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NativeOverlapped Structure

Provides an explicit layout that is visible from unmanaged code and that will have the same layout as the Win32 OVERLAPPED structure with additional reserved fields at the end.

Namespace:  System.Threading
Assembly:  mscorlib (in mscorlib.dll)

[ComVisibleAttribute(true)]
public struct NativeOverlapped

The NativeOverlapped type exposes the following members.

  NameDescription
Public methodEqualsIndicates whether this instance and a specified object are equal. (Inherited from ValueType.)
Public methodGetHashCodeReturns the hash code for this instance. (Inherited from ValueType.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodToStringReturns the fully qualified type name of this instance. (Inherited from ValueType.)
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  NameDescription
Public fieldEventHandleSpecifies the handle to an event set to the signaled state when the operation is complete. The calling process must set this member either to zero or to a valid event handle before calling any overlapped functions.
Public fieldInternalHighSpecifies the length of the data transferred. Reserved for operating system use.
Public fieldInternalLowSpecifies a system-dependent status. Reserved for operating system use.
Public fieldOffsetHighSpecifies the high word of the byte offset at which to start the transfer.
Public fieldOffsetLowSpecifies a file position at which to start the transfer.
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The NativeOverlapped.NET Framework value type represents an unmanaged version of the Win32 OVERLAPPED structure. The layout of this structure must be identical to OVERLAPPED. Four additional DWORDs are reserved at the end.

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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