1 环境配置
1.1 安装NTDDK
1.2 设置VC++6.0的配置
工具
->选择->目录
1.3 程序引用
#include <windows.h>
extern "C" {
#include <hidsdi.h>
#include <hidpi.h>
#include <setupapi.h>
}
#pragma comment(lib,"setupapi.lib")
#pragma comment(lib,"hid.lib")
不加
#include <windows.h>的后果：
c:/program files/microsoft visual studio/vc98/include/rpcndr.h(58) : fatal error C1189: #error : incorrect <rpcndr.h> version. Use the header that matches with the MIDL compiler.
不加
extern “C” {}的后果：
编译通过，构造出错，
hid.obj : error LNK2001: unresolved external symbol "void __stdcall HidD_GetHidGuid(struct _GUID *)" (?HidD_GetHidGuid@@YGXPAU_GUID@@@Z)
Debug/hid.exe : fatal error LNK1120: 1 unresolved externals
不加
#pragma comment(lib,"hid.lib") 的后果：hid.obj : error LNK2001: unresolved external symbol _HidD_GetHidGuid@4
代码
/*名称：GetDevPath
功能：获取设备路径
参数：MemberIndex 设备列表的索引，txtpath文本缓存，以字符串保存设备路径
返回：-2表示结束，-1 表示不能获取GUID，0表示未找到设备，>0表示成功，且返回值为路径字符串长度
*/
int HidDevice::GetDevPath(DWORD
MemberIndex,char *txtpath)
{
int ret;
DWORD Length,Required;
//获GUID
HidD_GetHidGuid(&HidGuid);
hDevInfo=SetupDiGetClassDevs(&HidGuid,NULL,NULL,DIGCF_PRESENT|DIGCF_INTERFACEDEVICE);
if (hDevInfo == INVALID_HANDLE_VALUE)
{
return -1;
}
//枚举设备
ret=SetupDiEnumDeviceInterfaces(hDevInfo,0,&HidGuid,MemberIndex,&devInfoData);
if (!ret)
if(MemberIndex==1)
{
// MessageBox(NULL,"未找到任何可用USB设备!",NULL,NULL);
return 0;
}
else
return -2;
//获detaildata结构数组的长度
SetupDiGetDeviceInterfaceDetail(hDevInfo,&devInfoData,NULL,0,&Length,NULL);
detailData=(PSP_DEVICE_INTERFACE_DETAIL_DATA)malloc(Length);
detailData->cbSize=sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA);
//获detailData
ret=SetupDiGetDeviceInterfaceDetail(hDevInfo,&devInfoData,detailData,Length,&Required,NULL);
strcpy(txtpath,detailData->DevicePath);
return strlen(txtpath);
}
/*名称：GetProductInfo
功能：获取usb的hid设备的信息
参数：vendorid供应商，productid产品id,vernum版本号,manufaturer制造商,产品
返回：1
*/
int HidDevice::GetProductInfo(char *vendorid,char *productid,char *vernum,char *manufaturer,char *product)
{
HANDLE hDeviceHandle;
HIDD_ATTRIBUTES Attributes;
WCHAR mString[256];
hDeviceHandle = CreateFile(detailData->DevicePath ,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);
if(hDeviceHandle == INVALID_HANDLE_VALUE)
return 0;
HidD_GetAttributes(hDeviceHandle,&Attributes);
//将有关该设备的标识显示出来
sprintf(vendorid,"0xX",Attributes.VendorID);
sprintf(productid,"0xX",Attributes.ProductID);
sprintf(vernum,"0xX",Attributes.VersionNumber);
HidD_GetManufacturerString(hDeviceHandle,mString,sizeof(mString));
if (wcstombs(manufaturer,mString,256) == -1) // fail
manufaturer[0] = NULL;
HidD_GetProductString(hDeviceHandle,mString,sizeof(mString));
if (wcstombs(product,mString,256) == -1)
product[0] = NULL;
CloseHandle(hDeviceHandle);
return 1;
}
