Пишем под ТСД. Подключение сканера штрихкода, как компонент формы

public const UInt32 SPI_GETPLATFORMTYPE = 257;
[DllImport("coredll")]
public extern static Boolean SystemParametersInfo(
	UInt32 uiAction,
	UInt32 uiParam,
	StringBuilder pvParam,
	UInt32 fWinIni);

public static String GetPlatformType()
{
	StringBuilder sb = new StringBuilder(255);
	if(Environment.OSVersion.Platform == PlatformID.Win32NT)
		return "WIN32";//NativeMethods.SystemParametersInfoWin32(NativeMethods.SPI_GETPLATFORMTYPE, (UInt32)sb.Capacity, sb, 0);
	else
		NativeMethods.SystemParametersInfo(NativeMethods.SPI_GETPLATFORMTYPE, (UInt32)sb.Capacity, sb, 0);

	String platType = sb.ToString();
	switch(platType)
	{
		case "PocketPC":
			return "PPC";
		case "Windows CE":
			return "WCE";
		case "Phoenix"://Casio IT-600
			return "Phoenix";
		default:
			return platType;
	}
}

[DllImport("Coredll")]

public extern static Boolean QueryInstructionSet(
	UInt32 dwInstructionSet,
	out CpuInstructionSet CurrentInstructionSet
	);

public enum CpuInstructionSet
{
	X86 = Constant.Processor.PROCESSOR_X86_32BIT_INSTRUCTION,
	SH3 = Constant.Processor.PROCESSOR_HITACHI_SH3_INSTRUCTION,
	SH4 = Constant.Processor.PROCESSOR_HITACHI_SH4_INSTRUCTION,
	MIPSV4 = Constant.Processor.PROCESSOR_MIPS_MIPSIV_INSTRUCTION,
	MIPSV4_FP = Constant.Processor.PROCESSOR_MIPS_MIPSIVFP_INSTRUCTION,
	MIPSVII = Constant.Processor.PROCESSOR_MIPS_MIPSII_INSTRUCTION,
	MIPSVII_FP = Constant.Processor.PROCESSOR_MIPS_MIPSIIFP_INSTRUCTION,
	MIPS16 = Constant.Processor.PROCESSOR_MIPS_MIPS16_INSTRUCTION,
	ARMV4 = Constant.Processor.PROCESSOR_ARM_V4_INSTRUCTION,
	ARMV4T = Constant.Processor.PROCESSOR_ARM_V4T_INSTRUCTION,
	ARMV4I =Constant.Processor.PROCESSOR_ARM_V4I_INSTRUCTION,
	ARMV4FP = Constant.Processor.PROCESSOR_ARM_V4FP_INSTRUCTION,
	ARMV4IFP = Constant.Processor.PROCESSOR_ARM_V4IFP_INSTRUCTION,
	ARMV4TFP = Constant.Processor.PROCESSOR_ARM_V4TFP_INSTRUCTION,
}

internal struct SYSTEM_INFO
{
	public UInt16 wProcessorArchitecture;
	public UInt16 wReserved;
	public UInt32 dwPageSize;
	public Int32 lpMinimumApplicationAddress;
	public Int32 lpMaximumApplicationAddress;
	public UInt32 dwActiveProcessorMask;
	public UInt32 dwNumberOfProcessors;
	public UInt32 dwProcessorType;
	public UInt32 dwAllocationGranularity;
	public UInt16 wProcessorLevel;
	public UInt16 wProcessorRevision;
}

[DllImport("Coredll")]
public extern static void GetSystemInfo(ref SYSTEM_INFO SystemInfo);

[DllImport("Kernel32.dll", EntryPoint = "GetSystemInfo")]
public extern static void GetSystemInfoWin32(ref SYSTEM_INFO SystemInfo);

public static String GetInstructionSet()
{
	CpuInstructionSet iset = CpuInstructionSet.X86;
	try
	{
		if(Environment.OSVersion.Platform == PlatformID.Win32NT)
			return iset.ToString();
		else
			NativeMethods.QueryInstructionSet(0, out iset);
	}
	catch(MissingMethodException)
	{
		SYSTEM_INFO si = new SYSTEM_INFO();
		if(Environment.OSVersion.Platform == PlatformID.Win32NT)
			NativeMethods.GetSystemInfoWin32(ref si);
		else
			NativeMethods.GetSystemInfo(ref si);
		switch(si.wProcessorArchitecture)
		{
			case Constant.Processor.Architecture.PROCESSOR_ARCHITECTURE_ARM:
				return CpuInstructionSet.ARMV4.ToString();
			case Constant.Processor.Architecture.PROCESSOR_ARCHITECTURE_SHX:
				return CpuInstructionSet.SH3.ToString();
			case Constant.Processor.Architecture.PROCESSOR_ARCHITECTURE_INTEL:
				return CpuInstructionSet.X86.ToString();
			case Constant.Processor.Architecture.PROCESSOR_ARCHITECTURE_MIPS:
				return CpuInstructionSet.MIPSV4.ToString();
			default:
				return "Unkown_"+si.wProcessorArchitecture.ToString();
		}
	}

	return iset.ToString();
}