System.Net.Http.WinHttpException sealed class WinHttpException : Win32Exception Documentation Code 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 WinHttpException CreateExceptionUsingError(int error, string nameOfCalledFunction) public static WinHttpException CreateExceptionUsingError(int error, string nameOfCalledFunction, Exception innerException) public static WinHttpException CreateExceptionUsingLastError(string nameOfCalledFunction) public static string GetErrorMessage(int error, string nameOfCalledFunction) public static void ThrowExceptionUsingLastError(string nameOfCalledFunction)