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Symbian OS Library

SYMBIAN OS V9.3

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How to paste from the clipboard

    // Create clipboard object
    TRAPD(ret,cb=CClipboard::NewForReadingL(fsSession));
    CleanupStack::PushL(cb);
                _LIT(KNoPaste,"Nothing to paste");
    if (ret!=KErrNone)
        {
        doShow(KNoPaste,NULL);
        User::Leave(ret);
        }
    // Get stream from store
    TStreamId stid = (cb->StreamDictionary()).At(KExampleClipUid);
    if (stid == KNullStreamId)
        {
        doShow(KNoPaste,NULL);
        User::Leave(0);
        }
    // Read stream
    RStoreReadStream stream;
    stream.OpenLC(cb->Store(),stid);
    stream >> *item;

  1. To attempt to retrieve data from the clipboard, first construct a CClipboard object and prepare it for reading using either NewForReadingL() or NewForReadingLC(). In this example, the construction of the CClipboard is executed within a TRAPD harness. This is not essential, but allows suitable text to be displayed if construction of CClipboard fails. Note, if the file associated with the clipboard's store does not exist, is corrupt or is in use, the resulting error is trapped inside NewForReadingL() and the function constructs an empty stream dictionary.

  2. This example is only interested in a stream which is the external representation of a particular type of object. It therefore looks in the stream dictionary for a streamid that matches the UID KExampleClipUid.

  3. If there is a suitable stream, it is opened and the item object is internalised from that stream.