PCWSTR vs LPWSTR

Question

It is my understanding (and please correct me if I\'m wrong) that the only difference between them is whether the string might be modified by the called function. (PCWSTR ,

Answer 1

A function taking a PCWSTR parameter can't use that parameter to modify the characters of the string, unlike a function that takes a LPWSTR parameter. Each character of the string is stored as WCHAR.

UnmanagedType.LPWStr is the right marshalling type for such a string.