: While undocumented, its common definition in development environments (like Rust crates or C++ kernel research) looks like this:

. You can use this to check if you already have the latest information without re-processing the entire buffer. Buffer Management

NTSYSCALLAPI NTSTATUS NTAPI NtQueryWnfStateData( _In_ PWNF_STATE_NAME StateName, _In_opt_ PWNF_TYPE_ID TypeId, _In_opt_

WNF acts like a system-wide, kernel-mode publish-subscribe (Pub/Sub) service. It allows different components of Windows—and your own applications—to exchange state information without needing a direct handle to each other. Why is it "Better" than Traditional Methods?