ulCodepage (ULONG) - input

A code page as returned from DosQueryCp. If the value is zero, the current process code page value is used to determine the returned Unicode string.

ucsCodepage (UniChar *) - output

A buffer for placing the Unicode string.

n (size_t) - input

Size of the ucsCodepage buffer in characters. This should be at least 12 Unicode characters.

result (int) - returns

ULS_INVALID

A code page number or buffer that is not valid was passed. The contents of ucsCodepage are undefined.
ULS_NOMEMORY
Insufficient storage space is available.
ULS_SUCCESS
The code page number was successfully converted to a Unicode string.
For a full list of error codes and the decimal and hexadecimal values of the error codes, see Error Codes.