CM_Delete_DevNode_Key function (cfgmgr32.h)

The CM_Delete_DevNode_Key function deletes the specified user-accessible registry keys that are associated with a device.

Syntax

CMAPI CONFIGRET CM_Delete_DevNode_Key(
  [in] DEVNODE dnDevNode,
  [in] ULONG   ulHardwareProfile,
  [in] ULONG   ulFlags
);

Parameters

[in] dnDevNode

Device instance handle that is bound to the local machine.

[in] ulHardwareProfile

The hardware profile to delete if ulFlags includes CM_REGISTRY_CONFIG. If this value is zero, the key for the current hardware profile is deleted. If this value is 0xFFFFFFFF, the registry keys for all hardware profiles are deleted.

[in] ulFlags

Delete device node key flags. Indicates the scope and type of registry storage key to delete. Can be a combination of the following flags:

CM_REGISTRY_HARDWARE

Delete the device’s hardware key. Do not combine with CM_REGISTRY_SOFTWARE.

CM_REGISTRY_SOFTWARE

Delete the device’s software key. Do not combine with CM_REGISTRY_HARDWARE.

CM_REGISTRY_USER

Delete the per-user key for the current user. Do not combine with CM_REGISTRY_CONFIG.

CM_REGISTRY_CONFIG

Delete the key that stores hardware profile-specific configuration information. Do not combine with CM_REGISTRY_USER.

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.

Requirements

See also

CM_Open_DevNode_Key

SetupDiDeleteDevRegKey