private static WIM_MSG_RETURN MessageCallback(WIM_MSG dwMessageId, IntPtr wParam, IntPtr lParam, IntPtr pvUserData)
{
var ret = WIM_MSG_RETURN.WIM_MSG_SUCCESS;
if (_sinks.TryGetValue(pvUserData, out var file))
{
var handler = file.Event;
if (handler != null)
{
WimFileEventArgs e;
switch (dwMessageId)
{
case WIM_MSG.WIM_MSG_PROCESS:
e = new WimFileProcessEventArgs(file, dwMessageId, wParam, lParam);
break;
case WIM_MSG.WIM_MSG_ERROR:
e = new WimFileErrorEventArgs(file, dwMessageId, wParam, lParam);
break;
case WIM_MSG.WIM_MSG_PROGRESS:
e = new WimFileProgressEventArgs(dwMessageId, wParam, lParam);
break;
case WIM_MSG.WIM_MSG_SETPOS:
e = new WimFileSetPosEventArgs(dwMessageId, wParam, lParam);
break;
case WIM_MSG.WIM_MSG_SETRANGE:
e = new WimFileSetRangeEventArgs(dwMessageId, wParam, lParam);
break;
default:
e = new WimFileEventArgs(dwMessageId, wParam, lParam);
break;
}
if (Debugger.IsAttached)
{
handler(file, e);
}
else
{
try
{
handler(file, e);
}
catch (Exception exception)
{
Debug.WriteLine("An error occurred in the Event handler: " + exception);
}
}
ret = e.ReturnValue;
}
}
return(ret);
}
internal WimFileErrorEventArgs(WimFile file, WIM_MSG message, IntPtr wParam, IntPtr lParam)
: base(message, wParam, lParam)
{
Path = Marshal.PtrToStringUni(wParam);
RelativePath = file.GetRelativePath(Path);
ErrorCode = lParam.ToInt32();
if (ErrorCode != 0)
{
ErrorMessage = new Win32Exception(ErrorCode).Message;
}
}
internal WimFileProgressEventArgs(WIM_MSG message, IntPtr wParam, IntPtr lParam)
: base(message, wParam, lParam)
{
Percent = wParam.ToInt32();
MillisecondsRemaining = LParam.ToInt32();
}
internal WimFileSetRangeEventArgs(WIM_MSG message, IntPtr wParam, IntPtr lParam)
: base(message, wParam, lParam)
{
FileCount = lParam.ToInt32();
}
internal WimFileProcessEventArgs(WimFile file, WIM_MSG message, IntPtr wParam, IntPtr lParam)
: base(message, wParam, lParam)
{
Path = Marshal.PtrToStringUni(wParam);
RelativePath = file.GetRelativePath(Path);
}
internal WimFileEventArgs(WIM_MSG message, IntPtr wParam, IntPtr lParam)
{
Message = message;
WParam = wParam;
LParam = lParam;
}