I think it would make a lot of sense to rename a few functions/procs so that they all match the pd message, but I haven't does this yet in pd-devel. For example:
"mouse" message: Tcl: pdtk_canvas_click -> pdtk_canvas_mouse C: canvas_mousedown -> canvas_mouse
"mouseup" message Tcl: pdtk_canvas_mouseup C: canvas_mouseup
This makes the code much easier to follow, and therefore debug and improve :)
.hc
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