's TriD graphics now (as of 2.066) uses OpenGL::GLUT which implements glutCloseFunc (although I plan to integrate that back into main OpenGL). The TriD support has received a fair bit of updating this year (2022), and I also intend to bring back the Tk support to enable better viewing controls. See https://github.com/PDLPorters/pdl/issues/328 for the issue tracking this.

In reply to Re^3: PDL TriD 3d graphics with Tk sliders.... linux only by etj
in thread PDL TriD 3d graphics with Tk sliders.... linux only by zentara

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