<![CDATA[TclTk Scripts]]>https://tcltkscripts.comRSS for NodeWed, 15 Apr 2026 23:00:59 GMT60<![CDATA[Tcl/Tk and SQLite Extensions]]>https://tcltkscripts.com/tcltk-and-sqlite-extensionshttps://tcltkscripts.com/tcltk-and-sqlite-extensionsWed, 11 Feb 2026 02:49:17 GMTLooking at an article for the book “Gist of Go: Concurrency,” I also stumbled across a reference to “High-precision date/time in SQLite” written by the same author, Anton Zhiyanov.

I use SQLite in many of my Tcl/Tk applications, so seeing extensions for SQLite was definitely of interest. Another article titled “The ultimate SQLite extension set,” offers a full list of extensions currently made available by the author.

If you’re like me, check out Anton’s website for yourself. You may be just as intrigued.

Related Articles and Resources

]]><![CDATA[Rust 1.87 - 10th Anniversary]]>https://tcltkscripts.com/rust-187-10th-anniversaryhttps://tcltkscripts.com/rust-187-10th-anniversarySun, 01 Jun 2025 14:36:05 GMTHappy 10th Anniversary and, coincidentally, “Announcing Rust 1.87.0 and ten years of Rust! | Rust Blog”

Learning Rust is a challenge on the best of days. In the articles I’ve read over the past days and years, programmers have found themselves having to deal with language syntax constraints instead of focusing on their code and the application itself.

Rust’s steep learning curve, contentious language demands, and the few developers proficient in the language result in higher development and maintenance costs and extended delivery times. Perhaps it’s a matter of familiarity with the language. I prefer to assume the latter as I continue to learn.

Many customers simply don’t care what language you use. They want a robust solution that works, and they want it yesterday.

We’ll see what Rust 1.87 brings. Who knows? As it evolves, the TIOBE index may be a little kinder to this language as more developers take the brave, bold steps to learn it.

Installing Rust

Visit Install Rust—Rust Programming Language to install the recommended version for your operating system. You can also visit rustup.rs - The Rust toolchain installer. I recommend reading the online version of The Rust Programming Language, which includes installation instructions for Rust.

Maintaining Rust is easy. To update to the latest version, enter rustup update stable in your console or terminal window.

You can easily check which version of Rust is currently installed with the rustc —version command.

Hello, World!

I use RustRover by JetBrains because it is one of the many IDEs in my All Suite subscription. However, for simple programs, Notepad++ works just as well.

fn main() {
    println!("Hello, world!");
}

Rust compiles to a relatively small executable at 142k compared to other languages executing the same or similar code.;

Memory management is strict and is one of the more fatiguing factors when working with Rust. While I have read numerous reviews, it appears that Rust is both a blessing and a curse. I contend that Rust is one of many new programming languages worth considering. However, others like Crystal and Zig may be a better alternative to delivering code on time.

]]><![CDATA[How to fix Komodo IDE - Login failed.]]>https://tcltkscripts.com/how-to-fix-komodo-ide-login-failedhttps://tcltkscripts.com/how-to-fix-komodo-ide-login-failedSun, 17 Nov 2024 23:56:07 GMT** Updated to include a fix for Linux with many thanks to Keith Schneider - See comments. **

The Problem - Login Failed

After installing an open-source version of the Komodo IDE and attempting to log in to my ActiveState account, I was surprised to see a “Login failed. It appears you are offline” error message.

I could log in to my ActiveState account using my browser, so this “Login failed” was a real problem. Fortunately, after some searching, I found a potential solution on the following webpage: Login failed, it appears you are offline (again) - Discussions - Komodo IDE & Edit | Forums.

Windows FIX

The solution simply bypasses the Sign-In window altogether. The solution I present below is for WINDOWS and differs only by the tools I used to modify the komodo.jar file and, ultimately, the single line of code in the komodo.js file.

The Modified Solution:

The original solution requires using 7Zip. However, Windows File Explorer provides a means to extract zip files.

Note that this will break any integrations with the ActiveState Platform and the ActiveState State Tool:

  1. Uninstall Komodo, then re-install and note the default install directory, something like this C:\Program Files (x86)\ActiveState Komodo IDE 12

  2. Open a Command Prompt and RUN AS ADMINISTRATOR

  3. Change the current working directory:

    1. cd C:\Program Files (x86)\ActiveState Komodo IDE 12\lib\mozilla\chrome

  4. From the command line, rename komodo.jar to komodo.zip

    1. rename komodo.jar komodo.zip

  5. Open File Explorer and navigate to C:\Program Files (x86)\ActiveState Komodo IDE 12\lib\mozilla\chrome

  6. Click on the komodo.zip file and an “Extract all” button appears on the toolbar above the list of files.

  8. Click the “Extract all” and extract the folders into the chrome folder

  9. A “Destination Folder Access Denied” window may appear. Check the box next to “Do this for all current items” then, click the “Continue” button.

  10. Three new subdirectories or folders should now appear in the “chrome” folder: content, locale, and skin

  11. Use an editor such as Notepad++ and RUN as an ADMINISTRATOR to open and edit the following file in a text editor: content\komodo.js

  12. Comment out line 27 and save.

    1. The line should have the following on it:

      1. auth.authenticated((authenticated) => { if ( ! authenticated) openLoginDialog();});

      2. Add two forward slashes “//” to the beginning of line 27 as pictured below:

  13. In File Explorer, in the chrome folder, ctrl + click on the content, locale and skin folder. Then, on one of the highlighted files, right-click > Compress to… > ZIP File

  14. A window will appear stating, “Windows cannot create the Compressed Archive Folder here. Do you want it to be placed on the desktop instead?” Click “Yes,” and the compressed file will appear on your desktop.

  15. Note that the name of the zip file will be the same as the filename you right-clicked, except it will have a “.zip” extension. In my case, the file created was skin.zip.

  16. Locate the file on your desktop and right-click it. Select properties from the menu that appears, and copy the file’s location. It should be of the form like C:\Users\ …. \ …. \Desktop.

    Left-click and hold the button down while highlighting the location. Then, right-click the highlighted text and left-click “copy” from the menu that appears to save it to your clipboard.

  17. Returning to our Command Prompt, we can copy the file from the desktop to the Chrome directory and rename it as “komodo.jar” in a single step.

  18. We should already be in the Chrome subdirectory, but we can always navigate to it with a “cd” command.

    1. cd C:\Program Files (x86)\ActiveState Komodo IDE 12\lib\mozilla\chrome

  19. Now, we can simply enter the copy command as:

    1. copy C:\Users\username\….\Desktop\skin.zip komodo.jar

    2. Note that your path will be similar to the syntax shown above.

  20. You should now have a komodo.jar file and the original komodo.zip file in your Chrome folder.

  21. After successfully testing the Komodo IDE, the extracted content, locale, and skin folders can be deleted from the Chrome subdirectory.

You should now be able to start and run Komodo without a Sign-In screen.

Linux Fix

After posting this article, I received this fix from Keith Schneider per his comment/feedback.

There is no need to uninstall anything on Linux. On Linux, Komodo (Edit and IDE) adds hidden folders to your home folder - these need to be removed after fixing the app. Otherwise, the original problem seems to persist. REMOVE the following two folders after fixing the app per your instructions (Translating to Linux ways):

rm -rf $HOME/.activestate/'komodo ide' rm -rf $HOME/komodoide

Then you can re-run the app, which will act like a brand new install but will not prompt to authenticate.

SUCCESS and Thank You

The above method(s) fixed the error, and the Komodo IDE runs without a Sign-In screen. All the credit for identifying the required changes goes to those who identified the code fix and created the original steps to change the files in kind.

Thank you to careyh -Carey Hoffman, moderator and Komodo Developer, for offering the fix: Login failed, it appears you are offline (again) - Discussions - Komodo IDE & Edit | Forums.

Thank you again to Keith Schneider for the Linux fix

]]><![CDATA[Modern Fortran: Tricks of the Software Engineering Trade]]>https://tcltkscripts.com/modern-fortran-tricks-of-the-software-engineering-tradehttps://tcltkscripts.com/modern-fortran-tricks-of-the-software-engineering-tradeFri, 31 Mar 2023 01:59:07 GMTModern Fortran: Tricks of the Software Engineering Trade by Damian Rouson

Sometimes I think I'm one of the few programmers routinely using Fortran long after my Engineering studies too many years ago.

As such, I'm pleasantly surprised when a new book like Modern Fortran: Tricks of the Software Engineering Trade" will be released. I pre-ordered my copy and expect it to arrive sometime in December of 2023.

You're never too old to learn new tricks.

cursor

I also found yet another code editor that offers a unique AI feature to help you write your code! Check out cursor!

]]><![CDATA[Add a safe.directory to your repository!]]>git add...]]>https://tcltkscripts.com/add-a-safedirectory-to-your-repositoryhttps://tcltkscripts.com/add-a-safedirectory-to-your-repositorySat, 11 Mar 2023 18:33:57 GMTI recently added a new 20GB external hard drive to my system. I added a code directory that contains some of my Tcl/Tk files. After creating and attempting to add a file to the repository, I received the following error:

F:\Code\TclTk\ReadKey>git add ReadKey.tcl fatal: detected dubious ownership in repository at 'F:/Code/TclTk/ReadKey' 'F:/Code/TclTk/ReadKey' is on a file system that doesnot record ownership To add an exception for this directory, call:

git config --global --add safe.directory F:/Code/TclTk/ReadKey

After entering the above command, I can use git to work on my project on my new drive!

git continues to surprise me and it only gets better.

We learn something new every day!

]]><![CDATA[ChatGPT on EDGE]]>https://tcltkscripts.com/chatgpt-on-edgehttps://tcltkscripts.com/chatgpt-on-edgeSun, 12 Feb 2023 16:43:52 GMTChatGPT is the latest viral AI technology to help make our lives easier. I've been using ChatGPT for several weeks, and while it's not perfect, I'm still impressed by its features and speed.

Not surprisingly, Microsoft unveiled a new version of its search engine Bing with integrated GPT-4, an AI model that powers OpenAI's ChatGPT. After reading "Microsoft Unveiled a ChatGPT-Powered Version of Bing, I decided to check out the New Bing and went one step further to "Access the new Bing faster."

The process requires you to use Microsoft's recommended settings and causes you to give up your own.

If you agree to sacrifice your current settings, click "Apply" to change your settings.

In a few seconds, you're all set to go.

Is it worth it?

Time will tell. The integration of AI is an exciting advancement in our everyday tools. Watch this video to see what the new "Edge" offers and how it works.

ChatGPT is not perfect. As with everything "software," there are risks, and no one will be liable for the "correctness" of the data it provides.

ChatGPT Monetized

On another note, ChatGPT is monetizing! $20.00 a month supposedly provides an "enhanced" ChatGPT experience. Improved "availability" and a "Turbo Mode" optimized for speed (alpha is available to plus users)

]]><![CDATA[Kinesis TKO Triple-Split Spacebar - Keyboard]]>https://tcltkscripts.com/kinesis-tko-triple-split-spacebar-keyboardhttps://tcltkscripts.com/kinesis-tko-triple-split-spacebar-keyboardFri, 03 Feb 2023 04:34:51 GMTKinesis Gaming TKO Mechanical keyboard

Of all the ways to compress keys onto a keyboard, I wondered why we need such a large spacebar. Unless people are accustomed to using both thumbs, only half or less of the spacebar is required.

After searching the web for "split spacebar keyboards," I was pleasantly surprised to discover that keyboards with split spacebars exist, which led me to buy the Kinesis Gaming TKO Mechanical Keyboard with a programmable triple-split spacebar.

This is a 60% ultra-compact keyboard featuring PBT keycaps and your choice of either Kailh Linear Red, Kailh Clicky White, or Kailh Tactile Brown key switches. The keyboard has a unique ergonomic tilt feature that enables 0, 5, or 10-degree left-to-right or right-to-left tilting, also known as tenting, and front-to-back or back-to-front tilting.

There is more to the Kinesis keyboard than meets the eye, and I was pleased with the many features they managed to pack into this keyboard. It is made with premium materials, including double-shot PBT keycaps and an anodized aluminum top.

This keyboard was designed with gamers in mind. The hardshell case that accompanies the keyboard also contains a detachable USB-C/USB-A cable, eight extra Kailh switches, a full-size spacebar, and a key switch puller.

The programmable lighting effects are an excellent complement to round out this keyboard's features.

If I have but one complaint about this keyboard, it is the same feature that inspired me to buy it in the first place: the split spacebar. I use my right thumb to strike the spacebar. The center "segment" is too short, and the "segment" to the right is too long. Reversing these two switches would be ideal for my typing style.

MDYYD Mechanical Gaming Keyboard

You may also want to consider the MDYYD Mechanical Gaming Keyboard as a lower-budget alternative. While it doesn't offer PBT keycaps or a hardshell case, it does feature a similar compact layout with ABS keycaps, Gateron Optical switches (Blue, Red, or Brown), and a split spacebar. You will also receive a Keycap Puller and a USB Cable.

You will notice the difference in the size of the spacebar segments!

It is perhaps ironic that the spacebar of most keyboards is the key requiring more space than necessary.

]]><![CDATA[Carbon?]]>https://tcltkscripts.com/carbonhttps://tcltkscripts.com/carbonThu, 19 Jan 2023 04:31:37 GMTI just read an interesting article about the Carbon programming language, an intended successor programming language to C++.

While the article presented interesting content, I was also intrigued to learn about Compiler Explorer (compiler-explorer.com) where at least 46 programming languages or their variants are supported.

The concept is not new, but I thought it was worth checking out. I definitely like that it supports Assembly, C, and Fortran, my tried and true favourites of years past and present.

How it works: Compiler Explorer — Matt Godbolt’s blog (xania.org)

As of 2023-Jan-18:

  1. Ada

  2. Analysis

  3. Assembly

  4. C

  5. C#

  6. C++

  7. C++ (Circle)

  8. C++ for OpenCL

  9. CIRCT

  10. Clean

  11. Cpp2-cppfront

  12. Cppx

  13. Cppx-Blue

  14. Cppx-Gold

  15. Crystal

  16. D

  17. Dart

  18. Erlang

  19. F#

  20. Fortran

  21. Go

  22. Haskell

  23. HLSL

  24. Hook

  25. ispc

  26. Jakt

  27. Java

  28. Julia

  29. Kotlin

  30. LLVM IR

  31. MLIR

  32. Nim

  33. OCaml

  34. OpenCL C

  35. Pascal

  36. Pony

  37. Python

  38. Racket

  39. Ruby

  40. Rust

  41. Scala

  42. Solidity

  43. Swift

  44. TypeScript Native

  45. Visual Basic

  46. Zig

]]><![CDATA[Speed Typing]]>https://tcltkscripts.com/speed-typinghttps://tcltkscripts.com/speed-typingMon, 02 Jan 2023 04:35:33 GMTSome would say that I have a "thing" for keyboards, and I would have to agree. I learned to type in grade nine and haven't stopped keyboarding since. After delivering more than my fair share of newspapers, I finally saved enough money to buy my typewriter in grade eleven.

According to my teacher, my typing skills were above average. I could quickly type over 80 words per minute on a mechanical machine, and my typing speed cleared 100 words per minute on an electric typewriter. I've had a passion for improving my typing speed ever since.

Many different factors may influence your typing speed, but the fundamental elements that matter most are:

  1. Posture:

    1. Feet flat on the floor,

    2. Wrists in a neutral position (avoid lifting or dropping your wrists),

    3. Forearms at 90 to 110 degrees,

    4. Back straight,

    5. Head up, and

    6. Eyes straight - Top of the screen should be at eye level

  2. Touch Typing:

    1. Learn to type using all of your fingers. This is the best and fastest means of typing. While some have become proficient using just a few fingers, they seldom achieve the speeds possible through touch typing.

    2. Keep your fingers positioned on or over the home row. The fingers of your left and right hand should hover over the letters asdf and jkl; respectively.

  3. Keyboard:

    1. Treat your fingers to a premium keyboard. Many factors define a premium keyboard, and many of them carry a fairly hefty price tag.

    2. I own many different keyboards in various styles. Still, my favourites are the Logitech Craft keyboard and Logitech MX Keys Advanced Wireless Illuminated keyboards, as they both support my workflow across multiple computers and with my MX Master 3S mouse.

    3. As a programmer, my daily driver is the Happy Hacking Keyboard, and the reasons why are worthy of a separate post.

    4. Preventive maintenance: keep your keyboard clean!

      1. Purchase a cover to prevent harmful spills from damaging your keyboard.

      2. Store your keyboard in a carrying case when travelling.

    5. Remember, if you can't type, the best keyboard in the world won't help you.

  4. Ergonomics:

    1. Keyboard layout: QWERTY versus DVORAK

    2. Key Switches:

      1. Type: Mechanical, Optical,

      2. Travel: Pre-Travel / Full Travel

      3. Actuation Force

    3. Tilt: positive/negative - left/right - both

  5. Practice:

The exercises are not a substitute for the real world, but they will help you perform better.

]]><![CDATA[TCL/Tk 8.6.13 - Update]]>https://tcltkscripts.com/tcltk-8613-updatehttps://tcltkscripts.com/tcltk-8613-updateSun, 18 Dec 2022 23:05:10 GMTThe holiday season is rapidly approaching and I've been busy wrapping up what has proven to be a very challenging year - in a good way! As for Tcl/Tk, the updates continue.

Magicsplat Tcl/Tk for Windows (8.6.13) is now available for download from Sourceforge. This update includes tclfpdf 1.5.1 and the following packages have been updated:

  • cffi 1.2.0

  • itcl 4.2.3

  • mentry 3.16

  • nsf 2.4

  • rbc 0.1.2

  • scrollutil 1.17

  • sqlite3 3.40.0

  • tablelist 6.20

  • TDBC 1.1.5

  • tdom 0.9.3

  • thread 2.8.8

  • tkdnd 2.9.2

  • twapi 4.7.2

  • wcb 3.8

Tcl/Tk doesn't receive the same level of excitement as some of the more prominent programming languages and the releases arrive with little fanfare.

I use ActiveState's Komodo IDE for writing the majority of my Tcl/Tk applications and was surprised to learn that it will become an open source project going forward. Updates have been waning for quite some time, and it is perhaps the next best move on their part.

Until next time ...

]]><![CDATA[Qwerkywriter S Keyboard]]>https://tcltkscripts.com/qwerkywriter-s-keyboardhttps://tcltkscripts.com/qwerkywriter-s-keyboardSat, 26 Nov 2022 20:22:53 GMTDisclaimer: I may earn a commission for items purchased using links in this article, and thank you in advance for your support.

As a programmer, I spend hours at a time writing code. While I prefer my Happy Hacking Keyboard for coding, I am particularly fond of my Qwerkywriter S keyboard.

The Qwerkywriter S Keyboard brings a touch of nostalgia to my desktop. I originally bought this keyboard for its pleasantly unique aesthetic. It boasts a scratch-resistant all-aluminum chassis, two-piece typewriter-inspired keycaps, a programmable macro return bar, and an integrated tablet stand which accommodates my iPad Pro quite nicely.

The keyboard can be set to sleep after 10, 20, or 30 minutes of inactivity to conserve power! Setting the sleep timer to "off" is also an option and not recommended. The sleep timer has no effect if you use a wired USB connection.

Qwirkywriter S Resized.jpg

Weighing in at 2.75 lbs (1.25 kgs), the Qwerkywriter keyboard is heavier than most and not necessarily designed to fall into my portable category any time soon. However, the weight of the keyboard, coupled with the rubber feet on its underside, makes for a solid and stable presence.

Documentation and Setup

Please read the documentation to set up the keyboard and familiarize yourself with all of its features. Setting up the Bluetooth connections is slightly different than you would expect compared to other multi-device keyboards. However, switching between devices is simply a matter of using the applicable "fn" + "number" key combination, where the number is either 1, 2, or 3 to match your selected device.

Features

  • 75% keyboard layout.
  • Left and right scroll knobs provide scrolling and volume controls, respectively.
  • Cherry Blue MX clicky switches. Not quite the same as the clacking we would expect from a real typewriter, but the clicky switch is an admirable attempt to replicate the experience.
  • Connect up to three devices using Bluetooth.
  • or use the supplied braided USB cable to connect in Wired USB mode with NKRO support.
  • Rechargeable battery that lasts up to 4 weeks, depending on your usage.
  • Programmable "carriage return" macro function. While the default Enter key behaviour is apropos, pressing "fn" + "carriage return" can record up to, including modifier keys. Press the "fn" key when finished, and the macro is ready to run.
  • NKEY mode provides a faster response time when keys are typed and is available in both wired and Bluetooth modes. However, enabling this feature consumes more power, and you will have to charge your keyboard more frequently.
  • Windows, MacOS, iOS, and Android compatible.
  • 12-month limited warranty to the original purchaser. An extended 3-year warranty is available for purchase.

Built for Looks and Speed

I'm primarily a programmer and always a writer. As for speed typing, this keyboard doesn't slow me down. I tested my typing speed at 10fastfingers.com using the Qwerkywrite S keyboard in NKEY mode. I was pleasantly surprised that my typing speed is at least as good as with my other high-end keyboards.

Switches can make or break your experience with a keyboard.

No INSERT Key

Of all the great features this keyboard offers, there is no INSERT key. Of course, the traditional vintage typewriter never had an insert key either, and if it did, White Out might never have been invented.

However, some editors allow you to overwrite existing text which is toggled by pressing the insert key. Other applications also take advantage of the insert key. Some of these same applications allow you to map a different key to achieve the same functionality the insert key offers.

Ergonomics

There is no tilt adjustment feature to adjust the keyboard's angle, and I would suggest they aren't necessary. My desk has a drop-down front pull-out drawer that serves as my keyboard tray and allows me to work with an ergonomically friendly posture.

For this same reason, I don't require a wrist pad, as my wrists maintain a neutral position while typing. If you're using this keyboard on your desktop and resting your forearms against the front lip of your desk, I would recommend getting a wrist rest as well.

Final Thoughts

The Qwerkywriter Keyboard is a high-end keyboard worth every penny. The look and feel of this keyboard bring back memories from my early teenage years of learning to type in high school.

The build and execution of the features of the Qwerkywriter S Keyboard are exceptional and present excellent value for the money. I highly recommend the Qwerkywriter S keyboard to anyone looking to add that vintage look and feel to their home or office space.

]]><![CDATA[Updating Linux on Windows]]>https://tcltkscripts.com/updating-linux-on-windowshttps://tcltkscripts.com/updating-linux-on-windowsSun, 06 Nov 2022 21:28:02 GMTRunning Ubuntu Linux on your Windows machine?

Stay Up to Date

Here's what to do to ensure you have the latest packages installed on your machine. Run the following commands and enter your password when prompted:

1. Check for new updates.

sudo apt update

2. List of upgradeable packages.

apt list --upgradable

3. Install the updates

sudo apt upgrade

Three simple commands are all it takes. I'm running Ubuntu 20.04.5 LTS (GNU/Linux 5.10.16.3-microsoft-standard-WSL2 x86_64) on my Windows machine.

]]><![CDATA[Tcl/Tk Tools]]>https://tcltkscripts.com/tcltk-toolshttps://tcltkscripts.com/tcltk-toolsFri, 28 Oct 2022 00:52:24 GMTYou may not believe this, but ...

I purchased a copy of Tcl/Tk Tools by Mark Harrison and other contributors (with a foreword by John Ousterhout), O'Reilly & Associates, Inc. (August 1997 - First Edition). ISBN: 1-56592-218-2, 653 Pages.

Why?

As the book title suggests, Tcl/Tk Tools documents the most popular (at the time) and robust extensions written by the extension authors themselves.

Understanding how to use the extensions also provides additional insights into using Tcl/Tk as well. Topics of interest include the display of 3D graphics with rich textures (TSIPP), Network over sockets and remote procedure calls (Tcl-DP), and Embed Tk calls in C programs (ET), to name a few.

Years ago, I was reminded to always "Remember your roots." Tcl/Tk may be dated in many respects, but delving into the history of a programming language offers a glimpse into the many tools we enjoy today.

Tcl/Tk Tools - Software

I'll be spending a few weeks combing over the information in this book, and I finally get to blow the dust off of my CD-ROM drive to load the sources and binaries for Tcl/Tk core and the extensions documented in the book.

Business Reply Mail

O'Reilly would like to hear from you! I wonder how the mailroom at O'Reilly & Associates would react if I mailed them the "Business Reply Mail" card from the back of the book.

]]><![CDATA[Windows Terminal Preview 1.16]]>https://tcltkscripts.com/windows-terminal-preview-116https://tcltkscripts.com/windows-terminal-preview-116Wed, 21 Sep 2022 03:12:35 GMTMicrosoft's Windows Terminal has become a second home on my machine, especially since I've been writing and running more code on Windows Subsystem for Linux. Microsoft's recent release of Windows Terminal Preview 1.16 introduces some nice new touches.

You can tailor your terminal sessions using the various settings options available. Individual profiles can also be tailored to your specific requirements.

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More Information ...

To learn more about Windows Terminal Preview, visit the Microsoft App Store.

Get, then Install the App

Click "GET" on the Microsoft App Store page to download Windows Terminal Preview to your machine.

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https://youtu.be/8gw0rXPMMPE

Related Articles and Resources

]]><![CDATA[Komodo IDE]]>https://tcltkscripts.com/komodo-idehttps://tcltkscripts.com/komodo-ideSat, 10 Sep 2022 04:28:44 GMTI use ActiveState's Komodo IDE exclusively for writing, testing, and debugging my Tcl/Tk code. However, once I've set up the environment, I want to execute my code without navigating through the Debugging Options window.

image.png

To skip this dialogue window, we need to change our preferences.

  • Click the EDIT tab on the main menu.

image.png

  • Click PREFERENCES, and a dialogue box similar to the one shown below will appear:

image.png

  • Click the Debugger option in the sidebar

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  • Click on the Checkbox next to "Skip debugging options dialogue when launching."

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If checked, the "Debugging Options" dialogue will NOT appear, and your code will execute immediately following the press of the "Play" button or the F5 key.

  • Click the APPLY button on the bottom right corner of the screen.

  • Click OK to return to the main IDE window.

  • Now, when you press the PLAY button, press the F5 function key, or Debug > Go/Continue from the main menu, your code will start running immediately.

]]><![CDATA[Me and My Arduino]]>https://tcltkscripts.com/me-and-my-arduinohttps://tcltkscripts.com/me-and-my-arduinoThu, 08 Sep 2022 05:10:25 GMTIntroduction

The more I learn about MQTT, the more intrigued I become. I recently purchased an Arduino Starter Kit containing an Arduino Uno R3, a book with 15 projects, and a variety of sensors, resistors, LEDs and more. I'm anxious to develop an MQTT project and thought it best to start with minimal investment at this time.

A quick search of the Library Manager suggests several MQTT libraries are available:

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Arduino IDE

Visit the Arduino Software page to download the stable (1.8.19), latest release candidate (2.0.0-rc9.3) or nightly builds.

I highly recommend downloading the Arduino IDE 2.0.0 (rc9.3) directly from the Arduino.cc website. As part of the installation process, you will be prompted to provide permission to download libraries to your machine as well, and there are many of them.

Version 2.0.0 is more intuitive and user friendly.

Getting Started - arduino.cc/starterkit

Arduino Software - Downloads

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Windows Security

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Windows in Store App

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![image.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1661723491720/EE9w5UCSp.png align="center"

WiFi101/WiFiNINA Firmware/Certificates Updater

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Troubleshooting

I plugged in my Arduino using the USB port and attempted to connect only to receive this error: "Board at null is not available."

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Device Manager Windows > Control Panel > Device Manager

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Clicking on the Arduino Uno (COM3)

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ERRORS!

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Right Click and Update the Drivers. Close all windows, reboot your machine.

It worked!

Libraries

http://www.arduino.cc/en/Guide/Libraries

Code Online -

https://www.arduino.cc/en/Guide

https://www.arduino.cc/reference/en/libraries/mqtt/

Documentation (GitHub)

Getting Help

-Arduino Programming Environment (IDE)

Industry 4.0

Industrial scale

Purchasing Arduino Products

You will be pleased to learn that you can order directly from the Arduino site, and you can choose your shipping country. As for me, it's good to know Arduino Online Shop ships to Canada!

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My Hardware

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]]><![CDATA[Docker - A Must Have]]>https://tcltkscripts.com/docker-a-must-havehttps://tcltkscripts.com/docker-a-must-haveFri, 19 Aug 2022 01:40:20 GMTYou begin to wonder why specific topics continue to appear on your screen time and again. Docker and Kubernetes seemingly appear whenever I start searching and delving deeper into a subject.

I understand why now that I've been playing with Docker for a while. It's a fantastic ecosystem of its own.

Download Docker and create an account. Docker is free for individuals, and you can upgrade your account from "Personal" to one of the paid tiers, including Pro, Team, and Business.

Once you've installed Docker, run the Docker Desktop to manage images, containers, volumes, and development environments.

It is a simple matter to download a docker image and create a container. Open a terminal session on your machine and enter the following command at the prompt: docker pull ubuntu.

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When you sign in to your docker account, you can choose from a large variety of "images" to run on your machine. Click on the "Explore" option on the main menu and enter "python" in the search bar. A selection of images appears.

Click on the "python (Docker Official Image)," and a new page appears where you'll find instructions for setting up and using this image on your machine.

In a terminal, type: docker pull python as pictured below.

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Crystal is one of my more recent language interests, so I downloaded an image in kind.

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Docker Desktop

We can immediately see the Images on our Docker Desktop.

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To use an image, hover over the image and click run:

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When we click "run," several symbols appear terminal, pause, refresh, stop, and trash.

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We can access our Python image if we click on the terminal button. At the "#" prompt, type python and a python terminal session should start as pictured below.

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We're all set and good to go.

Related Articles and Resources

Free Docker Complete Course (3-Hour). Video

]]><![CDATA[ImHex - Hex Editor]]>https://tcltkscripts.com/imhex-hex-editorhttps://tcltkscripts.com/imhex-hex-editorMon, 01 Aug 2022 11:00:12 GMTAs a developer, I have created a number of binary utilities to support my applications. However, today I discovered ImHex on daily.dev and I was impressed enough to want to share it with anyone who has the need for more than a simple Hex editor.

So, check out the link and discover what ImHex can do for you and say hello to binary bliss!

]]><![CDATA[3rd Party Software "Tooling"]]>https://tcltkscripts.com/3rd-party-software-toolinghttps://tcltkscripts.com/3rd-party-software-toolingSat, 23 Jul 2022 12:44:19 GMTI am seldom impressed when an application requires a third-party software tool to make it work. There, I said it.

Why? The explanation is simple. You can't control the destiny of a third-party software provider.

]]><![CDATA[Syntax Errors and "Errata" Moments]]>https://tcltkscripts.com/syntax-errors-and-errata-momentshttps://tcltkscripts.com/syntax-errors-and-errata-momentsSat, 23 Jul 2022 12:19:08 GMTI have Ubuntu Linux 22.04 installed on my Windows machine. I was working through an example from a book that required running the "time" command. However, the syntax was wrong. Since time is not a command I use frequently, I wanted to understand the available options and why the syntax failed.

The terminal command session and outputs below are self-explanatory:

$ type -a time
time is a shell keyword
time is /usr/bin/time
time is /bin/time

$ /usr/bin/time
Usage: /usr/bin/time [-apvV] [-f format] [-o file] [--append] [--verbose]
       [--portability] [--format=format] [--output=file] [--version]
       [--quiet] [--help] command [arg...]

$ /usr/bin/time --version
GNU time 1.7

$ /bin/time
Usage: /bin/time [-apvV] [-f format] [-o file] [--append] [--verbose]
       [--portability] [--format=format] [--output=file] [--version]
       [--quiet] [--help] command [arg...]

$ /bin/time --version
GNU time 1.7

I can only attribute the syntax error to an "errata" moment in the book, as only two options begin with a single - and -- must precede all the remaining options.

Almost every book published refers to the "errata" page to report or review known errors. Unfortunately, discovering them as you work through a book introduces unexpected and often time-consuming frustration.

Perhaps it's time for a different kind of eBook - one that has a "version control" mechanism that triggers an "Upgrade Available" that automatically notifies readers of changes to the text or code.

If we can do it with code, there must be a way with plain text!

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