C# Definition:

[StructLayout(LayoutKind.Sequential)]
public struct CRITICAL_SECTION
{
    public IntPtr DebugInfo;
    public int LockCount;
    public int RecursionCount;
    public IntPtr OwningThread;
    public IntPtr LockSemaphore;
    public UIntPtr SpinCount;
}

User-Defined Field Types:

None.

Notes:

None.