Working with Sockets Index

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This section has been revised to describe System.Win.ScktComp instead of Web.Win.Sockets, which was removed from the product in XE6.
However, Web.Win.Sockets continues to be delivered as a VCL sample named InetWinSockets. You can use Web.Win.Sockets in RAD Studio by opening the InetWinSockets sample, right-clicking the .bpl in the Project Manager, and installing the Web.Win.Sockets components (TTcpClient, TTcpServer, and TUdpSocket, in the Internet category on the Tool Palette). For documentation on these components, see the XE5 docwiki: http://docwiki.embarcadero.com/RADStudio/XE5/en/Working_with_sockets_Index

The InetWinSockets product sample is installed by default in C:\Users\Public\Documents\Embarcadero\Studio\23.0\Samples\Object Pascal\VCL.

• Instead of Web.Win.Sockets, consider using the existing comparable RTL sockets solutions in the System.Win.ScktComp unit, such as:
  • TClientSocket
  • TClientWinSocket
  • TServerClientWinSocket
  • TServerSocket
  • TServerWinSocket

Topics

• Working with Sockets
  • Installing Socket Components
  • Implementing Services Overview
    • Understanding Service Protocols
    • Services and Ports
  • Types of Socket Connections
    • Client Connections
    • Listening Connections
    • Server Connections
  • Describing Sockets
    • Describing the Host
    • Using Ports
  • Using Socket Components - Overview
    • Getting Information About the Client or Server Socket Connection
    • Using Client Sockets
      • Specifying the Desired Server
      • Forming the Connection
      • Getting Information About the Client Socket Connection
      • Closing the Connection
    • Using Server Sockets
      • Specifying the Port
      • Listening for Client Requests
      • Connecting to Clients
      • Closing Server Connections Overview
  • Responding to Socket Events
    • Error Events
    • Client Events
    • Server Events
  • Reading and Writing Over Socket Connections - Overview
    • Non-blocking Connections
      • Reading and Writing Events
    • Blocking Connections