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That worked, Bong. Thanks for the posts, Bong and prex1.

No, that doesn't work. I get the error "Can't read 'chk': no such variable". Basically, if the spinbutton reads "1", then I want to be able to reference the variable named "chk1". I can get the string "chk1" by doing chk$value. However, to get the value stored by that variable, I would have to...

I am trying to create a dynamic GUI in Tcl/Tk. I have a spinbox that the user can manipulate, and I have a number of checkbuttons that I want to be able to refer to dynamically. So, for example, in the spinbutton callback, $value refers to the value of the spinbutton. chk$value is the name of a...

I tried using update idletasks instead of update, and that gives me the behavior I was looking for, although it is a bit slower. Thanks for your help.

Excuse me, you are correct, I am using a text widget. When I call update in the Proc, I don't technically have an infinite loop, but I get an infinite loop error. I'm assuming that tcl is fooled into thinking there is an infinite loop because the fileevent is generating callbacks more quickly...

I am trying to write a virtual console that will allow the user to run programs from tcl/tk. The purpose is so the user can manupilate command-line parameters with check boxes so they don't have to retype them each time they want to change something. Here is my code: #!/usr/bin/wish # execlog -...