using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace TEST_DecodePng { public class InvalidPngHeadersFileException : Exception { public InvalidPngHeadersFileException() { //empty } public InvalidPngHeadersFileException(string message):base(message) { //empty } public InvalidPngHeadersFileException(string message, Exception inner):base(message,inner) { //empty } } }