CM_Get_Parent function (cfgmgr32.h)
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.
Note
In Windows Vista and later versions of Windows, the unified device property model uses the DEVPKEY_Device_Parent property key to represent device parent. See Retrieving Device Relations for details.
Syntax
CMAPI CONFIGRET CM_Get_Parent(
[out] PDEVINST pdnDevInst,
[in] DEVINST dnDevInst,
[in] ULONG ulFlags
);
Parameters
[out] 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.
[in] dnDevInst
Caller-supplied device instance handle that is bound to the local machine.
[in] 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.
Remarks
For information about using a device instance handle that is bound to the local machine, see CM_Get_Child.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Available in Microsoft Windows 2000 and later versions of Windows. |
| Target Platform | Universal |
| Header | cfgmgr32.h (include Cfgmgr32.h) |
| Library | Cfgmgr32.lib; OneCoreUAP.lib on Windows 10 |
| DLL | CfgMgr32.dll |