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Training, Open Source Programming Languages |
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| For 2023 - we are now fully retired from IT training. We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk. Lisa and I (Graham) now live in what was our training centre in Melksham - happy to meet with former delegates here - but do check ahead before coming round. We are far from inactive - rather, enjoying the times that we are retired but still healthy enough in mind and body to be active! I am also active in many other area and still look after a lot of web sites - you can find an index ((here)) |
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Making a variable dynamically visible in a Tcl/Tk GUI set bill "and Ben"Tcl/Tk's -textvariable option, on commands like label and button, allows you to have the contents of a variable display within you GUI (Graphic User Interface) ... and simply changing the value in the variable will change your display. Quick, elegant, easy to program and easy to maintain. (written 2007-12-15, updated 2007-12-16) Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles T224 - Tcl/Tk - Events in Tk[386] What is a callback? - (2005-07-22) [3575] Multiple buttons calling the same proc in wish (tcl/tk) - (2012-01-12) [4258] Keeping you Tkinter display up to date while monitoring - (2014-04-06)
Some other Articles
Decisions - small ones, or big ones?Shopping for Christmas and looking forward Tcl/Tk - updating your display while tasks are running Using Tcl/Tk resource files for flexible applications Making a variable dynamically visible in a Tcl/Tk GUI The Horse goes on and on Cliff Lift simulator- Lynton to Lynmouth - in Tcl/Tk fill and expand on Tcl/Tk pack command Curley brackets v double quotes - Tcl, Tk, Expect Lexical v Arithemetic testing, Bash and Perl |
4759 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96 at 50 posts per pageThis is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.
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