SetupDiGetClassDevs
枚举设备信息SetupDiGetClassDevs HDEVINFO SetupDiGetClassDevs( IN PGUID ClassGuid, IN PCTSTR Enumerator, IN HWND hwndParent, IN DWORD Flags ); SetupDiGetClassDevs 获取一个指定类别或全部类别的所有已安装设备的信息 参数说明： ClassGuid 一个特定类别GUID（需要查询注册表）的指针，如果设置了DIGCF_ALLCLASSES标记，该参数备忽略，将返回所有类别的设备信息表 Enumerator 过滤梅举的内容：如：PCI则只显示PCI设备， hwndParent 用于关联到集合成员中的用户接口的顶层窗口句柄 Flags 建立设备信息表的控制选项，可以是下列值 DIGCF_PRESENT （只列出当前存在的设备信息） DIGCF_ALLCLASSES （列出所有类别的一安装的设备表，如果设置了此值，则指定的类别将备忽略） DIGCF_PROFILE （只返回当前硬件概况部分） Return Value 如成功，返回包含所有与指定参数匹配的已经安装设备信息句柄， 如失败则返回INVALID_HANDLE_VALUE SetupDiEnumDeviceInfoBOOLEAN SetupDiEnumDeviceInfo(
IN HDEVINFO DeviceInfoSet,
IN DWORD MemberIndex,
OUT PSP_DEVINFO_DATA DeviceInfoData
); SetupDiEnumDeviceInfo 枚举指定设备信息集合的成员，并将数据放在PSP_DEVINFO_DATA中
参数说明： DeviceInfoSet
提供一个设备信息集合的句柄
MemberIndex
指定一个要取得的设备信息成员序号，从0开始
DeviceInfoData
指向SP_DEVINFO_DATA结构的指针，关于指定成员的返回信息就放在该结构中 Return ValueThe 成功返回True,否则返回False） 如果要枚举全部设备信息成员，装载者首先应该将MemberIndex设为0调用SetupDiEnumDeviceInfo，然后递增MemberIndex（使用一个for循环），调用SetupDiEnumDeviceInfo，直至所有成员全部遍历（此时函数返回False,并且GetLastError返回ERROR_NO_MORE_ITEMS） SetupDiGetDeviceRegistryProperty WINSETUPAPI BOOL WINAPI
SetupDiGetDeviceRegistryProperty(
IN HDEVINFO DeviceInfoSet,
IN PSP_DEVINFO_DATA DeviceInfoData,
IN DWORD Property,
OUT PDWORD PropertyRegDataType, OPTIONAL
OUT PBYTE PropertyBuffer,
IN DWORD PropertyBufferSize,
OUT PDWORD RequiredSize OPTIONAL
); SetupDiGetDeviceRegistryProperty:获得单个装置的详细资料 参数说明： DeviceInfoSet 设备信息句柄 DeviceInfoData SP_DEVINFO_DATA结构体，包含DeviceInfoSet 中的设备信息 Property 取以下的值： SPDRP_ADDRESS 查询设备的地址 SPDRP_BUSNUMBER 查询设备的bus号 SPDRP_BUSTYPEGUID 查询设备的GUID号 SPDRP_CAPABILITIES The function retrieves a bitwise OR of the following CM_DEVCAP_Xxx flags in a DWORD. The device capabilities that are represented by these flags correspond to the device capabilities that are represented by the members of the DEVICE_CAPABILITIES structure. The CM_DEVCAP_Xxx constants are defined in cfgmgr32.h. | CM_DEVCAP_Xxx flag | Corresponding DEVICE_CAPABILITIES structure member |
|---|
| CM_DEVCAP_LOCKSUPPORTED | LockSupported | | CM_DEVCAP_EJECTSUPPORTED | EjectSupported | | CM_DEVCAP_REMOVABLE | Removable | | CM_DEVCAP_DOCKDEVICE | DockDevice | | CM_DEVCAP_UNIQUEID | UniqueID | | CM_DEVCAP_SILENTINSTALL | SilentInstall | | CM_DEVCAP_RAWDEVICEOK | RawDeviceOK | | CM_DEVCAP_SURPRISEREMOVALOK | SurpriseRemovalOK | | CM_DEVCAP_HARDWAREDISABLED | HardwareDisabled | | CM_DEVCAP_NONDYNAMIC | NonDynamic |
- SPDRP_CHARACTERISTICS
- The function retrieves a bitwise OR of a device's characteristics flags in a DWORD. For a description of these flags, which are defined in wdm.h and ntddk.h, see the IoCreateDevicefunction's DeviceCharacteristics parameter.
- SPDRP_CLASS
- The function retrieves a REG_SZ string that contains the device setup class of a device.
- SPDRP_CLASSGUID
- The function retrieves a REG_SZ string that contains the GUID that represents the device setup class of a device.
- SPDRP_COMPATIBLEIDS
- The function retrieves a REG_MULTI_SZ string containing the list of compatible IDs for a device. For information about compatible IDs, see Device Identification Strings.
- SPDRP_CONFIGFLAGS
- The function retrieves a bitwise OR of a device's configuration flags in a DWORD value. The configuration flags are represented by the CONFIGFLAG_Xxx bitmasks that are defined inregstr.h.
- SPDRP_DEVICE_POWER_DATA
- (Windows XP and later) The function retrieves a CM_POWER_DATA structure containing the device's power management information.
- SPDRP_DEVICEDESC
- The function retrieves a REG_SZ string containing the description of a device.
- SPDRP_DEVTYPE
- The function retrieves a DWORD value representing the device's type (see Specifying Device Types).
- SPDRP_DRIVER
- The function retrieves a string identifying the device's software key (sometimes called thedriver key). See Driver Information in the Registry.
- SPDRP_ENUMERATOR_NAME
- The function retrieves a REG_SZ string containing the name of the device's enumerator.
- SPDRP_EXCLUSIVE
- The function retrieves a DWORD value that indicates whether a user can obtain exclusive use of the device. The returned value is one if exclusive use is allowed, or zero otherwise. For more information, see IoCreateDevice.
- SPDRP_FRIENDLYNAME
- The function retrieves a REG_SZ string that contains the friendly name of a device.
- SPDRP_HARDWAREID
- The function retrieves a REG_MULTI_SZ string containing the list of hardware IDs for a device. For information about hardware IDs, see Device Identification Strings.
- SPDRP_INSTALL_STATE
- (Windows XP and later) The function retrieves a DWORD value that indicates the installation state of a device. The installation state is represented by one of the CM_INSTALL_STATE_Xxxvalues that are defined in Cfgmgr32.h. The CM_INSTALL_STATE_Xxx values correspond to the DEVICE_INSTALL_STATE enumeration values.
- SPDRP_LEGACYBUSTYPE
- The function retrieves the device's legacy bus type as an INTERFACE_TYPE value (defined inwdm.h and ntddk.h).
- SPDRP_LOCATION_INFORMATION
- The function retrieves a REG_SZ string that contains the hardware location of a device.
- SPDRP_LOCATION_PATHS
- (Windows Server 2003 and later) The function retrieves a REG_MULTI_SZ string that represents the location of the device in the device tree.
- SPDRP_LOWERFILTERS
- The function retrieves a REG_MULTI_SZ string that contains the names of a device's lower-filter drivers.
- SPDRP_MFG
- The function retrieves a REG_SZ string that contains the name of the device manufacturer.
- SPDRP_PHYSICAL_DEVICE_OBJECT_NAME
- The function retrieves a REG_SZ string that contains the name that is associated with the device's PDO. For more information, see IoCreateDevice.
- SPDRP_REMOVAL_POLICY
- (Windows XP and later) The function retrieves the device's current removal policy as a DWORD containing one of the CM_REMOVAL_POLICY_Xxx values defined in cfgmgr32.h.
- SPDRP_REMOVAL_POLICY_HW_DEFAULT
- (Windows XP and later) The function retrieves the device's hardware-specified default removal policy as a DWORD containing one of the CM_REMOVAL_POLICY_Xxx values defined in cfgmgr32.h.
- SPDRP_REMOVAL_POLICY_OVERRIDE
- (Windows XP and later) The function retrieves the device's override removal policy (if it exists) from the registry, as a DWORD containing one of the CM_REMOVAL_POLICY_Xxx values defined in cfgmgr32.h.
- SPDRP_SECURITY
- The function retrieves a SECURITY_DESCRIPTOR structure for a device.
- SPDRP_SECURITY_SDS
- The function retrieves a REG_SZ string that contains the device's security descriptor. The format of security descriptor strings is described in Microsoft Windows SDK documentation.
- SPDRP_SERVICE
- The function retrieves a REG_SZ string containing the service name for a device.
- SPDRP_UI_NUMBER
- The function retrieves a DWORD value set to the value of the UINumber member of the device's DEVICE_CAPABILITIES structure.
- SPDRP_UI_NUMBER_DESC_FORMAT
- The function retrieves a format string (REG_SZ) used to display the UINumber value.
- SPDRP_UPPERFILTERS
- The function retrieves a REG_MULTI_SZ string that contains the names of a device's upper filter drivers.
- PropertyRegDataType
- A pointer to a variable that receives the data type of the property that is being retrieved. This is one of the standard registry data types. This parameter is optional and can be NULL.
- PropertyBuffer
- A pointer to a buffer that receives the property that is being retrieved. If this parameter is set to NULL, and PropertyBufferSize is also set to zero, the function returns the required size for the buffer in RequiredSize.
- PropertyBufferSize
- The size, in bytes, of the PropertyBuffer buffer.
- RequiredSize
- A pointer to a variable of type DWORD that receives the required size, in bytes, of thePropertyBuffer buffer that is required to hold the data for the requested property. This parameter is optional and can be NULL.
Return ValueSetupDiGetDeviceRegistryProperty returns TRUE if the call was successful. Otherwise, it returns FALSE and the logged error can be retrieved with a call to GetLastError.SetupDiGetDeviceRegistryProperty returns the ERROR_INVALID_DATA error code if the requested property does not exist for a device or if the property data is not valid. |
