namespace System.Net.Http { internal sealed class WinHttpException : Win32Exception { public WinHttpException(int error, string message); public WinHttpException(SerializationInfo info, StreamingContext context); public WinHttpException(int error, string message, Exception innerException); public static int ConvertErrorCodeToHR(int error); public static void ThrowExceptionUsingLastError(string nameOfCalledFunction); public static WinHttpException CreateExceptionUsingLastError(string nameOfCalledFunction); public static WinHttpException CreateExceptionUsingError(int error, string nameOfCalledFunction); public static WinHttpException CreateExceptionUsingError(int error, string nameOfCalledFunction, Exception innerException); public static string GetErrorMessage(int error, string nameOfCalledFunction); } }