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connect
Starts communication with the communication box.
Syntax
- (int)connect: (NSString *)target timeout:(long)timeout myId:(NSString *)myId; |
Parameter
target
Specifies the method of connecting to the printer by a character string.
Specify the connection method using the following syntax.
<connection type>:<identifier>[<box ID>]
I/F |
Connection type |
Identifier |
Example |
||
---|---|---|---|---|---|
Wi-Fi/Ethernet |
|
|
|
To connect to the printer via SSL/TLS communication, specify TCPS in the connection type.
timeout
Specifies the maximum time (in milliseconds) to wait for communication with the printer to be established.
Value |
Description |
---|---|
Integer from 1000 to 300000 |
Maximum wait time before an error is returned (in milliseconds). |
EPOS2_PARAM_DEFAULT |
Specifies the default value (15000). |
myId
Specifies a member ID to identify the application itself in the communication box.
Return value
Error status |
Description |
---|---|
EPOS2_SUCCESS |
The function was executed successfully. |
EPOS2_ERR_PARAM |
An invalid parameter was passed. |
EPOS2_ERR_CONNECT |
Could not open the device. |
EPOS2_ERR_TIMEOUT |
Failed to communicate with the devices within the specified time. |
EPOS2_ERR_MEMORY |
Memory necessary for processing could not be allocated. |
EPOS2_ERR_FAILURE |
An unknown error occurred. |
EPOS2_ERR_PROCESSING |
Could not run the process. |
EPOS2_ERR_ALREADY_OPENED |
Communication box is already open. |
EPOS2_ERR_ALREADY_USED |
Specified member ID is already in use. |
EPOS2_ERR_BOX_COUNT_OVER |
The number of created communication boxes has exceeded the upper limit. |
EPOS2_ERR_BOX_CLIENT_OVER |
The number of members belong to the communication box has exceeded the upper limit. |
EPOS2_ERR_RECOVERY_FAILURE |
Failed to recover the printer. |
Supplementary explanation
- This API will succeed regardless of the connection status of the TM printer (master) and peripheral devices.
- Devices other than printers are exclusively locked.
- When EPOS2_ERR_RECOVERY_FAILURE is returned in the return value, restart the printer.
Quick Access
- Syntax
- Parameter
- Return value
- Supplementary explanation
- Introduction
- help
- Epos2CommBox class