jcolby at colbyconsulting.com
jcolby at colbyconsulting.com
Sun Jul 13 19:27:55 CDT 2003
You can discover what these characters are and use them to determine when the entire message has been received. John W. Colby www.colbyconsulting.com -----Original Message----- From: accessd-bounces at databaseadvisors.com [mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Joe Rojas Sent: Friday, July 11, 2003 12:23 PM To: 'Access Developers discussion and problem solving' Subject: RE: [AccessD] MSComm control - Cross post AccessD & dba-vb At the end of every "record" there are three nonprintable characters. I can't tell what exactly they are because when viewing the data that was captured to a text file in notepad all I see are 3 boxes. How can I use this to my advantage? Thanks! Joe R. -----Original Message----- From: John Colby [mailto:jcolby at colbyconsulting.com] Sent: Friday, July 11, 2003 11:58 AM To: Access Developers discussion and problem solving Subject: RE: [AccessD] MSComm control - Cross post AccessD & dba-vb Does the device send a terminator? A fixed length string? I would think it has to send a terminator character saying it's "done". John W. Colby www.colbyconsulting.com -----Original Message----- From: accessd-bounces at databaseadvisors.com [mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Joe Rojas Sent: Friday, July 11, 2003 10:54 AM To: 'Access Developers discussion and problem solving' Subject: [AccessD] MSComm control - Cross post AccessD & dba-vb Hi All, I am using the MSComm control to capture data the is coming over the serial port. I am using the OnComm event to determine when data is received by looking at the ComEvent property and detecting a comEVReceive status. When the attached device sends information to the serial port it actually send 3 lines of information (on average, could be more). What I am wondering is when does the OnComm event fire? Does it fire after all the data has been received or does it fire as soon as the first character is received into the input buffer? What I am trying to avoid is pulling the data from the input buffer before all the data is there. That way I can capture everything I need before I start parsing the data. Any ideas? Thanks! Joe R. This electronic transmission is strictly confidential to TNCO, Inc. and intended solely for the addressee. It may contain information which is covered by legal, professional, or other privileges. If you are not the intended addressee, or someone authorized by the intended addressee to receive transmissions on behalf of the addressee, you must not retain, disclose in any form, copy, or take any action in reliance on this transmission. If you have received this transmission in error, please notify the sender as soon as possible and destroy this message. While TNCO, Inc. uses virus protection, the recipient should check this email and any attachments for the presence of viruses. TNCO, Inc. accepts no liability for any damage caused by any virus transmitted by this email. _______________________________________________ AccessD mailing list AccessD at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/accessd Website: http://www.databaseadvisors.com _______________________________________________ AccessD mailing list AccessD at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/accessd Website: http://www.databaseadvisors.com This electronic transmission is strictly confidential to TNCO, Inc. and intended solely for the addressee. It may contain information which is covered by legal, professional, or other privileges. If you are not the intended addressee, or someone authorized by the intended addressee to receive transmissions on behalf of the addressee, you must not retain, disclose in any form, copy, or take any action in reliance on this transmission. If you have received this transmission in error, please notify the sender as soon as possible and destroy this message. While TNCO, Inc. uses virus protection, the recipient should check this email and any attachments for the presence of viruses. TNCO, Inc. accepts no liability for any damage caused by any virus transmitted by this email. _______________________________________________ AccessD mailing list AccessD at databaseadvisors.com http://databaseadvisors.com/mailman/listinfo/accessd Website: http://www.databaseadvisors.com