"Rolf Kalbermatter" <[EMAIL PROTECTED]> writes: > Go figure. To me it seems they messed up with the conversion from Widechar to > ASCII when needing to calculate the needed size. Unless they use some other > function than WideCharToMultiByte() it couldn't be for avoiding an extra > buffer > allocation since WideCharToMultiByte() specifically states that the input and > output buffer can not be the same pointer. Maybe that native NTDLL provides a > lower level Unicode -> ASCII conversion that does allow for overlapping > buffers.
No, returning twice the W size is the normal behavior when you don't want to retrieve the full W text but only its length. Since each W char can map to at most two A chars (at least with standard Windows codepages) doubling the size is an upper bound on the A buffer size, and doing it that way can avoid a lot of unnecessary work. -- Alexandre Julliard [EMAIL PROTECTED]
