Rockwell-automation 2727-MRSDK MobileView Terminals Software Developme Instrukcja Użytkownika Pobierz pdf (Strona 26)

Publication 2727-UM004B-EN-P - February 2004

4-2 SDK (Software Development Kit) for MobileView Terminals

Error Handling

Rules

Functions expecting an input parameter verify that the parameter is

inside the range and has the correct data type.

• If a parameter is located outside the range the function returns

INVALID_ARG_RANGE.

• Functions expecting a pointer for output data as a parameter

verify that the pointer is valid (for example, the pointer must not

be NULL). If the pointer is invalid, the function returns

INVA LID_ ARG _IN VALI D_PT R.

• Functions with a string as a parameter verify that the pointer to

the string is valid. If the pointer is invalid, the function returns

INVALID_ARG_INVALID_STR_PTR.

Error Codes

Start and Close Functions

This section describes functions that are required to start and close the

SDK dll.

Table 4.2

SUCCESS 0

OK 0

FAIL 1

INVALID_ARG_RANGE 2

INVALID_ARG_PTR 3

INVALID_ARG_STR_PTR 4

INVALID_ARG_UNKNWN_COOKIE 5

INVALID_ARG_UNKNWN_DOMAINS 6

INVALID_NOT_CALIBRATED 7

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 49 50

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Rockwell-automation 2727-MRSDK MobileView Terminals Software Developme Instrukcja Użytkownika Strona 26