public static extern string Pm_GetErrorText(PmError errnum);
 public MidiException(PmError errorType, string message, Exception innerException)
     : base(message, innerException)
 {
     error_type = errorType;
 }
 public MidiException(PmError errorType, string message)
     : this(errorType, message, null)
 {
 }
		public static extern string Pm_GetErrorText (PmError errnum);
		public MidiException (PmError errorType, string message, Exception innerException)
			: base (message, innerException)
		{
			error_type = errorType;
		}
		public MidiException (PmError errorType, string message)
			: this (errorType, message, null)
		{
		}