IoWMIDeviceObjectToProviderId function (wdm.h)

Article
02/22/2024

The IoWMIDeviceObjectToProviderId routine translates the specified device object into the corresponding WMI Provider ID.

Syntax

ULONG IoWMIDeviceObjectToProviderId(
  [in] PDEVICE_OBJECT DeviceObject
);

Parameters

[in] DeviceObject

Pointer to a device object.

Return value

IoWMIDeviceObjectToProviderId returns the WMI Provider ID associated with the specified device object.

Remarks

IoWMIDeviceObjectToProviderId should be used when filling in the ProviderId member of the WNODE_HEADER structure in those cases when the WNODEHEADER structure is being initialized as part of a WNODE_EVENT_ITEM or WNODE_EVENT_REFERENCE structure. (If the WNODE_HEADER is being used for other purposes, ProviderId is reserved.)

When running on a 32-bit operating system, the provider ID and the device object are identical. When running on a 64-bit operating system, IoWMIDeviceObjectToProviderId will convert the 64-bit device object to a 32-bit provider ID.

Requirements

Requirement	Value
Minimum supported client	Available starting with Windows 2000.
Target Platform	Universal
Header	wdm.h (include Wdm.h, Ntddk.h, Ntifs.h)
Library	NtosKrnl.lib
DLL	NtosKrnl.exe
IRQL	<= DISPATCH_LEVEL