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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.

Syntax

C++


CMAPI
CONFIGRET
WINAPI CM_Get_DevNode_Property_Keys(
  _In_      DEVINST    dnDevInst,
  _Out_opt_ DEVPROPKEY *PropertyKeyArray,
  _Inout_   PULONG     PropertyKeyCount,
  _In_      ULONG      ulFlags
);

Parameters

dnDevInst [in]: Device instance handle that is bound to the local machine.
PropertyKeyArray [out, optional]: 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.
PropertyKeyCount [in, out]: 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.
ulFlags [in]: 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.

Remarks

CM_Get_DevNode_Property_Keys is part of the Unified Device Property Model.

Requirements

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