How to assign keyboard keys on forms

[JetLi]

In a point of sale application, using the mouse is strongly discouraged, according to end users, the keyboard is much faster than reaching for the mouse and click some buttons for certain operations like make a sale, take payments, void item etc. How do we assign shortcut keys on a form like pressing just the F1,F2,F3,F4 etc for certain operations? of course we can put some buttons and provide an accelerator key so that we can press the CTRL + the assigned key to perform some actions, what if there are no buttons?

[Keith Hubert]

Re: How to assign keyboard keys on forms

Is your POS application being used on a touch screen?

[Tom Cone Jr]

Re: How to assign keyboard keys on forms

Jet,

Check the onKey event in your form layouts. It can be used to trap and handle specific keystrokes. I believe most of the "F" function keys can be reprogrammed using the onKey event script. IIRC the F6 key for some reason could not be reprogrammed. Do a bit of research and experimentation, then let us know if you have questions.

[JetLi]

Re: How to assign keyboard keys on forms

No keith, it is to be used on ordinary LED samsung monitor

[JetLi]

Re: How to assign keyboard keys on forms

Jet,

Check the onKey event in your form layouts. It can be used to trap and handle specific keystrokes. I believe most of the "F" function keys can be reprogrammed using the onKey event script. IIRC the F6 key for some reason could not be reprogrammed. Do a bit of research and experimentation, then let us know if you have questions.

Thanks Tom, what will I code on the Onkey event? I tried a search but could not get it to work.

[Tom Cone Jr]

Re: How to assign keyboard keys on forms

Really? I opened the help, typed onKey in the Google search box (lower left of window) and pressed enter. First hit gave me this.

[JetLi]

Re: How to assign keyboard keys on forms

I mean, I can't get it to work.

IF a_user.key.value = "{}" THEN
a_user.key.handled = .T.
IF a_user.key.event = "F1" THEN
END IF
END IF

By the way Tom, I have posted a 3 week old question about security but it is not answered, maybe experts have not came across it,My question was, How do I let end users choose who is going to access a form or not by selecting a user interface to toggle a user to restrict him/her in opening a form, i don't want end users to go to the main alpha five window to change security settings, how do i do this Tom?
The security step here is okey http://wiki.alphasoftware.com/Implem...y%20on%20forms but I want the Admin end user to dynamically change the password and assign who is going to open a button for example.The steps provided on the link is for one time setting of password, I want the admin end user to assign a password to a group and assign button or forms for them to access based on their respective rights. can this be possible in alpha five Tom?
Thanks in advance.

[Tom Cone Jr]

Re: How to assign keyboard keys on forms

Sorry. The sentence "I can't get it to work". Means nothing to me. You know what you mean, but you haven't told us.

In the script you display there is no key inside the french braces. The simple example in the helps is, sadly, mistaken.

to trap the F3 key the example should be:

If a_user.key.value = "{F3}" THEN

[martinwcole]

Re: How to assign keyboard keys on forms

If a_user.key.value = "{F3}" 
     a_user.key.handled=.t.
     if a_user.key.event="down"
          button1.push() 'code is under a button, like print a receipt, etc., or put code here.
          end
     end if 
end if

neither F1 nor F6 can be trapped.

you can also do things like

 
If a_user.key.value = "{^A}"  'control-A
     a_user.key.handled=.t.
     if a_user.key.event="down"
          button1.push() 'code is under a button, add a new transaction
          end
     end if 
end if 
If a_user.key.value = "{^P}" 
     a_user.key.handled=.t.
     if a_user.key.event="down"
          button1.push() 'code is under a button, like print a receipt, etc., or put code here.
          end
     end if 
end if

[Tom Cone Jr]

Re: How to assign keyboard keys on forms

Jet, please start a new thread for your security question. Thanks.

-- tom

[Tom Cone Jr]

Re: How to assign keyboard keys on forms

Thanks, Martin. At least I got part of it right!

[martinwcole]

Re: How to assign keyboard keys on forms

You just forgot, Tom, you taught me most of that maybe 13 years ago!!!!!!!

[JetLi]

Re: How to assign keyboard keys on forms

Thanks Tom and martin, Tom, I posted it days ago but no answers yet as of now, hope you can help me again on this. here is the post. http://msgboard.alphasoftware.com/al...tions-on-forms, Without a response, i tried to create another thread with the hope it will be answered, http://msgboard.alphasoftware.com/al...ic-Permissions

[Tom Cone Jr]

Re: How to assign keyboard keys on forms

Jet, have you figured out how to trap keystrokes and use the onKey event in your form to navigate between forms? You've given us no response to the ideas suggested to you in this thread.

[JetLi]

Re: How to assign keyboard keys on forms

Yap Tom, Sorry for the late reply for this, I'm having some problems connection to the internet lately, your codes and suggestions are perfectly working, I was wondering
what this code is all about
if a_user.key.event="down"
button1.push() 'code is under a button, add a new transaction
end
end if

, the (^A) is already trapped, i'm just curious of it i commented the if block and it still works, why do I need to code if a_user.key.event="down"?
' if a_user.key.event="down"
button1.push() 'code is under a button, add a new transaction
' end
' end if
even if only button1.push() code works just the same without if end if