PipeStream.BeginRead Method (Byte, Int32, Int32, AsyncCallback, Object)
Begins an asynchronous read operation.
Assembly: System.Core (in System.Core.dll)
[SecurityCriticalAttribute] [HostProtectionAttribute(SecurityAction.LinkDemand, ExternalThreading = true)] public override IAsyncResult BeginRead( byte buffer, int offset, int count, AsyncCallback callback, object state )
The buffer to read data into.
The byte offset in buffer at which to begin reading.
The maximum number of bytes to read.
The method to call when the asynchronous read operation is completed.
A user-provided object that distinguishes this particular asynchronous read request from other requests.
buffer is null.
offset is less than 0.
count is less than 0.
count is greater than the number of bytes available in buffer.
The pipe is closed.
The pipe does not support read operations.
The pipe is disconnected, waiting to connect, or the handle has not been set.
The pipe is broken or another I/O error occurred.
Pass the returned IAsyncResult object to the EndRead method to determine how many bytes were read and to release operating system resources used for reading. EndRead must be called once for every call to . This can be done either in the same code that called or in a callback that is passed to .
If the pipe is closed or an invalid argument is passed to EndRead method., the appropriate exceptions are raised immediately. Errors that occur during an asynchronous read request occur on the thread pool thread that is performing the request. The exceptions are raised when the code calls the
Available since 3.5