Platform SDK: MAPI |
The UlFromSzHex function converts a null-terminated string of hexadecimal digits into an unsigned long integer.
Note This function may not be supported in future versions of MAPI.
Header file: | MAPIUTIL.H |
Implemented by: | MAPI |
Called by: | Client applications and service providers |
ULONG UlFromSzHex( LPCTSTR lpsz );
UlFromSzHex returns an unsigned long integer. If the string does not begin with at least one hexadecimal digit, a binary zero is returned.
The UlFromSzHex function stops converting when it reaches the first character in the string that is not a hexadecimal digit. For example, given the string "5a", UlFromSzHex returns the integer value 90. Given the string "5g5h", the function returns the integer value 5. Given the string "g5h5", UlFromSzHex returns zero.
UlFromSzHex is sensitive to diacritical differences but allows both 'a' through 'f' and 'A' through 'F' for hexadecimal digits. Strings in the Unicode and DBCS formats are supported. The length limit on lpsz is in characters, not necessarily bytes.