What is the difference in calling the Win32 API function that have an A
character appended to the end as opposed to the W
character.
I know it means ASCII
and WIDE CHARACTER
or Unicode, but what is the difference in the output or the input?
For example, If I call GetDefaultCommConfigA, will it fill my COMMCONFIG structure with ASCII strings instead of WCHAR strings? (Or vice-versa for GetDefaultCommConfigW)
In other words, how do I know what Encoding the string is in, ASCII or UNICODE, it must be by the version of the function I call A
or W
? Correct?
I have found this question, but I don't think it answers my question.
The A
functions use Ansi (not ASCII) strings as input and output, and the W
functions use Unicode string instead (UCS-2 on NT4 and earlier, UTF-16 on W2K and later). Refer to MSDN for more details.