Begins an asynchronous write operation that writes bytes from the specified buffer to the stream.
- buffer
- A byte array that supplies the bytes to be written to the stream.
- offset
- The zero-based location in buffer at which to begin reading bytes to be written to the stream.
- count
- An int value that specifies the number of bytes to read from buffer.
- asyncCallback
- An AsyncCallback delegate that references the method to invoke when the write operation is complete.
- asyncState
- A user-defined object that contains information about the write operation. This object is passed to the asyncCallback delegate when the operation completes.
An IAsyncResult object indicating the status of the asynchronous operation.