Re: [DUG] Touch Screen Development
Hi Rodney, I've worked on something similar in the past. You could use a block of TButtons to make a numeric keypad, that way the user doesn't need to use the keyboard for numeric input. Pedrocelli - Original Message - From: "Rodney Chan" To: Sent: Tuesday, August 23, 2011 11:13 AM Subject: [DUG] Touch Screen Development > Hi all, > > I have developed a POS software for my client many years ago. And now he > is > considering to use touch screen and get rid of keyboard and mouse (at > least > in normal operation). I would expect the development will be similar > apart > providing an on screen keyboard (Tbuttons) for numeric input. However, I > am > a bit concern about the focus. If I have data entry inside a TEdit, when > the user click on the TButton for numeric input, focus will change to the > button and the cursor will not be on the TEdit anymore. Of course, I can > change the focus back but it seems that it is a bit clumsy. > > It would be great if anybody can have some suggestions or point me to the > right direction. > > Remark: out of some old VCLs, I still prefer to use Delphi 6 for the > maintenance of this project although I have license for D2010. > > > Thanks in advance! > Rodney > > ___ > NZ Borland Developers Group - Delphi mailing list > Post: delphi@delphi.org.nz > Admin: http://delphi.org.nz/mailman/listinfo/delphi > Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: > unsubscribe ___ NZ Borland Developers Group - Delphi mailing list Post: delphi@delphi.org.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: unsubscribe
Re: [DUG] Touch Screen Development
ideally you want to design an onscreen keyboard that mounts into the form doing the entry, and then make it so that nothing on the keyboard receives focus. the easiest (possibly) way to do this is to use a TPaint or write a custom control where you map the location of mouse clicks on an image without any of them taking focus at all. you can create a list or array of TRect linking each rect to a keycode or TShortcut value. then each click on the image you would simply insert a key code into the windows event handler to be pushed to whatever has the focus. On Tue, Aug 23, 2011 at 11:33 AM, Peter Hyde wrote: > > It would be great if anybody can have some suggestions or point me to the > > right direction. > > Possible to use TSpeedbuttons instead? IIRC they do not steal focus. > > cheers, > peter > > > ___ > NZ Borland Developers Group - Delphi mailing list > Post: delphi@delphi.org.nz > Admin: http://delphi.org.nz/mailman/listinfo/delphi > Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: > unsubscribe > -- Kyley Harris Harris Software +64-21-671-821 ___ NZ Borland Developers Group - Delphi mailing list Post: delphi@delphi.org.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: unsubscribe
Re: [DUG] Touch Screen Development
> It would be great if anybody can have some suggestions or point me to the > right direction. Possible to use TSpeedbuttons instead? IIRC they do not steal focus. cheers, peter ___ NZ Borland Developers Group - Delphi mailing list Post: delphi@delphi.org.nz Admin: http://delphi.org.nz/mailman/listinfo/delphi Unsubscribe: send an email to delphi-requ...@delphi.org.nz with Subject: unsubscribe
