In tclsh, first make an empty string: set a [] Then run the following command: string length a It returns 1. I'm expecting a return value of 0 for the length of an empty string, because it is defined to…
Below is a simple Tcl/Tk GUI program that opens a window and displays the word "Hello" in the window. The filename of the script is "hello.tk". #!/bin/sh # The next line is executed by /bin/sh, but not by Tcl exec…
The program below creates a window that contains a button. When the button is clicked, the window is iconified (minimized). After 3000 milliseconds, the window is supposed to deiconify and raise itself above all other windows. When I run the…
I installed tclsh on WSL ubuntu as follows: $ sudo apt-get install tcl $ sudo apt-get install tk $ sudo apt-get install tcllib then I created a simple TCL program: # myscript.tcl puts "hello world!" next I tried compile myscript.tcl…
I'm able to compile both Tcl and Tk just fine on Windows 10 using Visual Studio 2019 developer command prompt. Both have winmakefile.vc file. nmake -f makefile.vc will build them successfully. However, TkTreeCtrl source code located at the following location…
I'd like to show some animated GIFs (mostly for "Tip-of-the-Day" screencasts) in my Tcl/Tk application. Following https://stackoverflow.com/a/28797669/1169096, I've created this small script to play back an animated GIF in a loop: proc nextFrame {image {time 500} {index 0}} { if…
I have a problem with MenuSelect event in Tcl/Tk 8.6.11 (tried in Linux, Debian 10.7). In fact, it doesn't fire at all for the main and tearoff-ed menus. Though working fine in Tcl/Tk 8.6.9, and even in 8.6.11 - only…
I am running CentOS 7.6 $ cat /etc/system-release CentOS Linux release 7.6.1810 (Core) This is the most recent version of expect from the repos. $ expect -version expect version 5.45 As per your suggestion, I have adjusted my code to…