I'm glad you got it working David, but I think WAY BACK WHEN I got that idea (pausing to clear the buffer on fast computers) from Jim Livermore originally! I have to do it on really FAST computers, but not on slow/moderate ones. It seems to have something to do with speed of the uart chip in the port and the drivers too.

Tracy

>Yes, I finally got it to work. Thanks to Tracy I put a inkey(1) (at the beginning of the Oncomm) to wait a second so the buffer can clear itself out.
>
>We can close this case now. 8-) Thanks again!!!
>
>>First, the last thing you should be doing is THISFORM.buffer = "". Try something like this instead:
>>

>>if this.commevent = 2
>>   thisform.buffer = thisform.buffer + this.input
>>   * Assuming a CR at the end of the scan
>>   IF CHR(13)$THISFORM.inbuffer
>>       lnscansize = AT(CHR(13),THISFORM.inbuffer)
>>       * extract scan
>>       lcmydesiredscan = SUBSTR(THISFORM.inbuffer,1,lnscansize)
>>       *delete scan
>>       THISFORM.inbuffer = SUBSTR(THISFORM.inbuffer,lnscansize+1)
>>   ENDIF
>>

>>or something similar. This leaves the .inbuffer intact in the case there are multiple scans in the buffer.
>>
>>
>>>I am still trying to figure out what is going on here. In the OnComm method I have
>>>

>>>if this.commevent = 2
>>>   thisform.buffer = ""
>>>   thisform.buffer = this.input
>>>...
>>>

>>>
>>>Then when I debug the first time it is fine. The second time it looks like it adds the input to the previous input but it is truncated. Not 2 complete data scans. What do I need to do to reset this object?
>>>