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For 2023 (and 2024 ...) - 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 Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own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.

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how to arm a timer

Posted by arealnewbie (arealnewbie), 2 August 2004
hi I want to make a script (for a binding) that make a window appear when the user let the mouse on an item long enought (like a tool tip ) and I haven't find how to empeach the window to appear if the mouse leave the item before the timer ends (I can't cancel the "good" timer)
Code:
$ecranRadar bind mytag <Enter> "after $timer setwindow $canvas %x %y"
$ecranRadar bind mytag <Leave> "after cancel  #??#"


Posted by admin (Graham Ellis), 3 August 2004
Set the timer ... and when it completes run a command which checks some other variable and EITHER pops up our new window OR does nothing further depending on the value of that variable. Then all you have to do is to iniialse that variable to your "I wanna window" value and change it to the "I don't wanna window value" in your other event handlers.

Hopefully this is something where the explanation is much bigger than the code  



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