USB unit

[rsch1973]

Hello all,
I have bought a new GSM modem. Now I would like to write a programme with the BCB6 pro, which should communicate with the modem. How can I do it with the BCB? Could somebody gives me a tip (example, Internet page or a good book) how and where I should start first?

Thank you for your help.

Regards,
Ronald

 

[Totte]

Well, first it has nothing to do with the USB, you should open a COM-port and communicate over that device and for that there are several good refrences like

http://www.traverse.com/people/poinsett/bcbcomm.html

or msdn.microsoft.com/library/techart/msdn_serial.html or

http://www.ontrak.net/mfc.htm.

In the FAQ there are some good links and answers too.

I do myself use GSM-modems in my Bouild-In systems and a manual on the protocoll is invaluable.

Totte

 

[Totte]

BTW, You could install the TPAPRO package, it's a wonder of commands and functions with the serial port and modem. There is a link in this forum somewhere, search for TPAPRO.

Totte

 

[rsch1973]

Hi,
Thank you Totte. I have tried it. Receiving is working but I have some problems to send something. I am using:
WriteFile(hComm,text,50,&dwBytesWrite,NULL);
The error message from Builder is "Undefined symbol dwBytesWrite"
Could somebody help me? Cheers,
Ronald

 

[Supernat03]

Sounds like you didn't make the DWORD dwBytesWrite. Add that to the front of your routine. If you don't need to know how many bytes were actually written, then just make that value NULL. I believe that works.

WriteFile(hComm, text, 50, NULL, NULL);

Chris