Internet Direct (Indy) Version 9.0.1 Beta
TIdTCPConnection.RecvBufferSize
Indicates the current size of the default receive buffer for the connection.

property RecvBufferSize: Integer;
Description
RecvBufferSize is an Integer property that represents the number of bytes currently allocated to the default receive buffer used for the connection.

The default value for RecvBufferSize is 8192 bytes, and is asssigned in Create.

Use ExtractXBytesFromBuffer to remove data from the receive buffer.