IOCompletionCallback IOCompletionCallback IOCompletionCallback IOCompletionCallback Delegate

Definition

Namespace:
System.Threading System.Threading System.Threading System.Threading
Assemblies:
System.Threading.Overlapped.dll, mscorlib.dll, netstandard.dll

Important

This API is not CLS-compliant.

Receives the error code, number of bytes, and overlapped value type when an I/O operation completes on the thread pool.

public delegate void IOCompletionCallback(System::UInt32 errorCode, System::UInt32 numBytes, NativeOverlapped* pOVERLAP);
[System.CLSCompliant(false)]
[System.Runtime.InteropServices.ComVisible(true)]
[System.Security.SecurityCritical]
public delegate void IOCompletionCallback(uint errorCode, uint numBytes, NativeOverlapped* pOVERLAP);
type IOCompletionCallback = delegate of uint32 * uint32 * nativeptr<NativeOverlapped> -> unit
Public Delegate Sub IOCompletionCallback(errorCode As UInteger, numBytes As UInteger, pOVERLAP As NativeOverlapped*)

Parameters

errorCode
UInt32 UInt32 UInt32 UInt32

The error code.

numBytes
UInt32 UInt32 UInt32 UInt32

The number of bytes that are transferred.

pOVERLAP
NativeOverlapped*

A NativeOverlapped representing an unmanaged pointer to the native overlapped value type.

Inheritance
ObjectObjectObjectObject
DelegateDelegateDelegateDelegate
IOCompletionCallbackIOCompletionCallbackIOCompletionCallbackIOCompletionCallback
Attributes
CLSCompliantAttribute ComVisibleAttribute SecurityCriticalAttribute

Security

SecurityCriticalAttribute
Requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

Applies to