Function name: CharUpper

Defined in : User32

Requirements : Windows NT 3.1 or later; Windows 95 or later

Declaration:

Declare Function CharUpper Lib "user32" Alias "CharUpperA" (ByVal lpsz As String) As String

Parameters:

* lpsz Pointer to a null-terminated string or specifies a single character. If the high-order word of this parameter is zero, the low-order word must contain a single character to be converted.

Returns:

If the operand is a character string, the function returns a pointer to the converted string. Since the string is converted in place, the return value is equal to lpsz. If the operand is a single character, the return value is a 32-bit value whose high-order word is zero, and low-order word contains the converted character. There is no indication of success or failure. Failure is rare.

Related functions:

Examples:

String Operations