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OpenComm             Open Communications Device

short OpenComm(lpComName, nInQueue, nOutQueue)
LPSTR lpComName; /* COM1, LPT1 etc. */
int nInQueue; /* Size of receive queue */
int nOutQueue; /* Size of transmit queue */

Returns:    ID (treat as a handle) or negative error value:

        |------------------------------------------|
        | IE_BADID     Invalid or unsupported id   |
        | IE_BAUDRATE  Unsupported BaudRate        |
        | IE_BYTESIZE  Illegal Byte Size           |
        | IE_DEFAULT   Error in default parameters |
        | IE_HARDWARE  Hardware Not Present        |
        | IE_MEMORY    Unable to allocate queues   |
        | IE_NOPEN     Device Not Open             |
        | IE_OPEN      Device Already Open         |
        +------------------------------------------+