get_error_textget_error_textGetErrorTextGetErrorText (Operator)

Name

get_error_textget_error_textGetErrorTextGetErrorText — Inquiry after the error text of a HALCON error number.

Signature

Description

The operator get_error_textget_error_textGetErrorTextGetErrorTextGetErrorText returns the error message for the corresponding HALCON error code. This is indeed the same text which will be given during an exception. The operator get_error_textget_error_textGetErrorTextGetErrorTextGetErrorText is especially useful if the error treatment is programmed by the users themselves (see also set_check(::'~give_error':) ).

Attention

Unknown error codes will trigger a standard message.

Execution Information

• Multithreading type: reentrant (runs in parallel with non-exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

Example (C)

Herror   err;
char       message[MAX_STRING];

set_check("~give_error");
err = send_region(region,socket);
set_check("give_error");
if (err != H_MSG_TRUE) {
get_error_text((Hlong)err,message);
  fprintf(stderr,"my error message: %s\n",message);
  exit(1);
}

Result

The operator get_error_textget_error_textGetErrorTextGetErrorTextGetErrorText returns the value 2 (H_MSG_TRUE), if the parameters are correct. Otherwise an exception will be raised.

Possible Predecessors

set_checkset_checkSetCheckSetCheckSetCheck

See also

set_checkset_checkSetCheckSetCheckSetCheck

Module

none