Re: tab and back tab
Paul Watson wrote: > > Pete Frehner wrote: > > > > I have a simple question regarding keyboard navigation in 4GL forms. I > > realize that the tab key (and return key) move forward field to field, but > > why doesn't the back tab move to the previous field? Having a skull cramp > > and can't seem to figure this out.... > > > > Thanks in advance. > > > > pfrehner@praeda.com > > My guess is that backtab is a PC invention and doesn't exist on dumb > terminal keyboards, at least on most of mine it doesn't. Check out the > keycode generated by the backtab and tweak the termcap etc to > accommodate > it You are quite right Paul, but I don't think that's going to help, unless you explicitly look for it in your code. The convention for moving back a field is <BACKSPACE>, <LEFT ARROW>, and sometimes <UP ARROW>. I don't think you want to substitute any of these. ;-) You could define an unused function key with the back tab keycode, as you say, then code for this F-key, but it would not be trivial. Cheers, -- Mark. +----------------------------------------------------------+-----------+ | Mark D. Stock mailto:mdstock@mydas.freeserve.co.uk |//////// /| | http://www.informix.com http://www.informixhandbook.com |///// / //| | http://www.iiug.org +-----------------------------------+//// / ///| | |What year 2000 bug? year 2000 bug? |/// / ////| | |year 2000 bug? year 2000 bug? year |// / /////| | |2000 bug? year 2000 bug? year 1900 |/ ////////| +----------------------+-----------------------------------+-----------+
I was suggesting that the BACKTAB should generate the LEFT ARROW or whatever code Informix would never know that the key was BACKTAB pretending. "Mark D. Stock" wrote: > > Paul Watson wrote: > > > > Pete Frehner wrote: > > > > > > I have a simple question regarding keyboard navigation in 4GL forms. I > > > realize that the tab key (and return key) move forward field to field, but > > > why doesn't the back tab move to the previous field? Having a skull cramp > > > and can't seem to figure this out.... > > > > > > Thanks in advance. > > > > > > pfrehner@praeda.com > > > > My guess is that backtab is a PC invention and doesn't exist on dumb > > terminal keyboards, at least on most of mine it doesn't. Check out the > > keycode generated by the backtab and tweak the termcap etc to > > accommodate > > it > > You are quite right Paul, but I don't think that's going to help, unless > you explicitly look for it in your code. The convention for moving back > a field is <BACKSPACE>, <LEFT ARROW>, and sometimes <UP ARROW>. I don't > think you want to substitute any of these. ;-) > > You could define an unused function key with the back tab keycode, as > you say, then code for this F-key, but it would not be trivial. > > Cheers, > -- > Mark. > > +----------------------------------------------------------+-----------+ > | Mark D. Stock mailto:mdstock@mydas.freeserve.co.uk |//////// /| > | http://www.informix.com http://www.informixhandbook.com |///// / //| > | http://www.iiug.org +-----------------------------------+//// / ///| > | |What year 2000 bug? year 2000 bug? |/// / ////| > | |year 2000 bug? year 2000 bug? year |// / /////| > | |2000 bug? year 2000 bug? year 1900 |/ ////////| > +----------------------+-----------------------------------+-----------+ -- Paul Watson # WF Software Ltd # You are only young once Tel: +44 1436 674729 # but you can be immature Fax: +44 1436 678693 # for ever www.wfsoftware.com #