commapi.cs

用C#实现的取得CellID和LAC的程序源代码！

		{
			if (FullFramework) 
			{
				return Convert.ToBoolean(WinCloseHandle(hPort));
			} 
			else 
			{
				return Convert.ToBoolean(CECloseHandle(hPort));
			}
		}

		internal static bool SetupComm(IntPtr hPort, UInt32 dwInQueue, UInt32 dwOutQueue)
		{
			if (FullFramework) 
			{
				return Convert.ToBoolean(WinSetupComm(hPort, dwInQueue, dwOutQueue));
			} 
			else 
			{
				return Convert.ToBoolean(CESetupComm(hPort, dwInQueue, dwOutQueue));
			}
		}

		internal static bool SetCommState(IntPtr hPort, DCB dcb) 
		{
			if (FullFramework) 
			{
				return Convert.ToBoolean(WinSetCommState(hPort, dcb));
			} 
			else 
			{
				return Convert.ToBoolean(CESetCommState(hPort, dcb));
			}
		}

		internal static bool GetCommState(IntPtr hPort, DCB dcb) 
		{
			if (FullFramework) 
			{
				return Convert.ToBoolean(WinGetCommState(hPort, dcb));
			} 
			else 
			{
				return Convert.ToBoolean(CEGetCommState(hPort, dcb));
			}
		}

		internal static bool SetCommTimeouts(IntPtr hPort, CommTimeouts timeouts) 
		{
			if (FullFramework) 
			{
				return Convert.ToBoolean(WinSetCommTimeouts(hPort, timeouts));
			} 
			else 
			{
				return Convert.ToBoolean(CESetCommTimeouts(hPort, timeouts));
			}
		}
		
		internal static bool EscapeCommFunction(IntPtr hPort, CommEscapes escape)
		{
			if (FullFramework) 
			{
				return Convert.ToBoolean(WinEscapeCommFunction(hPort, (uint)escape));
			} 
			else 
			{
				return Convert.ToBoolean(CEEscapeCommFunction(hPort, (uint)escape));
			}
		}

		internal static IntPtr CreateEvent(bool bManualReset, bool bInitialState, string lpName)
		{
			if (FullFramework) 
			{
				return WinCreateEvent(IntPtr.Zero, Convert.ToInt32(bManualReset), Convert.ToInt32(bInitialState), lpName);
			} 
			else 
			{
				return CECreateEvent(IntPtr.Zero, Convert.ToInt32(bManualReset), Convert.ToInt32(bInitialState), lpName);
			}
		}

		internal static bool SetEvent(IntPtr hEvent)
		{
			if (FullFramework) 
			{
				return Convert.ToBoolean(WinEventModify(hEvent, (uint)EventFlags.EVENT_SET));
			} 
			else 
			{
				return Convert.ToBoolean(CEEventModify(hEvent, (uint)EventFlags.EVENT_SET));
			}
		}

		internal static bool ResetEvent(IntPtr hEvent)
		{
			if (FullFramework) 
			{
				return Convert.ToBoolean(WinEventModify(hEvent, (uint)EventFlags.EVENT_RESET));
			} 
			else 
			{
				return Convert.ToBoolean(CEEventModify(hEvent, (uint)EventFlags.EVENT_RESET));
			}
		}

		internal static bool PulseEvent(IntPtr hEvent)
		{
			if (FullFramework) 
			{
				return Convert.ToBoolean(WinEventModify(hEvent, (uint)EventFlags.EVENT_PULSE));
			} 
			else 
			{
				return Convert.ToBoolean(CEEventModify(hEvent, (uint)EventFlags.EVENT_PULSE));
			}
		}

		internal static int WaitForSingleObject(IntPtr hHandle, uint dwMilliseconds)
		{
			if (FullFramework) 
			{
				return WinWaitForSingleObject(hHandle, dwMilliseconds);
			} 
			else 
			{
				return CEWaitForSingleObject(hHandle, dwMilliseconds);
			}
		}

		#region Helper methods
		internal static bool FullFramework
		{
			get{return Environment.OSVersion.Platform == PlatformID.Win32Windows;}
		}
		#endregion

		#region API Constants
		internal const Int32 INVALID_HANDLE_VALUE = -1;
		internal const UInt32 OPEN_EXISTING = 3;
		internal const UInt32 GENERIC_READ = 0x80000000;
		internal const UInt32 GENERIC_WRITE = 0x40000000;
		#endregion

		#region Windows CE API imports

		[DllImport("coredll.dll", EntryPoint="WaitForSingleObject", SetLastError = true)]
		private static extern int CEWaitForSingleObject(IntPtr hHandle, uint dwMilliseconds); 

		[DllImport("coredll.dll", EntryPoint="EventModify", SetLastError = true)]
		private static extern int CEEventModify(IntPtr hEvent, uint function); 

		[DllImport("coredll.dll", EntryPoint="CreateEvent", SetLastError = true)]
		private static extern IntPtr CECreateEvent(IntPtr lpEventAttributes, int bManualReset, int bInitialState, string lpName); 

		[DllImport("coredll.dll", EntryPoint="EscapeCommFunction", SetLastError = true)]
		private static extern int CEEscapeCommFunction(IntPtr hFile, UInt32 dwFunc);

		[DllImport("coredll.dll", EntryPoint="SetCommTimeouts", SetLastError = true)]
		private static extern int CESetCommTimeouts(IntPtr hFile, CommTimeouts timeouts);

		[DllImport("coredll.dll", EntryPoint="GetCommState", SetLastError = true)]
		private static extern int CEGetCommState(IntPtr hFile, DCB dcb);

		[DllImport("coredll.dll", EntryPoint="SetCommState", SetLastError = true)]
		private static extern int CESetCommState(IntPtr hFile, DCB dcb);

		[DllImport("coredll.dll", EntryPoint="SetupComm", SetLastError = true)]
		private static extern int CESetupComm(IntPtr hFile, UInt32 dwInQueue, UInt32 dwOutQueue);

		[DllImport("coredll.dll", EntryPoint="CloseHandle", SetLastError = true)]
		private static extern int CECloseHandle(IntPtr hObject);

		[DllImport("coredll.dll", EntryPoint="WriteFile", SetLastError = true)]
		private static extern int CEWriteFile(IntPtr hFile, byte[] lpBuffer, UInt32 nNumberOfBytesToRead, ref Int32 lpNumberOfBytesRead, IntPtr lpOverlapped);

		[DllImport("coredll.dll", EntryPoint="ReadFile", SetLastError = true)]
		private static extern int CEReadFile(IntPtr hFile, byte[] lpBuffer, UInt32 nNumberOfBytesToRead, ref Int32 lpNumberOfBytesRead, IntPtr lpOverlapped);

		[DllImport("coredll.dll", EntryPoint="SetCommMask", SetLastError = true)]
		private static extern int CESetCommMask(IntPtr handle, CommEventFlags dwEvtMask);

		[DllImport("coredll.dll", EntryPoint="GetCommModemStatus", SetLastError = true)]
		extern private static int CEGetCommModemStatus(IntPtr hFile, ref uint lpModemStat);

		[DllImport("coredll.dll", EntryPoint="ClearCommError", SetLastError = true)]
		extern private static int CEClearCommError(IntPtr hFile, ref CommErrorFlags lpErrors, CommStat lpStat);

		[DllImport("coredll.dll", EntryPoint="WaitCommEvent", SetLastError = true)]
		private static extern int CEWaitCommEvent(IntPtr hFile, ref CommEventFlags lpEvtMask, IntPtr lpOverlapped);
		
		[DllImport("coredll.dll", EntryPoint="CreateFileW", SetLastError = true)]
		private static extern IntPtr CECreateFileW(
			String lpFileName, UInt32 dwDesiredAccess, UInt32 dwShareMode,
			IntPtr lpSecurityAttributes, UInt32 dwCreationDisposition, UInt32 dwFlagsAndAttributes,
			IntPtr hTemplateFile);

		#endregion

		#region Desktop Windows API imports

		[DllImport("coredll.dll", EntryPoint="WaitForSingleObject", SetLastError = true)]
		private static extern int WinWaitForSingleObject(IntPtr hHandle, uint dwMilliseconds); 

		[DllImport("coredll.dll", EntryPoint="EventModify", SetLastError = true)]
		private static extern int WinEventModify(IntPtr hEvent, uint function); 

		[DllImport("kernel32.dll", EntryPoint="CreateEvent", SetLastError = true)]
		private static extern IntPtr WinCreateEvent(IntPtr lpEventAttributes, int bManualReset, int bInitialState, string lpName); 

		[DllImport("kernel32.dll", EntryPoint="EscapeCommFunction", SetLastError = true)]
		private static extern int WinEscapeCommFunction(IntPtr hFile, UInt32 dwFunc);

		[DllImport("kernel32.dll", EntryPoint="SetCommTimeouts", SetLastError = true)]
		private static extern int WinSetCommTimeouts(IntPtr hFile, CommTimeouts timeouts);

		[DllImport("kernel32.dll", EntryPoint="GetCommState", SetLastError = true)]
		private static extern int WinGetCommState(IntPtr hFile, DCB dcb);

		[DllImport("kernel32.dll", EntryPoint="SetCommState", SetLastError = true)]
		private static extern int WinSetCommState(IntPtr hFile, DCB dcb);

		[DllImport("kernel32.dll", EntryPoint="SetupComm", SetLastError = true)]
		private static extern int WinSetupComm(IntPtr hFile, UInt32 dwInQueue, UInt32 dwOutQueue);

		[DllImport("kernel32.dll", EntryPoint="CloseHandle", SetLastError = true)]
		private static extern int WinCloseHandle(IntPtr hObject);

		[DllImport("kernel32.dll", EntryPoint="WriteFile", SetLastError = true)]
		extern private static int WinWriteFile(IntPtr hFile, byte[] lpBuffer, UInt32 nNumberOfBytesToRead, ref Int32 lpNumberOfBytesRead, IntPtr lpOverlapped);

		[DllImport("kernel32.dll", EntryPoint="ReadFile", SetLastError = true)]
		private static extern int WinReadFile(IntPtr hFile, byte[] lpBuffer, UInt32 nNumberOfBytesToRead, ref Int32 lpNumberOfBytesRead, IntPtr lpOverlapped);

		[DllImport("kernel32.dll", EntryPoint="SetCommMask", SetLastError = true)]
		private static extern int WinSetCommMask(IntPtr handle, CommEventFlags dwEvtMask);

		[DllImport("kernel32.dll")]
		extern private static int WinGetCommModemStatus(IntPtr hFile, ref uint lpModemStat);

		[DllImport("kernel32.dll", EntryPoint="ClearCommError", SetLastError = true)]
		extern private static int WinClearCommError(IntPtr hFile, ref CommErrorFlags lpErrors, CommStat lpStat);

		[DllImport("kernel32.dll", EntryPoint="CreateFileW", SetLastError = true, CharSet = CharSet.Unicode)]
		private static extern IntPtr WinCreateFileW(String lpFileName, UInt32 dwDesiredAccess, UInt32 dwShareMode,
			IntPtr lpSecurityAttributes, UInt32 dwCreationDisposition, UInt32 dwFlagsAndAttributes,
			IntPtr hTemplateFile);

		[DllImport("kernel32.dll", EntryPoint="WaitCommEvent", SetLastError = true)]
		private static extern int WinWaitCommEvent(IntPtr hFile, ref CommEventFlags lpEvtMask, IntPtr lpOverlapped);


		#endregion
	}
}