/// <summary>
/// WNDs the proc.
/// </summary>
/// <param name="hwnd">The HWND.</param>
/// <param name="msg">The MSG.</param>
/// <param name="wParam">The w parameter.</param>
/// <param name="lParam">The l parameter.</param>
/// <param name="handled">if set to <c>true</c> [handled].</param>
/// <returns>IntPtr.</returns>
private IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
// defined in winuser.h
const int WM_DRAWCLIPBOARD = 0x308;
const int WM_CHANGECBCHAIN = 0x030D;
switch (msg)
{
case WM_DRAWCLIPBOARD:
NativeMethods.SendMessage(_nextClipboardViewer, msg, wParam,
lParam);
var newItem = new TextClipboardItem
{
ClippedDate = DateTime.Now,
Content = Clipboard.GetText()
};
_textClipboardItems.Add(newItem);
_clipboardItemSubject.OnNext(newItem);
break;
case WM_CHANGECBCHAIN:
if (wParam == _nextClipboardViewer)
{
_nextClipboardViewer = lParam;
}
else
{
NativeMethods.SendMessage(_nextClipboardViewer, msg, wParam,
lParam);
}
break;
}
return(IntPtr.Zero);
}
/// <summary>
/// Initializes a new instance of the <see cref="ClipboardItemViewModel" /> class.
/// </summary>
/// <param name="textClipboardItem">The text clipboard item.</param>
public ClipboardItemViewModel(TextClipboardItem textClipboardItem)
{
Instance = textClipboardItem;
Preview = new string(textClipboardItem.Content.Take(250).ToArray());
}