C++代码如何翻译成C#代码？？？

emvtech 2009-06-05 11:02:12

谁能帮我把下面的C++代码如何翻译成C#代码，代码功能是读出指定硬件的VID ,PID，下面是VC实现的代码，C#我不熟悉

代码谁能给我翻译一下
#include <stdio.h>
#include <windows.h>
#include <setupapi.h>
#include <devguid.h>
#include <regstr.h>

int main( int argc, char *argv[ ], char *envp[ ] )
{
HDEVINFO hDevInfo;
GUID guid = { 0x50DD5230,0xBA8A,0x11D1,0xBF,0x5D,0x00,0x00,0xF8,0x05,0xF5,0x30};//枚举当前USB设备
SP_DEVINFO_DATA DeviceInfoData;
DWORD i;

// Create a HDEVINFO with all present devices.
hDevInfo = SetupDiGetClassDevs( &guid,
0, // Enumerator
0,
DIGCF_PRESENT | DIGCF_INTERFACEDEVICE);

if (hDevInfo == INVALID_HANDLE_VALUE)
{
// Insert error handling here.
return 1;
}

// Enumerate through all devices in Set.

DeviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
for (i=0;SetupDiEnumDeviceInfo(hDevInfo,i,
&DeviceInfoData);i++)
{
DWORD DataT;
LPTSTR buffer = NULL;
DWORD buffersize = 0;

//
// Call function with null to begin with,
// then use the returned buffer size
// to Alloc the buffer. Keep calling until
// success or an unknown failure.
//
while (!SetupDiGetDeviceRegistryProperty(
hDevInfo,
&DeviceInfoData,
SPDRP_HARDWAREID,
&DataT,
(PBYTE)buffer,
buffersize,
&buffersize))
{
if (GetLastError() ==
ERROR_INSUFFICIENT_BUFFER)
{
// Change the buffer size.
if (buffer) LocalFree(buffer);
buffer = (LPTSTR)LocalAlloc(LPTR,buffersize);
}
else
{
// Insert error handling here.
break;
}
}

printf("Result:[%s]\n",buffer);

if (buffer) LocalFree(buffer);
}

if ( GetLastError()!=NO_ERROR &&
GetLastError()!=ERROR_NO_MORE_ITEMS )
{
// Insert error handling here.
return 1;
}

// Cleanup
SetupDiDestroyDeviceInfoList(hDevInfo);

return 0;
}

...全文