[Webinar] Streamline your web hosting managementRegister Today

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 267
  • Last Modified:

Serial ports communication

Hiya,

I'm just getting into c++ and I have a small problem. How do I open, put, and get chars from the com ports?
Some examples would be nice!
0
Severin
Asked:
Severin
1 Solution
 
FabManCommented:
If you are talking about the Win32 environment, you should use functions like CreateFile, CloseHanlde, WriteFile, ReadFile, SetupComm, SetCommState and others. If you are programming for Windows for the Windows API (16-bits) you should use functions like OpenComm, CloseComm, SendComm and ReceiveComm. When working with DOS, just use regular file functions, specifying COM1: or COM2: (or whatever the case) as a file name. Here's an example of how to use CreateFile in the Win32 API to open a serial port (there are plenty of other examples in the functions documentation):

  HANDLE hPort = CreateFile("COM1:",
      GENERIC_READ | GENERIC_WRITE,
      0,    /* comm devices must be opened w/exclusive-access */
      NULL, /* no security attrs */
      OPEN_EXISTING, /* comm devices must use OPEN_EXISTING */
      0,    /* not overlapped I/O */
      NULL  /* hTemplate must be NULL for comm devices */
      );

0

Featured Post

Never miss a deadline with monday.com

The revolutionary project management tool is here!   Plan visually with a single glance and make sure your projects get done.

Tackle projects and never again get stuck behind a technical roadblock.
Join Now