C / C++ / MFC

if ( !OpenClipboard() )
  {
     AfxMessageBox( "Cannot open the Clipboard" );
     return;
  }
  // Remove the current Clipboard contents
  if( !EmptyClipboard() )
  {
     AfxMessageBox( "Cannot empty the Clipboard" );
     return;
  }
  // ...
  // Get the currently selected data, hData handle to
  // global memory of data
  // ...
  // For the appropriate data formats...
  if ( ::SetClipboardData( CF_??, hData ) == NULL )
  {
     AfxMessageBox( "Unable to set Clipboard data" );
     CloseClipboard();
     return;
  }
  // ...
  CloseClipboard();