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POS/Mobile Printer

Rev. 1.00

- 24 -

3-12 DirectIO

Send and read the user-defined data.

int DirectIO(char* writeData, int writeLen, char* readData, int* readLen,

unsigned int mTimeout)

[Parameters]

* char* writeData,

[in] Data to be sent to the printer

* int writeLen

[in] Size of data to be sent to the printer

write does not function if 0 is entered to writeData for NULL, writeLen.

* char* readData,

[in] Data to be sent to the printer

* int* readLen

[in] Read the size of the data to be read by the caller.

read does not function if 0 is entered to readData for NULL, readLen.

* unsigned int mTimeout

[in] Waiting time before reading the data. Even if no data has been read, it returns after

the set amount of time. If set to 0, it waits until there is incoming data.

[Return Values]

Constant

Value

Description

SUCCESS

The function is successful.

WRITE_ERROR

-105

Data transmission failed.

READ_TIMEOUT

-127

It timed out before reading the data.

* Example

char cmd[3] = { 0x10, 0x04, 0x01};

char readBuf[20] = {0x00,};

int readLen;

ConnectToPrinter(………..);

DirectIO(cmd, sizeof(cmd), readBuf, &readLen, 0);

……

BIXOLON SRP-270 Reference Guide

Other manuals for BIXOLON SRP-270