Function SocketRecv() Professional

Receives data from a connected socket.

SocketRecv( <nSocket>  , ;
            @<cBuffer> , ;
            [<nLength>], ;
            [<nFlag>]  , ;
            [@<nError>]  ) --> nBytesRead
This is a numeric socket descriptor identifying a connected socket.
A character string serving as buffer for the incoming data must be passed by reference.
Optionally, the number of bytes to read can be specified. This parameter defaults to Len(<cBuffer>).
#define constants from the file SOCKET.CH are used for this parameter. It specifies the way in which the call is made.
Constants for data retrieval
Constant Description
MSG_NORMAL *) Copy incoming data to <cBuffer> and remove copied data from the input queue.
MSG_PEEK Copy incoming data to <cBuffer> and leave the data in the input queue.
MSG_OOB Process out-of-band data.
  1. default
If this parameter is passed by reference to the function, it gets assigned a numeric error code when the function fails. #define constants beginning with WSAE are available in the file SOCKET.CH to identify an error condition.

Returns the number of bytes read from the input queue or 0 in case of a failure.


This function receives data on a connected datagram or stream socket and copies it into a buffer that must be passed by reference. The number of bytes read from the input queue is returned. If no data is available, the function blocks waiting for a message to arrive, unless the socket is in nonblocking mode. When a datagram is received that is too long to fit into the buffer, excess data is discarded.


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