_RTL_CRITICAL_SECTION

_RTL_CRITICAL_SECTION :: struct {
    DebugInfo: _PRTL_CRITICAL_SECTION_DEBUG;
    LockCount: _LONG;
    RecursionCount: _LONG;
    OwningThread: _HANDLE;
    LockSemaphore: _HANDLE;
    SpinCount: _ULONG_PTR;
}

Declared in: winapi.bl