CM_Get_DevNode_PropertyW function (cfgmgr32.h)

The CM_Get_DevNode_Property function retrieves a device instance property.


  [in]      DEVINST          dnDevInst,
  [in]      const DEVPROPKEY *PropertyKey,
  [out]     DEVPROPTYPE      *PropertyType,
  [out]     PBYTE            PropertyBuffer,
  [in, out] PULONG           PropertyBufferSize,
  [in]      ULONG            ulFlags


[in] dnDevInst

Device instance handle that is bound to the local machine.

[in] PropertyKey

Pointer to a DEVPROPKEY structure that represents the device property key of the requested device instance property.

[out] PropertyType

Pointer to a DEVPROPTYPE-typed variable that receives the property-data-type identifier of the requested device instance property, where the property-data-type identifier is the bitwise OR between a base-data-type identifier and, if the base-data type is modified, a property-data-type modifier.

[out] PropertyBuffer

Pointer to a buffer that receives the requested device instance property. CM_Get_DevNode_Property retrieves the requested property only if the buffer is large enough to hold all the property value data. The pointer can be NULL.

[in, out] PropertyBufferSize

The size, in bytes, of the PropertyBuffer buffer. If PropertyBuffer is set to NULL, *PropertyBufferSize must be set to zero. As output, if the buffer is not large enough to hold all the property value data, CM_Get_DevNode_Property returns the size of the data, in bytes, in *PropertyBufferSize.

[in] ulFlags

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 is part of the Unified Device Property Model.


Requirement Value
Minimum supported client Available in Microsoft Windows Vista and later versions of Windows.
Target Platform Universal
Header cfgmgr32.h (include Cfgmgr32.h)
Library Cfgmgr32.lib
DLL CfgMgr32.dll

See also