CryptBinaryToString or CryptStringToBinary?

To reproduce this result from Wikipedia base64 article:

To base64 encode this string
"Input ends with: any carnal pleasure."
and get this result:
"YW55IGNhcm5hbCBwbGVhc3VyZS4="
Which function should I use?
I tried to assign the input string to a BYTE array and use 
CryptBinaryToStringA, but it returns a totally different string.
Thank you!
BOOL base64(char **tch)
{
	DWORD len = 0;

	BYTE byteArr[] = "Input ends with: any carnal pleasure.";
	DWORD BUFF_LEN = ARRAYSIZE(byteArr);

	// calculate the required buffer length
	res = CryptBinaryToStringA(byteArr, BUFF_LEN, 
							  CRYPT_STRING_BASE64 | CRYPT_STRING_NOCRLF,
							  NULL, &len);
	if (res == FALSE) {
		reportError(_T("allocateBuffer"), GetLastError());
		return FALSE;
	}
	// do it
	if(len == 0) {
		reportError(_T("length"), 0);
		return FALSE;
	}
	*tch = new char[len];
	res = CryptBinaryToStringA(byteArr, BUFF_LEN, 
							  CRYPT_STRING_BASE64 | CRYPT_STRING_NOCRLF,
							  *tch, &len);
	if (res == FALSE) {
		reportError(_T("encrypt"), GetLastError());
		return FALSE;
	}

	return TRUE;
}