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Hot keys in tcl/tk GUI: enabling and disabling

Posted by Dimon (Dimon), 11 October 2005
In my Tcl/Tk shell for c++ program I realize a hotkeys mechanism by binding a set of events to main user interface form. Sometimes I need to disable some of hotkeys. For example,  a 'Shift+Enter' combination  has binded to main form; I need to disable this combination after I start any process by pressing any key and enable it after that process will be over (or stopped).  How can it be done correctly?

Posted by admin (Graham Ellis), 13 October 2005
My immediate reaction would be to keep a flag as to whether or not a hot key is enabled, and simply ignore any attempt when it's disabled.   But you'll probably tell me that's not "correct".   Since the hot key won't have any visiible presence, there should be no need to mess with the GUI should there?

Posted by Dimon (Dimon), 14 November 2005
Mr. Graham, thank you for your assistance. Your Ideas and exact questions very helpfull. I solved a problem with keystrokes with next way:
1. I have bound all helpfull commands of my application with main menu.
2. With your help, I have learned to activate\deactivate commands in main menu.
3. I have bound keystrokes to application's main top level but have made bindings with "invoke" main menu's commands   and that's all works correctly now.

P.S. Sorry for my poor English  



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