The CM_Get_Parent function obtains a device instance handle to the parent node of a specified device node (devnode) in the local machine's device tree.

CMAPI CONFIGRET WINAPI
  CM_Get_Parent(
    OUT PDEVINST  pdnDevInst,
    IN DEVINST  dnDevInst,
    IN ULONG  ulFlags
    );

Parameters

pdnDevInst

Caller-supplied pointer to the device instance handle to the parent node that this function retrieves. The retrieved handle is bound to the local machine.

dnDevInst

Caller-supplied device instance handle that is bound to the local machine.

ulFlags

Not used, must be 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.

Comments

For information about using a device instance handle that is bound to the local machine, see CM_Get_Child.

Requirements

Versions: The CM_Get_Parent function is available in Microsoft Windows 2000 and later versions of Windows.

Headers: Declared in Cfgmgr32.h. Include Cfgmgr32.h.

Library: Contained in Cfgmgr32.lib. Link to Cfgmgr32.lib.

See Also

CM_Get_Child, CM_Get_Parent_Ex