www.pudn.com > SharpUSBlib20041208.zip > USBException.cs

// UsbException.cs 
// Copyright (C) 2004 Mike Krueger 
//  
// This program is free software. It is dual licensed under GNU GPL and GNU LGPL. 
// See COPYING_GPL.txt and COPYING_LGPL.txt for details. 
// 
using System; 
using ICSharpCode.USBlib.Internal; 
 
namespace ICSharpCode.USBlib 
{ 
	/// 
 
	/// Description of UsbException. 
	/// 
 
	[Serializable] 
	public class UsbException : System.Exception 
	{ 
		public UsbException() 
		{ 
		} 
		 
		public UsbException(string msg) : base(msg) 
		{ 
		} 
		 
		public override string ToString() 
		{ 
			return "UsbException: " + base.Message; 
		} 
	} 
	 
	[Serializable] 
	public class DeviceAlreadyOpenUsbException : UsbException 
	{ 
		public DeviceAlreadyOpenUsbException() : base("USB device is already open.") 
		{ 
		} 
	} 
	 
	[Serializable] 
	public class DeviceNotOpenUsbException : UsbException 
	{ 
		public DeviceNotOpenUsbException() : base("USB device is not open.") 
		{ 
		} 
	} 
	 
	[Serializable] 
	public class MethodCallUsbException : UsbException 
	{ 
		string method; 
		int    returnCode; 
		 
		public string Method { 
			get { 
				return method; 
			} 
		} 
		 
		public int ReturnCode { 
			get { 
				return returnCode; 
			} 
		} 
		 
		public MethodCallUsbException() : this(String.Empty, 0) 
		{ 
		} 
		 
		public MethodCallUsbException(string method, int returnCode) : base(NativeMethods.usb_strerror()) 
		{ 
			this.method     = method; 
			this.returnCode = returnCode; 
		} 
			 
		public override string ToString() 
		{ 
			return "Got exception : " + base.Message + " while calling " + method +" return code: " + returnCode; 
		} 
	} 
}