Copies the specified number of characters to the destination string and returns Dest also as result. Dest must have enough room to store at least Count characters.
determines where (in S1) the first time one of the characters of S2 appear. The result is the length of a string part of S1 where none of the characters of S2 do appear (not counting the trailing #0 and starting with position 0 in S1).
This function does the same as StrRNScanW but uses S1 in reverse order. This means S1 points to the last character of a string, is traveresed reversely and terminates with a starting #0. This is useful for parsing strings stored in reversed macro buffers etc.