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CM_Get_Device_Interface_Property_Keys function

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

Syntax

C++


CMAPI
CONFIGRET
WINAPI CM_Get_Device_Interface_Property_Keys(
  _In_      LPCWSTR    pszDeviceInterface,
  _Out_opt_ DEVPROPKEY *PropertyKeyArray,
  _Inout_   PULONG     PropertyKeyCount,
  _In_      ULONG      ulFlags
);

Parameters

pszDeviceInterface [in]: Pointer to a string that identifies the device interface instance to retrieve the property keys from.
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 interface. 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_Device_Interface_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_Device_Interface_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
Unicode and ANSI names	CM_Get_Device_Interface_Property_KeysW (Unicode)