Sets the current configuration of a communications device.

BOOLEAN SetCommConfig(
  COMMHANDLE hCommDev,    // handle to communications device
  LPCOMMCONFIG lpCC,      // configuration services
  DWORD dwSize            // size of structure
);

Parameters

hCommDev

[in] Handle to the open communications device.

lpCC

[in] Pointer to a COMMCONFIG structure.

dwSize

[in] Specifies the size, in bytes, of the structure pointed to by lpCC.

Return Values

Non-zero

Success.

0 (zero)

Failure. To determine the status, call GetLastRtError.

Status

E_BUSY

An I/O operation is already in progress.

E_DISCONNECTED

COMM channel is closed.

E_PARAM

Invalid parameter.

Requirements

Requirements