internal ChangeNotifyLock(Message message)
{
IntPtr pidl;
IntPtr lockId = ShellNativeMethods.SHChangeNotification_Lock(
message.WParam, (int)message.LParam, out pidl, out _event);
try
{
Trace.TraceInformation("Message: {0}", (ShellObjectChangeTypes)_event);
var notifyStruct = pidl.MarshalAs<ShellNativeMethods.ShellNotifyStruct>();
Guid guid = new Guid(ShellIIDGuid.IShellItem2);
if (notifyStruct.item1 != IntPtr.Zero &&
(((ShellObjectChangeTypes)_event) & ShellObjectChangeTypes.SystemImageUpdate) == ShellObjectChangeTypes.None)
{
IShellItem2 nativeShellItem;
if (CoreErrorHelper.Succeeded(ShellNativeMethods.SHCreateItemFromIDList(
notifyStruct.item1, ref guid, out nativeShellItem)))
{
string name;
nativeShellItem.GetDisplayName(ShellNativeMethods.ShellItemDesignNameOptions.FileSystemPath,
out name);
ItemName = name;
Trace.TraceInformation("Item1: {0}", ItemName);
}
}
else
{
ImageIndex = notifyStruct.item1.ToInt32();
}
if (notifyStruct.item2 != IntPtr.Zero)
{
IShellItem2 nativeShellItem;
if (CoreErrorHelper.Succeeded(ShellNativeMethods.SHCreateItemFromIDList(
notifyStruct.item2, ref guid, out nativeShellItem)))
{
string name;
nativeShellItem.GetDisplayName(ShellNativeMethods.ShellItemDesignNameOptions.FileSystemPath,
out name);
ItemName2 = name;
Trace.TraceInformation("Item2: {0}", ItemName2);
}
}
}
finally
{
if (lockId != IntPtr.Zero)
{
ShellNativeMethods.SHChangeNotification_Unlock(lockId);
}
}
}
HResult IPreviewHandler.TranslateAccelerator(ref Message pmsg)
{
return _frame != null ? _frame.TranslateAccelerator(ref pmsg) : HResult.False;
}
internal WindowMessageEventArgs(Message msg)
{
Message = msg;
}
private static int WndProc(IntPtr hwnd, uint msg, IntPtr wparam, IntPtr lparam)
{
switch (msg)
{
case CreateWindowMessage:
lock (_crossThreadWindowLock)
{
_tempHandle = CreateWindow();
Monitor.Pulse(_crossThreadWindowLock);
}
break;
case (uint)WindowMessage.Destroy:
break;
default:
MessageListener listener;
if (_listeners.TryGetValue(hwnd, out listener))
{
Message message = new Message(hwnd, msg, wparam, lparam, 0, new NativePoint());
listener.MessageReceived.SafeRaise(listener, new WindowMessageEventArgs(message));
}
break;
}
return ShellObjectWatcherNativeMethods.DefWindowProc(hwnd, msg, wparam, lparam);
}
public WindowMessageEventArgs(Message msg)
{
Message = msg;
}