GetNumberFormat

The GetNumberFormat function formats a number string as a number string customized for a specified locale.

int GetNumberFormat(

LCID Locale,	// locale for which number string is to be formatted
DWORD dwFlags,	// bit flag that controls the function's operation
LPCTSTR lpValue,	// pointer to input number string
CONST NUMBERFMT *lpFormat,	// pointer to a formatting information structure
LPTSTR lpNumberStr,	// pointer to output buffer
int cchNumber	// size of output buffer
);

Parameters

Locale

Specifies the locale for which the number string is to be formatted. If lpFormat is NULL, the function formats the string according to the number format for this locale. If lpFormat is not NULL, the function uses the locale only for formatting information not specified in the NUMBERFMT structure (for example, the locale's string value for the negative sign).

This parameter can be a locale identifier created by the MAKELCID macro, or one of the following predefined values:

LOCALE_SYSTEM_DEFAULT	Default system locale.
LOCALE_USER_DEFAULT	Default user locale.

dwFlags

Contains a bit flag that controls the operation of the function. If lpFormat is non-NULL, this parameter must be zero.

If lpFormat is NULL, you can specify the LOCALE_NOUSEROVERRIDE flag to format the string using the system default number format for the specified locale; or you can specify zero to format the string using any user overrides to the locale's default number format

lpValue

Points to a null-terminated string containing the number string to format.

This string can only contain the following characters:

• Characters '0' through '9'

• One decimal point (dot) if the number is a floating-point value

• A minus sign in the first character position if the number is a negative value

All other characters are invalid. The function returns an error if the string pointed to by lpValue deviates from these rules.

lpFormat

Pointer to a NUMBERFMT structure that contains number formatting information. All members in the structure pointed to by lpFormat must contain appropriate values.

If lpFormat is NULL, the function uses the number format of the specified locale.

lpNumberStr

Points to a buffer to receive the formatted number string.

cchNumber

Specifies the size, in bytes (ANSI version) or characters (Unicode version), of the lpNumberStr buffer. If cchNumber is zero, the function returns the number of bytes or characters required to hold the formatted number string, and the buffer pointed to by lpNumberStr is not used.

Return Values

If the function succeeds, the return value is the number of bytes (ANSI version) or characters (Unicode version) written to the buffer pointed to by lpNumberStr, or if the cchNumber parameter is zero, the number of bytes or characters required to hold the formatted number string.

If the function fails, the return value is zero. To get extended error information, call GetLastError. GetLastError may return one of the following error codes:

ERROR_INSUFFICIENT_BUFFER
ERROR_INVALID FLAGS
ERROR_INVALID_PARAMETER

See Also

GetCurrencyFormat, NUMBERFMT

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