_mbctombb, _mbctombb_l


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The latest version of this topic can be found at _mbctombb, _mbctombb_l.

Converts a double-byte multibyte character to a corresponding single-byte multibyte character.

System_CAPS_ICON_important.jpg Important

This API cannot be used in applications that execute in the Windows Runtime. For more information, see CRT functions not supported with /ZW.

unsigned int _mbctombb(  
   unsigned int c   
unsigned int _mbctombb_l(  
   unsigned int c,  
   _locale_t locale  


Multibyte character to convert.

Locale to use.

If successful, _mbctombb and _mbctombb_lreturns the single-byte character that corresponds to c; otherwise it returns c.

The _mbctombb and _mbctombb_lfunctions convert a given multibyte character to a corresponding single-byte multibyte character. Characters must correspond to single-byte characters within the range 0x20 – 0x7E or 0xA1 – 0xDF to be converted.

The output value is affected by the setting of the LC_CTYPE category setting of the locale; see setlocale for more information. The version of this function without the _l suffix uses the current locale for this locale-dependent behavior; the version with the _l suffix is identical except that it use the locale parameter passed in instead. For more information, see Locale.

In previous versions, _mbctombb was called zentohan. Use _mbctombb instead.

RoutineRequired header

For more compatibility information, see Compatibility.

Not applicable. To call the standard C function, use PInvoke. For more information, see Platform Invoke Examples.

Data Conversion
_mbbtombc, _mbbtombc_l
_mbcjistojms, _mbcjistojms_l, _mbcjmstojis, _mbcjmstojis_l
_mbctohira, _mbctohira_l, _mbctokata, _mbctokata_l
_mbctolower, _mbctolower_l, _mbctoupper, _mbctoupper_l