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PoUnregisterSystemState function (wdm.h)
The PoUnregisterSystemState routine cancels a system state registration created by PoRegisterSystemState.
Syntax
VOID PoUnregisterSystemState(
[in, out] PVOID StateHandle
);
Parameters
[in, out] StateHandle
A pointer to a handle previously returned by PoRegisterSystemState.
Return value
None
Remarks
This routine cancels a system busy state registration established by PoRegisterSystemState and frees the associated StateHandle.
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 | <=APC_LEVEL |
See also
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