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SetupDiGetSelectedDriver 使用问题

sea_sharka_17 2009-04-22 01:42:43



    HDEVINFO hDevInfo ;

    SP_DEVINFO_DATA spDevInfoData ;

    SP_DRVINFO_DATA DriverInfoData;

    

    //访问系统的硬件库

    hDevInfo=SetupDiGetClassDevs(NULL,"PCI",NULL,DIGCF_ALLCLASSES|DIGCF_PRESENT);

    if(hDevInfo==INVALID_HANDLE_VALUE)

    {

        printf("访问系统硬件出错！");

        return false ;

    }

    

    //枚举硬件，获得需要的接口

    spDevInfoData.cbSize=sizeof(SP_DEVINFO_DATA);

    for(i=0;SetupDiEnumDeviceInfo(hDevInfo, i, &spDevInfoData);i++)

    {

		if(!SetupDiBuildDriverInfoList(hDevInfo,

			&spDevInfoData, SPDIT_COMPATDRIVER))

		{

			DWORD err = GetLastError();

			return false;

		}



		DriverInfoData.cbSize = sizeof(SP_DRVINFO_DATA);



		if(!SetupDiGetSelectedDriver(hDevInfo, &spDevInfoData, &DriverInfoData))

		{

			if(ERROR_NO_DRIVER_SELECTED != GetLastError())

			{

				DWORD	dw	= GetLastError();

				printf("%ld", dw);

				return false;

			}

			else

			{

				continue;

			}

		}

		else

		{

			printf("%s\n", DriverInfoData.Description);

			continue;

		}

}