The Clipboard is the standard Windows method of transferring data between a source and a destination. It can also be very useful in OLE operations. With the advent of OLE, there are two Clipboard mechanisms in Windows. The standard Windows Clipboard API is still available, but it has been implemented by the OLE data transfer mechanism. OLE uniform data transfer (UDT) supports Cut, Copy, and Paste with the Clipboard and drag and drop.
The Clipboard is a system service shared by the entire Windows session, so it does not have a handle or class of its own. You manage the Clipboard through member functions of class CWnd.