COMM-DRV/Lib: TransmitBufferSize() Returns transmit buffer size

Description-

Returns transmit buffer size.

Syntax-

count = TransmitBufferSize(port);

On Entry-

int port;

Port previously opened with InitializePort() or OpenComPort().

On Exit-

int count;

Transmit buffer size.

else

-1 If port was not initialized.

See Also-

BytesInTransmitBuffer()
IsTransmitBufferEmpty()
SpaceInTransmitBuffer()

Example-

#include "comm.h"

int count;
int port=0;

if ((count = TransmitBufferSize(port)) == -1)
   {
   printf("Port was not initialized\n");

   /* Take remedial action */
   }
 else
    printf("Number of bytes =>%d\n",count);