Serial Framework C++ Edition

◆ TransmitCommChar()

int TransmitCommChar ( const char  Ch) const

Transmits a specified character ahead of any pending data in the output buffer of the specified communications device.

Parameters
ChThe character to be transmitted.
Returns
If the function succeed the return value is WCL_E_SUCCESS. Otherwise the method returns one of the WCL error codes.

The TransmitCommChar function is useful for sending an interrupt character (such as a CTRL+C) to a host system.

If the device is not transmitting, TransmitCommChar cannot be called repeatedly. Once TransmitCommChar places a character in the output buffer, the character must be transmitted before the function can be called again. If the previous character has not yet been sent, TransmitCommChar returns an error.