Ntquerywnfstatedata Ntdlldll Better [cracked]

Exploring NtQueryWnfStateData in ntdll.dll: Why Go "Native"?

When developing security tools, sensors, or low-level system utilities on Windows, developers often face a choice: use the documented Win32 API or delve into the undocumented Native API (ntdll.dll).

HANDLE hState = NULL;
NTSTATUS status = NtOpenWnfState(&hState, 0x2000000, &WNF_NC_NETWORK_CONNECTIVITY);
Legitimate Usage
Only system components and a few tightly controlled drivers use WNF directly. Most application developers should rely on higher-level Win32 APIs (e.g., GetSystemPowerStatus, RegisterPowerSettingNotification), which internally may use WNF but provide a stable interface. ntquerywnfstatedata ntdlldll better
: Because the data resides in the kernel memory pool, it is highly efficient for system-wide broadcasts Helpful Resources Exploring  NtQueryWnfStateData  in ntdll
What is WNF and NtQueryWnfStateData

Windows Notification Facility (WNF): an OS mechanism for publishing and subscribing to system and application state changes using named state objects (state names). WNF is used internally by Windows components (power, network, session, tile updates, etc.) and by some apps and drivers.
NtQueryWnfStateData: a native (undocumented/partially documented) syscall exposed by ntdll.dll allowing a caller to query the current data for a given WNF state name, optionally subscribing to changes. It works at the kernel-native API level, not the higher Win32 API level.

When to use NtQueryWnfStateData

Research, diagnostics, and tooling where no Win32 equivalent provides required data and you accept the compatibility risk.
Low-level system utilities, reverse engineering, or experimentations where you control target environments and can adapt to OS changes.

int main() 
    WNF_STATE_NAME stateName =  0 ;
    BYTE stateData[1024] =  0 ;
    ULONG returnLength = 0;
    ULONG stateDataSize = sizeof(stateData);
    NTSTATUS status;