CM_Get_DevNode_Property_Keys function

The CM_Get_DevNode_Property_Keys function retrieves an array of the device property keys that represent the device properties that are set for a device instance.


CMAPI CONFIGRET CM_Get_DevNode_Property_Keys(
  DEVINST    dnDevInst,
  DEVPROPKEY *PropertyKeyArray,
  PULONG     PropertyKeyCount,
  ULONG      ulFlags



Device instance handle that is bound to the local machine.


Pointer to a buffer that receives an array of DEVPROPKEY-typed values, where each value is a device property key that represents a device property that is set for the device instance. The pointer is optional and can be NULL.


The size, in DEVPROPKEY-typed units, of the PropertyKeyArray buffer. If PropertyKeyArray is set to NULL, *PropertyKeyCount must be set to zero. As output, If PropertyKeyArray is not large enough to hold all the property key data, CM_Get_DevNode_Property_Keys returns the count of the keys in *PropertyKeyCount.


Reserved. Must be set to zero.

Return Value

If the operation succeeds, the function returns CR_SUCCESS. Otherwise, it returns one of the CR_-prefixed error codes defined in Cfgmgr32.h.


CM_Get_DevNode_Property_Keys is part of the Unified Device Property Model.


Windows version Available in Microsoft Windows Vista and later versions of Windows.
Target Platform Universal
Header cfgmgr32.h (include Cfgmgr32.h)
Library Cfgmgr32.lib; OneCoreUAP.lib on Windows 10
DLL CfgMgr32.dll

See Also