Sending uncoded zero (ASCI) data on RS232

[martenbengtsson]

I want to send uncoded (ASCII) numbers over the RS232 interface. I'm having problem with sending the number 0. Since this termitaes the string that I'm trying to send.

int zero = 0;
char h = 'h';
char e = 'e';

Meddelande.Format("%c%c%c", h, zero, e);
MeddelandeStorlek = Meddelande.GetLength();

length = tmpStr.GetLength();
CheckWrite = WriteFile(Port, (LPCSTR)Meddelande,
MeddelandeStorlek, Bitskickade, NULL);

Since zero will terminate the string e is never sent.
How do I get around the termination function of NUL?

[bytz]

Is there any reason why you can't send a memory block? So for the simple case:

 

char buf[16]; // just for example; could be allocated

buf[0] = 'h';
buf[1] = 0;
buf[2] = 'e';

length = tmpStr.GetLength();
CheckWrite = WriteFile(Port, (LPCSTR)buf,
3, Bitskickade, NULL);

[martenbengtsson]

OK,
I try to do it this way.
Thanks.