COM port not available ???

[agedoorn]

The COM1 port remains occupied after a print seccion.
The only way is to remove the COM1 port (hardware) in the device table and have them installed again.

Since I send an escape code "0RE" to a labelprinter TLP2742 (ZEBRA - ELTRON) in order to generate an EURO sign, after the seccion the COM port remains occupied.

The following is foreseen to initialise the COM port
nCOMPOORT=1
COM_FLUSH(ncompoort)
COM_OPEN(ncompoort,300,300,.T.)
COM_INIT(ncompoort,9600,"N",8,1)

Is there a solution to prevent this problem

Wim


Agedoorn - Belgium

 

[Bozz]

Try a COM_CLOSE() at the end of the code or send all of the data to the printer with com_send(). Ian Boys
DTE Systems Ltd

 

[Bozz]

Taking another look at your code, the COM_FLUSH()is probably irrelevant as the com port is not open yet. I have always been a bit lasy with making sure com ports are always closed and, just in Clipper, it does not seem to cause problems.

What is it that says the port is occupied, Clipper or Windows?

Do you know if the printer uses hardware or XON/XOFF handshaking, both are availabe in Tools.

You have not started using a Windows 98 PC? They can have a power saving problems, look at the FAQ's.

Good Luck. Ian Boys
DTE Systems Ltd