This function is documented as "[chooseColor]".

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[Michael Schlenker] contributed the following example of the use of this
function over on [comp.lang.tcl]:

 
 # set color variable to color value returned from tk_chooseColor
 set color [tk_chooseColor]
 # be .c an canvas with some objects in it , sets the -fill color of all
 # items to $color
 .c itemconfigure all -fill $color


[Robert Heller] also answered in the same comp.lang.tcl thread with this
code fragment:


 canvas .thecanvas
 pack .thecanvas
 .thecanvas create oval 0 0 50 50 -fill red -outline blue -tag theOval
 .thecanvas itemconfigure theOval -fill \
        [tk_chooseColor -initialcolor [.thecanvas itemcget theOval -fill]]
 .thecanvas itemconfigure theOval -outline \
        [tk_chooseColor -initialcolor [.thecanvas itemcget theOval -outline]]









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