Symbian programming Summary-basics-Descriptor (2)-conversion between TDesC8 and TDesC16

1. Use Copy

_ LIT8 (KTestStr, "This is a string ");
TBufC8 <50> buf (KTestStr );

TBuf <100> newBuf;
NewBuf. Copy (buf );

TBuf8 <50> newBuf1;
NewBuf1.Copy (newBuf );

 

2. Use the CCnvCharacterSetConverter class

_ LIT8 (KTestStr, "This is a String" n ");
TBufC8 <50> buf (KTestStr );

CCnvCharacterSetConverter * conv = CCnvCharacterSetConverter: NewL ();

CleanupStack: PushL (conv );

RFs fs;
User: LeaveIfError (fs. Connect ());

If (conv-> PrepareToConvertToOrFromL (KCharacterSetIdentifierAscii, fs )! = CCnvCharacterSetConverter: EAvailable)
{
User: Leave (KErrNotSupported );
}

HBufC * str = HBufC: NewL (buf. Length ());
CleanupStack: PushL (str );

TPtr = str-> Des ();
TInt state = CCnvCharacterSetConverter: KStateDefault;

If (conv-> ConvertToUnicode (ptr, buf, state) = CCnvCharacterSetConverter: EErrorIllFormedInput)
{
User: Leave (KErrArgument );
}

Fs. Close ();
Console-> Write (ptr );

CleanupStack: PopAndDestroy (2); // str, conv