问如何使用WinUSB？

EN

#include "stdafx.h"
#include <SetupAPI.h>
#include <Hidsdi.h> 
#include <devguid.h> 
#include <winusb.h>
#include <usb.h>
#pragma comment(lib, "hid.lib")
#pragma comment(lib, "setupapi.lib")
#pragma comment(lib, "winusb.lib")
#include <iUString.h> 


iString<char> DevicePath;
bool                    WinusbHandle_Open=false;
bool                    DeviceHandle_Open = false;
WINUSB_INTERFACE_HANDLE WinusbHandle;
HANDLE                  DeviceHandle;
UCHAR usb_out_buffer[64];
DEFINE_GUID(GUID_DEVCLASS_WINUSB, 0x88bae032L, 0x5a81, 0x49f0, 0xbc, 0x3d, 0xa4, 0xff, 0x13, 0x82, 0x16, 0xd6);
DEFINE_GUID(GUID_DEVCLASS_STL, 0xf177724dL, 0x74d3, 0x430e, 0x86, 0xb5, 0xf0, 0x36, 0x89, 0x10, 0xeb, 0x23);
GUID winusb_guid;
GUID stl_guid;

bool connectusb();
void  disconnectusb();




int main()
{
    DWORD n;
    DWORD   numEvents;
    HANDLE rHnd;    

WinusbHandle_Open = false;
DeviceHandle_Open = false;
winusb_guid = GUID_DEVCLASS_WINUSB;
stl_guid = GUID_DEVCLASS_STL;
usb_out_buffer[0] = 0;
usb_out_buffer[1] = 1;
usb_out_buffer[2] = 2;
usb_out_buffer[3] = 3;

ULONG bytesWritten;
ULONG timeout;
timeout = 100;
rHnd = GetStdHandle(STD_INPUT_HANDLE);

WinUsb_SetPipePolicy(WinusbHandle, 0x01, PIPE_TRANSFER_TIMEOUT, sizeof(ULONG), &timeout);

timeout = TRUE;
WinUsb_SetPipePolicy(WinusbHandle, 0x01, AUTO_CLEAR_STALL, sizeof(ULONG), &timeout);


timeout = TRUE;
WinUsb_SetPipePolicy(WinusbHandle, 0x01, RAW_IO, sizeof(ULONG), &timeout);//Bypasses queuing and error handling to boost performance for multiple read requests.


while (true)
{
if ((!WinusbHandle_Open) || (!WinusbHandle_Open)) { if (!connectusb())Sleep(2000); }
if ((!WinusbHandle_Open) || (!WinusbHandle_Open))continue;

bytesWritten = 0;
if (!WinUsb_WritePipe(WinusbHandle, 0x01, &usb_out_buffer[0], 2, &bytesWritten, NULL))
{
    n = GetLastError();
disconnectusb();
}
Sleep(2000);
}
disconnectusb();
return 0;
}




bool connectusb()
{
    BOOL                             bResult = FALSE;
    HDEVINFO                         deviceInfo;
    SP_DEVICE_INTERFACE_DATA         interfaceData;
    PSP_DEVICE_INTERFACE_DETAIL_DATA detailData = NULL;
    DWORD n;
    SP_DEVINFO_DATA devinfo;
    BYTE devdetailbuffer[4096];
    bool found;

    deviceInfo = SetupDiGetClassDevs(&stl_guid, NULL, NULL, DIGCF_PRESENT | DIGCF_DEVICEINTERFACE);
    if (deviceInfo == INVALID_HANDLE_VALUE) { return false; }

    found = false;
    for (n = 0;; n++)
    {

        interfaceData.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA);

        if (!SetupDiEnumDeviceInterfaces(deviceInfo, NULL, &stl_guid, n, &interfaceData))
        {
            n = GetLastError();
            break;
        }




        detailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA)devdetailbuffer;
        detailData->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
        devinfo.cbSize = sizeof(devinfo);
        if (!SetupDiGetDeviceInterfaceDetail(deviceInfo, &interfaceData, detailData, sizeof(devdetailbuffer), NULL, &devinfo)) { printf("SetupDiGetDeviceInterfaceDetail: %u\n", GetLastError()); break; }
        if (IsEqualGUID(devinfo.ClassGuid, winusb_guid))
        {
            if ((-1 != iStrPos(detailData->DevicePath, "VID_0483")) || (-1 != iStrPos(detailData->DevicePath, "vid_0483")))
            {
                if ((-1 != iStrPos(detailData->DevicePath, "PID_576B")) || (-1 != iStrPos(detailData->DevicePath, "pid_576b")))
                {

                    DevicePath = detailData->DevicePath;
                    found = true;
                    break;
                }
            }
        }
    }



SetupDiDestroyDeviceInfoList(deviceInfo);
if (!found)return false;


DeviceHandle = CreateFile(DevicePath.Buffer() ,
    GENERIC_WRITE | GENERIC_READ,
    FILE_SHARE_WRITE | FILE_SHARE_READ,
    NULL,
    OPEN_EXISTING,
    FILE_ATTRIBUTE_NORMAL | FILE_FLAG_OVERLAPPED,
    NULL);

if (INVALID_HANDLE_VALUE == DeviceHandle) {
    n = GetLastError();
}

if (INVALID_HANDLE_VALUE == DeviceHandle) return false;
DeviceHandle_Open = true;



if (!WinUsb_Initialize(DeviceHandle, &WinusbHandle))
 {
     n = GetLastError();
     CloseHandle(DeviceHandle); DeviceHandle_Open = false;
     return false;
 }



WinusbHandle_Open = true;
return true;
}

void  disconnectusb()
{
    if (WinusbHandle_Open) { WinUsb_Free(WinusbHandle); WinusbHandle_Open = false; }
    if (DeviceHandle_Open) { CloseHandle(DeviceHandle); DeviceHandle_Open = false; }
}