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IS_SURROGATE_PAIR macro

Determines if the specified code units form a UTF-16 surrogate pair.

Syntax


bool IS_SURROGATE_PAIR(
   WCHAR hs,
   WCHAR ls
);

Parameters

hs

UTF-16 code unit to test for a high surrogate value. The range for a high UTF-16 code unit is 0xd800 to 0xdbff, inclusive.

ls

UTF-16 code unit to test for a low surrogate value. The range for a low UTF-16 code unit is 0xdc00 to 0xdfff, inclusive.

Return value

Returns TRUE if successful or FALSE otherwise.

Remarks

For this macro to succeed, the hs value must be a high UTF-16 code unit, and the ls value must be a low UTF-16 code unit.

Requirements

Minimum supported client

Windows 2000 Professional [desktop apps only]

Minimum supported server

Windows 2000 Server [desktop apps only]

Header

Winnls.h (include Windows.h)

See also

National Language Support
National Language Support Macros
Surrogates and Supplementary Characters
IS_HIGH_SURROGATE
IS_LOW_SURROGATE

 

 

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