C# Signature:

[DllImport("kernel32.dll")]
static extern void InitializeCriticalSection(out CRITICAL_SECTION
   lpCriticalSection);

User-Defined Types:

[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
public struct CRITICAL_SECTION
{
    IntPtr DebugInfo;
    long LockCount;
    long RecursionCount;
    IntPtr OwningThread;
    IntPtr LockSemaphore;
    ulong SpinCount;
}

Notes:

None.

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Sample Code:

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Alternative Managed API:

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