AMX NETLINX PROGRAMMING LANGUAGE, Руководство пользователя

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NetLinx UniCode Functions
184 NetLinx Programming Language Reference Guide
All Unicode string literals must be wrapped in the _WC macro. Failing to wrap a Unicode string in the
_WC macro will result in a compiler error.
Storing a Unicode String
Unicode strings are stored in WIDECHAR arrays, similar to the way ASCII strings are stored in CHAR
arrays. To define a WIDECHAR constant or variable and initialize it using a Unicode string literal, use
the following syntax:
WIDECHAR wcMyString[] = _WC('My String')
Working with WIDECHAR arrays and Unicode Strings
Working with WIDECHAR arrays and Unicode strings is very similar to working with CHAR arrays and
ASCII strings. Most operation that can be performed on a CHAR array can be performed on a
WIDECHAR array. For instance, to assign a string to a variable use this syntax:
wcMyString = _WC('My String')
The string functions defined for CHAR arrays have been defined for WIDECHAR array for use in
Unicode programming. These functions allow you to operate on strings similar to the way you would
with CHAR array. For instance, to remove the first 3 characters from a WIDECHAR array and return
those characters as a WIDECHAR array, use WC_GET_BUFFER_STRING:
wcRemoved = WC_GET_BUFFER_STRING(wcMyString,3)
You will find that most other function work exactly as their CHAR counterpart do except they work on
and return WIDECHAR arrays. The list of Unicode compatible functions is:
WC_COMPARE_STRING
WC_GET_BUFFER_CHAR
WC_GET_BUFFER_STRING
WC_LEFT_STRING
WC_FIND_STRING
WC_LENGTH_STRING
WC_LOWER_STRING
WC_MAX_LENGTH_STRING
WC_MID_STRING
WC_REMOVE_STRING
WC_RIGHT_STRING
WC_SET_LENGTH_STRING
WC_UPPER_STRING
The "wc" prefix is Hungarian notation for widechar. This is simply a programming
convention and is completely optional. Hungarian notation helps you better identify
your variables while you are programming and is a general recommended standard.
For more information, see Wikipedia's Hungarian Notation page.