private IntPtr WinProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
switch (msg)
{
case Win32.WmChangecbchain:
if (wParam == _hWndNextViewer)
{
// clipboard viewer chain changed, need to fix it.
_hWndNextViewer = lParam;
}
else if (_hWndNextViewer != IntPtr.Zero)
{
// pass the message to the next viewer.
Win32.SendMessage(_hWndNextViewer, msg, wParam, lParam);
}
break;
case Win32.WmDrawclipboard:
// clipboard content changed
CopyPasteItem itm = CreateNewCopyPasteItem();
itm.AddToCopyPasteItemsList(_list);
// pass the message to the next viewer.
Win32.SendMessage(_hWndNextViewer, msg, wParam, lParam);
break;
}
return(IntPtr.Zero);
}
public CopyItemFromListCommand(bool canExecute, CopyPasteItem cpi)
{
_cpi = cpi;
_canExecute = canExecute;
}
public CopyPasteItem CreateNewCopyPasteItem()
{
CopyPasteItem itm = new CopyPasteItem(this);
return(itm);
}
