||Re: Does dbase work with pole display
Mervyn Bick <email@example.com>
||Tue, 8 Oct 2019 09:36:37 +0200
On 2019-10-08 12:12 AM, Emeka wrote:
> Thank you Mervyn,
> When I clicked the Display text button, It displayed errot of 'variable undefined' LENGTH in line 612 and 613 and 'variable undefined' SENDSTR in line 616 of serialcomm.cc. Then when I click ignore severally, it will display my text on the pole display meaning its opening the port. Please how do I correct this error and continue.
The good news is that your computer is at least talking to the pole
display. Now all it needs to do is to talk sense. :-)
I'm afraid it's probably nearly 20 years since I last used
serialComm.cc. My computer doesn't have a serial port so the little test
form I posted previously was completely untested. Even if I had a
serial port installed it would be difficult to sort out problems as I
don't have a similar pole display to play with.
serialComm.cc may not accept single characters as a string so my attempt
to send reset and cursorOff messages may be causing the problem. On the
other hand, I don't recall problems sending single commands to a modem
but that was a long time ago. Back in the days when I was working I
also had access to a Data Analyser which was a great help in fixing
I suggest you start by replacing the pushbutton1_onClick() event handler
with the following.
oS = form.serialcomm1
If this works type two new messages into the entryfields and see what
happens when you click the pushbuttton.