Question

I have a string named aDrive = "H:/"

i want to convert this string into WCHAR so used like below

WCHAR Drive[4];

aDrive.toWCharArray ( Drive ) ;

when i printed it qDebug ()<<QString::fromWCharArray ( Drive );

it displays like "H:/???"

why i get the starnge charracters at the end..

Thank you for your time

Answer 1

QString::toWCharArray() does not zero-terminate the array. Without an explicit array length with QString::fromWCharArray(), it will read wchars until a zero wchar is read. In this case, you’ll have to add the zero wchar yourself at the end, or use explicit length parameter with QString::fromWCharArray().

As always, the documentation is your friend.