readBinary(length: Integer): Binary;
The readBinary method of the Connection class reads binary data from the connection and returns when the number of bytes of data specified in the length parameter have been read or when a block of data is received, depending on the setting of the fillReadBuffer property. This method can be called only when the value of the state property is Connected (2).
Only one synchronous or asynchronous read operation can be performed at one time on a connection. See also the Connection class timeout property.
The following example shows the use of the readBinary method.
openButton_click(btn: Button input) updating;
vars
pos : Integer;
bin : Binary;
begin
if openButton.caption = $X_Open then
self.connection.name := connectionName.text;
self.connection.open;
openButton.caption := $X_OK;
listenButton.caption := $X_Close;
else
if sendIt.value then
if loop.value then
self.multiSend;
else
self.connection.writeBinary(input.text.Binary);
endif;
elseif receiveIt.value then
if loop.value then
self.multiReceive;
else
self.connection.fillReadBuffer := false;
bin := self.connection.readBinary(200);
sl1.caption := bin.String;
endif;
endif;
endif;
end;