On Linux, it works correctly: the drawings left and right are drawn with dashed lines. On Windows, the dash-pattern is ignored when the width is 2 or more. ---- #!/bin/bash # the next line restarts using wish \ exec /usr/bin/wish "$0" "$@" #: WinDash.tcl - HaJo Gurt - 2005-07-13 #: Bug-Demo: On Windows, dash-patterns only work with width 1 #########1#########2#########3#########4#########5#########6#########7##### package require Tk grid [canvas .c -width 300 -height 325] # dash-patterns: {2 4} {2 8} {6 4} {6 4 2 4} {6 4 2 4 2 4} .c create oval 25 25 125 125 -width 1 -dash {2 4} -fill grey60 .c create oval 175 25 275 125 -width 2 -dash . .c create line 20 150 130 150 -fill grey30 -width 1 -dash {6 4 2 4 2 4} .c create line 170 150 280 150 -width 2 -dash {6 4 2 4} for {set y 170} {$y<=180} {incr y} { .c create line 20 $y 280 $y -fill grey30 -width 1 -dash {2 4 6 4} ;# -dash .- } .c create rect 25 200 125 300 -fill grey70 -width 1 -dash {6 4} .c create rect 175 200 275 300 -width 2 -dash - ---- The tcl-help text says "all values in the dash list will be multiplied by the line width before display. This assures that "." will always be displayed as a dot and "-" always as a dash regardless of the line width." But on Windows, it looks like the dash-pattern is ignored when the width is 2 or more. ----