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CM_Set_Class_Property function

The CM_Set_Class_Property function sets a class property for a device setup class or a device interface class.

Syntax

C++


CMAPI
CONFIGRET
WINAPI CM_Set_Class_Property(
  _In_       LPCGUID     ClassGUID,
  _In_ const DEVPROPKEY  *PropertyKey,
  _In_       DEVPROPTYPE PropertyType,
  _In_ const PBYTE       PropertyBuffer,
  _In_       ULONG       PropertyBufferSize,
  _In_       ULONG       ulFlags
);

Parameters

ClassGUID [in]

Pointer to the GUID that identifies the device interface class or device setup class for which to set a device property. For information about specifying the class type, see the ulFlags parameter.

PropertyKey [in]

Pointer to a DEVPROPKEY structure that represents the property key of the device class property to set.

PropertyType [in]

A DEVPROPTYPE-typed value that represents the property-data-type identifier for the device class property. To delete a property, set this to DEVPROP_TYPE_EMPTY.

PropertyBuffer [in]

Pointer to a buffer that contains the property value of the device class property. If either the property or the data is to be deleted, this pointer must be set to NULL, and PropertyBufferSize must be set to zero.

PropertyBufferSize [in]

The size, in bytes, of the PropertyBuffer buffer. If PropertyBuffer is set to NULL, PropertyBufferSize must be set to zero.

ulFlags [in]

Class property flags:

CM_CLASS_PROPERTY_INSTALLER: ClassGUID specifies a device setup class. Do not combine with CM_CLASS_PROPERTY_INTERFACE.
CM_CLASS_PROPERTY_INTERFACE: ClassGUID specifies a device interface class. Do not combine with CM_CLASS_PROPERTY_INSTALLER.

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_Set_Class_Property 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_Set_Class_PropertyW (Unicode)