Hi all! I also wrote a program pos in gambas :)
I open the cash drawer as follows:
C (constants): Gambas module file
---------------------------------
PUBLIC codeopencash AS String = ""
....
codeopencash=Chr$(27) & Chr$(112) & Chr$(0) & Chr$(27) & Chr$(112) & Chr
$(1)
.....
F (functions): Gambas Module File
---------------------------------
PUBLIC SUB abrir_caja()
DIM hFile AS File
hFile = OPEN "/dev/lp0" FOR WRITE
IF ERROR THEN
message.Error("No se puede acceder a la Caja")
ELSE
WRITE #hFile, Eval(c.codeopencash)
END IF
END
....
Regards!
El dom, 07-12-2008 a las 09:48 -0500, Stephen Bungay escribió:
> I wrote a complete POS in GAMBAS but the cash drawer was connected to
> the parallell device.. however, I did dump text to an LED pole display,
> to show the customer how much they owed and the change due etc. Should
> be fairly similar, knowing the control codes to send to the cash drawer
> might be the difficult part (might not be well documented).
>
> PUBLIC SUB OutputToPoleDisplay(pOutputString AS String)
> DIM ShellString AS String
> ClearPoleDisplay
> ShellString = "echo -ne \"" & pOutputString & "\" > /dev/ttyS0"
> SHELL ShellString WAIT
> END
>
> PUBLIC SUB ClearPoleDisplay()
> SHELL "echo -ne \"\n\n\n\" > /dev/ttyS0" WAIT
> END
>
> Regards
> Steve :)
>
> Leo Sendra wrote:
> > Hi all, I want to ask.. How to access a com port in gambas? I want my
> > program to access a cash drawer using gambas.
> >
> > Thanks...
> >
> >
> >
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