Casio IT-2000W manual UngetCommChar

UngetCommChar

int UngetCommChar(idComDev, chUnget)

int idComDev; /* Communication device */

char chUnget; /* Character to be placed in the queue */

The UngetCommChar function replaces the specified character in the reception queue. At the next read operation, this character will be read first.

<Parameter >

idComDev: Specifies the communication device which receives the characters. The OpenComm function returns this value.

chUnget: Specifies the characters to be placed in the reception queue.

<Return value >

Returns zero if the function is terminated normally. Otherwise it returns a value less than zero.

Note:

The UngetCommChar function cannot be called repeatedly. To make it possible to call this function again, it is necessary to read out characters in the queue.

Note on IrDA:

There are no particular use restrictions.

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