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OpenComm (Serial Communications)
INtime SDK v7 > About INtime > Networking and I/O > Serial Communications (COMM) > OpenComm (Serial Communications)

Opens a handle to a communications device.

COMMHANDLE OpenComm(
  LPCSTR lpCommName,        // device name
  DWORD  dwFlags            // action and attributes
);

Parameters

lpCommName
[in] Pointer to a null-terminated string that names the device to be opened. Currently, those devices may be COM1 through COM255.
dwFlags
[in] None defined.

Return Values

A device handle
Success.
INVALID_COMM_HANDLE
Failure. To determine the status, call GetLastRtError.

Status

E_EXIST
COMM channel does not exist.
E_PARAM
Invalid parameter.

Requirements

Versions Defined in Include Link to
INtime 3.1 intime/rt/include/comm.h comm.h comm.lib
See Also