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 或 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;
}
此 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;
}