>>I want to write some data to a datacard machine through communication port,
>>I use function FOPEN to open the port
>> FOPEN("COM1", 12)
>>however, it always returns the value -1. And I can't find any other
>>information about
>>the communication port in the help file.
>>My questions are how to open a COM port in VFP 5 and how to write data to
>>it.
>>
>>Thanks !
>Check out the MSComm Active X control. The FOPEN is no longer functional under the 'Visual' version of FoxPro.
When did FOPEN stop working in VFP5 ?