InitializeCriticalSection

C# Signature:

[DllImport("kernel32.dll")]
static extern bool InitializeCriticalSectionAndSpinCount(ref CRITICAL_SECTION
   lpCriticalSection, uint dwSpinCount);

User-Defined Types:

[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;
}