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CharUpperBuff info  Overview  Group

The CharUpperBuff function converts lowercase characters in a buffer to uppercase characters. The function converts the characters in place.

DWORD CharUpperBuff(

    LPTSTR lpsz,

// pointer to buffer containing characters to process

    DWORD cchLength 

// number of characters to process

   );

Parameters

lpsz
Pointer to a buffer containing one or more characters to process.
cchLength
Specifies the size, in bytes (ANSI version) or characters (Unicode version), of the buffer pointed to by lpsz.

The function examines each character, and converts lowercase characters to uppercase characters. The function examines the number of bytes or characters indicated by cchLength, even if one or more characters are null characters.

Return Values

The return value is the number of bytes (ANSI version) or characters (Unicode version) processed.

For example, if CharUpperBuff("Zenith of API Sets", 10) succeeds, the return value is 10.

Remarks

Windows NT: To make the conversion, the function uses the language driver for the current language selected by the user at setup or by using the Control Panel. If no language has been selected, Windows completes the conversion by using internal default mapping. The conversion is made based on the code page associated with the process locale.

Windows 95: The function makes the conversion based on the information associated with the user's default locale, which is the locale selected by the user at setup or by using the Control Panel. Windows 95 does not have language drivers.

See Also

CharLower, CharLowerBuff, CharUpper 

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