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CM_Get_Depth function

The CM_Get_Depth function is used to obtain the depth of a specified device node (devnode) within the local machine's device tree.

Syntax

C++


CMAPI
CONFIGRET
WINAPI CM_Get_Depth(
  _Out_ PULONG  pulDepth,
  _In_  DEVINST dnDevInst,
  _In_  ULONG   ulFlags
);

Parameters

pulDepth [out]: Caller-supplied address of a location to receive a depth value, where zero represents the device tree's root node, one represents the root node's children, and so on.
dnDevInst [in]: Caller-supplied device instance handle that is bound to the local machine.
ulFlags [in]: 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.

Remarks

For information about using device instance handles that are bound to the local machine, see CM_Get_Child.

Requirements

Target platform	Universal
Version	Available in Microsoft Windows 2000 and later versions of Windows.
Header	Cfgmgr32.h (include Cfgmgr32.h)
Library	Cfgmgr32.lib; OneCoreUAP.lib on Windows 10
DLL	CfgMgr32.dll