Greetings. The gl2 docs mention:
glpixelm x y w h address ; same as glpixels except the argument has the memory address of pixeldata. …which I would like to use. I definitely have the gl2 library loaded: glfill chkgl2@:('"/Applications/j9.4/bin/libjqt.dylib" glfill > i *i' cd <@:<.)"1 glpie chkgl2@:('"/Applications/j9.4/bin/libjqt.dylib" glpie > i *i' cd <)"1 …however glpixelm doesn’t seem to exist: glpixelm |value error: glpixelm Is there something else I need to load? Thank you. Ed ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm