[PD] (Tcl) UNHANDLED ERROR: can't read "_left": no such variable

Peter P. peterparker at fastmail.com
Sun Nov 19 22:10:47 CET 2017


Hi list,

I am trying to display the help patch for [pix_threshold]. I am getting
the below error having started pd -verbose. This is when I try to open
the help patch for [pix_threshold]. The patch loads but no window is
displayed.  This is on Debian testing with Pd-0.48.0 from the Debian
package and Tcl/Tk 8.6.0+9. Thanks! Peter

tried /usr/lib/pd/extra/Gem/pix_threshold-help.pd and succeeded
tried /usr/lib/pd/extra/Gem/gem_imageMAGICK.so and succeeded
Image loading support: magick
tried /usr/lib/pd/extra/Gem/examples/data/fractal.JPG and succeeded
[pix_draw]: requesting [pix_draw] - consider using [pix_texture]
(Tcl) UNHANDLED ERROR: can't read "_left": no such variable
    while executing
"expr {[winfo rootx $winid] - $_left}"
    (procedure "::pdwindow::configure_window_offset" line 11)
    invoked from within
"::pdwindow::configure_window_offset"
    (procedure "pdtk_canvas_place_window" line 2)
    invoked from within
"pdtk_canvas_place_window $width $height $geometry"
    (procedure "pdtk_canvas_new" line 2)
    invoked from within
"pdtk_canvas_new .x55a21932c7a0 695 421 +550+226 0"
    ("uplevel" body line 15)
    invoked from within
"uplevel #0 $docmds"



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