获取设备信息列表

 

#include <Windows.h> 
#include <SetupAPI.h> 
#include <stdio.h> 
#include <devguid.h> 
#include <RegStr.h> 
 
BOOL EnumDeviceInterface(const GUID * InterfaceClassGUID){ 
    HDEVINFO DeviceInfoSet; 
    HDEVINFO NewDeviceInfoSet; 
    SP_DEVICE_INTERFACE_DATA DeviceInterfaceData; 
    PSP_DEVICE_INTERFACE_DETAIL_DATA lpDeviceInterfaceDetailData; 
    DWORD dwBufferSize = 0; 
    DWORD i; 
 
    DeviceInfoSet = SetupDiCreateDeviceInfoList(NULL,NULL); 
    if(DeviceInfoSet == INVALID_HANDLE_VALUE){ 
        printf("Create device interface failed.(%d)\n",GetLastError()); 
        return 0; 
    } 
    NewDeviceInfoSet = SetupDiGetClassDevsEx(InterfaceClassGUID,NULL,NULL,DIGCF_DEVICEINTERFACE|DIGCF_PRESENT,DeviceInfoSet,NULL,NULL); 
    if(NewDeviceInfoSet == INVALID_HANDLE_VALUE){ 
        printf("Get device interface infomation failed."); 
        return 0; 
    } 
    DeviceInterfaceData.cbSize = sizeof(DeviceInterfaceData); 
    for(i=0;;i++){ 
        BOOL bResult = SetupDiEnumDeviceInterfaces(NewDeviceInfoSet,NULL,InterfaceClassGUID,i,&DeviceInterfaceData); 
        if(!bResult){ 
            if(bResult != NO_ERROR && GetLastError()!=ERROR_NO_MORE_ITEMS){ 
                printf("ERROR:%d\n",GetLastError()); 
                return FALSE; 
            } 
            break; 
        }else{ 
            lpDeviceInterfaceDetailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA)HeapAlloc(GetProcessHeap(),0,sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA)); 
            lpDeviceInterfaceDetailData->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA); 
            dwBufferSize = lpDeviceInterfaceDetailData->cbSize; 
            while(!SetupDiGetDeviceInterfaceDetail(NewDeviceInfoSet,&DeviceInterfaceData,lpDeviceInterfaceDetailData,dwBufferSize,&dwBufferSize,NULL)){ 
                if(ERROR_INSUFFICIENT_BUFFER == GetLastError()){ 
                    lpDeviceInterfaceDetailData = (PSP_DEVICE_INTERFACE_DETAIL_DATA)HeapReAlloc(GetProcessHeap(),0,lpDeviceInterfaceDetailData,dwBufferSize); 
                    lpDeviceInterfaceDetailData->cbSize = sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA); 
                } 
            } 
            printf("DevicePath:%s\n",lpDeviceInterfaceDetailData->DevicePath); 
            HeapFree(GetProcessHeap(),0,lpDeviceInterfaceDetailData); 
        } 
    } 
    return TRUE; 
} 
 
int main(int argc,char * argv[],char *envp[]){ 
    printf("Get device interface information.\n"); 
    EnumDeviceInterface(&GUID_DEVINTERFACE_DISK); 
    return 0; 
}