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將程式代碼從 SetupApi 移植到 CfgMgr32

本主題提供程式碼範例,示範如何移植使用 Setupapi.dll 功能來改用 Cfgmgr32.dll 的程序代碼。 移植程式代碼可讓您在不支援 SetupApi 的 通用 Windows 平台 (UWP) 上執行程式代碼。 UWP 支援 CfgMgr32 子集,特別是透過 api-ms-win-devices-config-l1-1-0.dll API 集合公開的功能 (Windows 8 和更新版本) 或 api-ms-win-devices-config-l1-1-1.dll API 集合 (Windows 8.1 和更新版本) 。 在 Windows 10 和更新版本中,只需連結至 onecore.lib

若要查看上述 API 集合中的函式清單,請參閱 Windows API 集合Onecore.lib:來自 api-ms-win-devices-config-l1-1-1.dll的 API

下列各節包含應用程式通常會使用的程式碼範例。

取得現有裝置的清單,並擷取每個裝置的屬性

此範例會使用 SetupDiGetClassDevs 取得所有現有裝置的清單,並逐一查看它們以擷取每個裝置的裝置描述。

VOID
GetDevicePropertiesSetupapi(
    VOID
    )
{
    HDEVINFO DeviceInfoSet = INVALID_HANDLE_VALUE;
    SP_DEVINFO_DATA DeviceInfoData;
    DWORD Index;
    WCHAR DeviceDesc[2048];
    DEVPROPTYPE PropertyType;

    DeviceInfoSet = SetupDiGetClassDevs(NULL,
                                        NULL,
                                        NULL,
                                        DIGCF_ALLCLASSES | DIGCF_PRESENT);

    if (DeviceInfoSet == INVALID_HANDLE_VALUE)
    {
        goto Exit;
    }

    ZeroMemory(&DeviceInfoData, sizeof(DeviceInfoData));
    DeviceInfoData.cbSize = sizeof(DeviceInfoData);

    for (Index = 0;
         SetupDiEnumDeviceInfo(DeviceInfoSet,
                               Index,
                               &DeviceInfoData);
         Index++)
    {
        // Query a property on the device.  For example, the device description.
        if (!SetupDiGetDeviceProperty(DeviceInfoSet,
                                      &DeviceInfoData,
                                      &DEVPKEY_Device_DeviceDesc,
                                      &PropertyType,
                                      (PBYTE)DeviceDesc,
                                      sizeof(DeviceDesc),
                                      NULL,
                                      0))
        {
            // The error can be retrieved with GetLastError();
            continue;
        }

        if (PropertyType != DEVPROP_TYPE_STRING)
        {
            continue;
        }
    }

    if (GetLastError() != ERROR_NO_MORE_ITEMS)
    {
        goto Exit;
    }

  Exit:

    if (DeviceInfoSet != INVALID_HANDLE_VALUE)
    {
        SetupDiDestroyDeviceInfoList(DeviceInfoSet);
    }

    return;
}

此範例會使用 CM_Get_Device_ID_List 取得所有現有裝置的清單 並逐一查看它們以擷取每個裝置的裝置描述。

VOID
GetDevicePropertiesCfgmgr32(
    VOID
    )
{
    CONFIGRET cr = CR_SUCCESS;
    PWSTR DeviceList = NULL;
    ULONG DeviceListLength = 0;
    PWSTR CurrentDevice;
    DEVINST Devinst;
    WCHAR DeviceDesc[2048];
    DEVPROPTYPE PropertyType;
    ULONG PropertySize;
    DWORD Index = 0;

    cr = CM_Get_Device_ID_List_Size(&DeviceListLength,
                                    NULL,
                                    CM_GETIDLIST_FILTER_PRESENT);

    if (cr != CR_SUCCESS)
    {
        goto Exit;
    }

    DeviceList = (PWSTR)HeapAlloc(GetProcessHeap(),
                                  HEAP_ZERO_MEMORY,
                                  DeviceListLength * sizeof(WCHAR));

    if (DeviceList == NULL) {
        goto Exit;
    }

    cr = CM_Get_Device_ID_List(NULL,
                               DeviceList,
                               DeviceListLength,
                               CM_GETIDLIST_FILTER_PRESENT);

    if (cr != CR_SUCCESS)
    {
        goto Exit;
    }

    for (CurrentDevice = DeviceList;
         *CurrentDevice;
         CurrentDevice += wcslen(CurrentDevice) + 1)
    {

        // If the list of devices also includes non-present devices,
        // CM_LOCATE_DEVNODE_PHANTOM should be used in place of
        // CM_LOCATE_DEVNODE_NORMAL.
        cr = CM_Locate_DevNode(&Devinst,
                               CurrentDevice,
                               CM_LOCATE_DEVNODE_NORMAL);

        if (cr != CR_SUCCESS)
        {
            goto Exit;
        }

        // Query a property on the device.  For example, the device description.
        PropertySize = sizeof(DeviceDesc);
        cr = CM_Get_DevNode_Property(Devinst,
                                     &DEVPKEY_Device_DeviceDesc,
                                     &PropertyType,
                                     (PBYTE)DeviceDesc,
                                     &PropertySize,
                                     0);

        if (cr != CR_SUCCESS)
        {
            Index++;
            continue;
        }

        if (PropertyType != DEVPROP_TYPE_STRING)
        {
            Index++;
            continue;
        }

        Index++;
    }

  Exit:

    if (DeviceList != NULL)
    {
        HeapFree(GetProcessHeap(),
                 0,
                 DeviceList);
    }

    return;
}

取得介面清單、取得公開每個介面的裝置,以及從裝置取得屬性

此範例會使用 SetupDiGetClassDevs 取得類別GUID_DEVINTERFACE_VOLUME中所有介面的清單。 針對每個介面,它會取得公開介面的裝置,並取得該裝置的屬性。

VOID
GetInterfacesAndDevicePropertySetupapi(
    VOID
    )
{
    HDEVINFO DeviceInfoSet = INVALID_HANDLE_VALUE;
    SP_DEVICE_INTERFACE_DATA DeviceInterfaceData;
    SP_DEVINFO_DATA DeviceInfoData;
    DWORD Index;
    WCHAR DeviceDesc[2048];
    DEVPROPTYPE PropertyType;

    DeviceInfoSet = SetupDiGetClassDevs(&GUID_DEVINTERFACE_VOLUME,
                                        NULL,
                                        NULL,
                                        DIGCF_DEVICEINTERFACE);

    if (DeviceInfoSet == INVALID_HANDLE_VALUE)
    {
        goto Exit;
    }

    ZeroMemory(&DeviceInterfaceData, sizeof(DeviceInterfaceData));
    DeviceInterfaceData.cbSize = sizeof(DeviceInterfaceData);

    for (Index = 0;
         SetupDiEnumDeviceInterfaces(DeviceInfoSet,
                                     NULL,
                                     &GUID_DEVINTERFACE_VOLUME,
                                     Index,
                                     &DeviceInterfaceData);
         Index++)
    {

        ZeroMemory(&DeviceInfoData, sizeof(DeviceInfoData));
        DeviceInfoData.cbSize = sizeof(DeviceInfoData);

        if ((!SetupDiGetDeviceInterfaceDetail(DeviceInfoSet,
                                              &DeviceInterfaceData,
                                              NULL,
                                              0,
                                              NULL,
                                              &DeviceInfoData)) &&
            (GetLastError() != ERROR_INSUFFICIENT_BUFFER))
        {
            // The error can be retrieved with GetLastError();
            goto Exit;
        }

        // Query a property on the device.  For example, the device description.
        if (!SetupDiGetDeviceProperty(DeviceInfoSet,
                                      &DeviceInfoData,
                                      &DEVPKEY_Device_DeviceDesc,
                                      &PropertyType,
                                      (PBYTE)DeviceDesc,
                                      sizeof(DeviceDesc),
                                      NULL,
                                      0))
        {
            // The error can be retrieved with GetLastError();
            goto Exit;
        }

        if (PropertyType != DEVPROP_TYPE_STRING)
        {
            goto Exit;
        }
    }

    if (GetLastError() != ERROR_NO_MORE_ITEMS)
    {
        goto Exit;
    }

  Exit:

    if (DeviceInfoSet != INVALID_HANDLE_VALUE)
    {
        SetupDiDestroyDeviceInfoList(DeviceInfoSet);
    }

    return;
}

範例會使用 CM_Get_Device_Interface_List 取得類別GUID_DEVINTERFACE_VOLUME中所有介面的清單。 針對每個介面,它會取得公開介面的裝置,並取得該裝置的屬性。

VOID
GetInterfacesAndDevicePropertyCfgmgr32(
    VOID
    )
{
    CONFIGRET cr = CR_SUCCESS;
    PWSTR DeviceInterfaceList = NULL;
    ULONG DeviceInterfaceListLength = 0;
    PWSTR CurrentInterface;
    WCHAR CurrentDevice[MAX_DEVICE_ID_LEN];
    DEVINST Devinst;
    WCHAR DeviceDesc[2048];
    DEVPROPTYPE PropertyType;
    ULONG PropertySize;
    DWORD Index = 0;

    do {
        cr = CM_Get_Device_Interface_List_Size(&DeviceInterfaceListLength,
                                               (LPGUID)&GUID_DEVINTERFACE_VOLUME,
                                               NULL,
                                               CM_GET_DEVICE_INTERFACE_LIST_ALL_DEVICES);

        if (cr != CR_SUCCESS)
        {
            break;
        }

        if (DeviceInterfaceList != NULL) {
            HeapFree(GetProcessHeap(),
                     0,
                     DeviceInterfaceList);
        }

        DeviceInterfaceList = (PWSTR)HeapAlloc(GetProcessHeap(),
                                               HEAP_ZERO_MEMORY,
                                               DeviceInterfaceListLength * sizeof(WCHAR));

        if (DeviceInterfaceList == NULL)
        {
            cr = CR_OUT_OF_MEMORY;
            break;
        }

        cr = CM_Get_Device_Interface_List((LPGUID)&GUID_DEVINTERFACE_VOLUME,
                                          NULL,
                                          DeviceInterfaceList,
                                          DeviceInterfaceListLength,
                                          CM_GET_DEVICE_INTERFACE_LIST_ALL_DEVICES);
    } while (cr == CR_BUFFER_SMALL);

    if (cr != CR_SUCCESS)
    {
        goto Exit;
    }

    for (CurrentInterface = DeviceInterfaceList;
         *CurrentInterface;
         CurrentInterface += wcslen(CurrentInterface) + 1)
    {

        PropertySize = sizeof(CurrentDevice);
        cr = CM_Get_Device_Interface_Property(CurrentInterface,
                                              &DEVPKEY_Device_InstanceId,
                                              &PropertyType,
                                              (PBYTE)CurrentDevice,
                                              &PropertySize,
                                              0);

        if (cr != CR_SUCCESS)
        {
            goto Exit;
        }

        if (PropertyType != DEVPROP_TYPE_STRING)
        {
            goto Exit;
        }

        // Since the list of interfaces includes all interfaces, enabled or not, the
        // device that exposed that interface may currently be non-present, so
        // CM_LOCATE_DEVNODE_PHANTOM should be used.
        cr = CM_Locate_DevNode(&Devinst,
                               CurrentDevice,
                               CM_LOCATE_DEVNODE_PHANTOM);

        if (cr != CR_SUCCESS)
        {
            goto Exit;
        }

        // Query a property on the device.  For example, the device description.
        PropertySize = sizeof(DeviceDesc);
        cr = CM_Get_DevNode_Property(Devinst,
                                     &DEVPKEY_Device_DeviceDesc,
                                     &PropertyType,
                                     (PBYTE)DeviceDesc,
                                     &PropertySize,
                                     0);

        if (cr != CR_SUCCESS)
        {
            goto Exit;
        }

        if (PropertyType != DEVPROP_TYPE_STRING)
        {
            goto Exit;
        }

        Index++;
    }

  Exit:

    if (DeviceInterfaceList != NULL)
    {
        HeapFree(GetProcessHeap(),
                 0,
                 DeviceInterfaceList);
    }

    return;
}

從特定裝置取得屬性

此範例會採用特定裝置的裝置實例路徑,並使用 SetupDiGetDeviceProperty 從中擷取屬性。

VOID
GetDevicePropertySpecificDeviceSetupapi(
    VOID
    )
{
    HDEVINFO DeviceInfoSet = INVALID_HANDLE_VALUE;
    SP_DEVINFO_DATA DeviceInfoData;
    WCHAR DeviceDesc[2048];
    DEVPROPTYPE PropertyType;

    DeviceInfoSet = SetupDiCreateDeviceInfoList(NULL, NULL);

    if (DeviceInfoSet == INVALID_HANDLE_VALUE)
    {
        goto Exit;
    }

    ZeroMemory(&DeviceInfoData, sizeof(DeviceInfoData));
    DeviceInfoData.cbSize = sizeof(DeviceInfoData);

    if (!SetupDiOpenDeviceInfo(DeviceInfoSet,
                               MY_DEVICE,
                               NULL,
                               0,
                               &DeviceInfoData))
    {
        // The error can be retrieved with GetLastError();
        goto Exit;
    }

    // Query a property on the device.  For example, the device description.
    if (!SetupDiGetDeviceProperty(DeviceInfoSet,
                                  &DeviceInfoData,
                                  &DEVPKEY_Device_DeviceDesc,
                                  &PropertyType,
                                  (PBYTE)DeviceDesc,
                                  sizeof(DeviceDesc),
                                  NULL,
                                  0)) {
        // The error can be retrieved with GetLastError();
        goto Exit;
    }

    if (PropertyType != DEVPROP_TYPE_STRING)
    {
        goto Exit;
    }

  Exit:

    if (DeviceInfoSet != INVALID_HANDLE_VALUE)
    {
        SetupDiDestroyDeviceInfoList(DeviceInfoSet);
    }

    return;
}

此範例會採用特定裝置的裝置實例路徑,並使用 CM_Get_DevNode_Property 從中擷取屬性。

void
GetDevicePropertySpecificDeviceCfgmgr32(
    VOID
    )
{
    CONFIGRET cr = CR_SUCCESS;
    DEVINST Devinst;
    WCHAR DeviceDesc[2048];
    DEVPROPTYPE PropertyType;
    ULONG PropertySize;

    // If MY_DEVICE could be a non-present device, CM_LOCATE_DEVNODE_PHANTOM
    // should be used in place of CM_LOCATE_DEVNODE_NORMAL.
    cr = CM_Locate_DevNode(&Devinst,
                           MY_DEVICE,
                           CM_LOCATE_DEVNODE_NORMAL);

    if (cr != CR_SUCCESS)
    {
        goto Exit;
    }

    // Query a property on the device.  For example, the device description.
    PropertySize = sizeof(DeviceDesc);
    cr = CM_Get_DevNode_Property(Devinst,
                                 &DEVPKEY_Device_DeviceDesc,
                                 &PropertyType,
                                 (PBYTE)DeviceDesc,
                                 &PropertySize,
                                 0);

    if (cr != CR_SUCCESS)
    {
        goto Exit;
    }

    if (PropertyType != DEVPROP_TYPE_STRING)
    {
        goto Exit;
    }

  Exit:

    return;
}

停用裝置

此範例示範如何使用 CfgMgr32 停用裝置。 若要使用 SetupApi 執行這項操作,您可以使用 SetupDiCallClassInstaller 搭配 installFunctionDIF_PROPERTYCHANGE,並指定 DICS_DISABLE

注意 根據預設,呼叫 SetupDiCallClassInstaller 會導致裝置在重新啟動期間保持停用。 若要在呼叫 CM_Disable_DevNode 時跨重新啟動停用裝置,您必須指定 CM_DISABLE_PERSIST 旗標。

    cr = CM_Locate_DevNode(&devinst,
                           (DEVINSTID_W)DeviceInstanceId,
                           CM_LOCATE_DEVNODE_NORMAL);

    if (cr != CR_SUCCESS) {
        goto Exit;
    }

    cr = CM_Disable_DevNode(devinst, 0);

    if (cr != CR_SUCCESS) {
        goto Exit;
    }

啟用裝置

此範例示範如何使用 CfgMgr32 啟用裝置。 若要使用 SetupApi 執行這項操作,您可以使用 SetupDiCallClassInstaller 搭配 installFunctionDIF_PROPERTYCHANGE,並指定 DICS_ENABLE

    cr = CM_Locate_DevNode(&devinst,
                           (DEVINSTID_W)DeviceInstanceId,
                           CM_LOCATE_DEVNODE_NORMAL);

    if (cr != CR_SUCCESS) {
        goto Exit;
    }

    cr = CM_Enable_DevNode(devinst, 0);

    if (cr != CR_SUCCESS) {
        goto Exit;
    }

重新啟動裝置

此範例示範如何使用 CfgMgr32 重新啟動裝置。 若要使用 SetupApi 執行這項操作,您可以使用 SetupDiCallClassInstaller 搭配 installFunctionDIF_PROPERTYCHANGE,並指定 DICS_PROPCHANGE

    cr = CM_Locate_DevNode(&devinst,
                           (DEVINSTID_W)DeviceInstanceId,
                           CM_LOCATE_DEVNODE_NORMAL);

    if (cr != CR_SUCCESS) {
        goto Exit;
    }

    cr = CM_Query_And_Remove_SubTree(devinst,
                                     NULL,
                                     NULL,
                                     0,
                                     CM_REMOVE_NO_RESTART);

    if (cr != CR_SUCCESS) {
        goto Exit;
    }

    cr = CM_Setup_DevNode(devinst,
                          CM_SETUP_DEVNODE_READY);

    if (cr != CR_SUCCESS) {
        goto Exit;
    }