HTTP Get, HTTP Post software component for Borland Delphi for Windows
ActiveSocket is a Network Communication component for Windows Developers. It runs on any 32 bit and 64 bit Windows Platform, incl. Windows 7, Windows 2008, Windows 2003, Windows 2000, Windows Vista and Windows XP.It features many IP protocols, incl.: SSH (Secure Shell), RSH (Remote Shell), HTTP(s), FTP, ICMP Ping, NTP, SNMP v1/v2c (Get,GetNext,Set), SNMP MIB translation, SNMP Trap Sender, SNMP Trap Receiver, Telnet, DNS, TCP, UDP, IP-to-Country, Wake-On-LAN and more. Samples are included many popular development platforms, incl. Visual C# .NET, Visual Basic .NET, ASP .NET, Visual Basic, Visual C/C++, ASP, Java, Javascript, PHP, Borland Delphi, Borland C++ Builder, ColdFusion.
HTTP Get and HTTP Post can be well integrated into Borland Delphi environments. This document describes how the ActiveSocket Http object can be integrated into Borland Delphi projects.
The most important functions of the Http object are:
- Connect - connect to the (remote) HTTP web server on port 80 or any alternate port; optionally, use proxy credentials to use a proxy server; optionally, specify a web account and password for password protected web sites
- Disconnect - to diconnect after a connect call;
- ReadData - read all data from a web page;
- WriteData - write data to a web page.
Step 1: Download and install the ActiveSocket Toolkit
Download the ActiveSocket from the ActiveXperts Download Site and start the installation. The installation guides you through the installation process.
Step 2: Create a new Delphi Project
Launch Borland Delphi (for instance 'Delphi 2005') from the Start menu. Choose 'New' from the 'File' menu and select your preferred kind of application, for instance: 'VCL Forms Application - Delphi for Win32'. A new Form is displayed in the workspace.
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Step 3: Refer to the ActiveSocket Library and create the objects
Now that a new project has been created, you must add a reference to ActiveSocket in the project to be able to use the ActiveSocket object. To do so, choose 'Import Component...' from the 'Component' menu. The Import Components' dialog appears. Select 'Import a Type Library':
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In the 'Registered Type Libraries' page, select 'ActiveSocket 2.4 Type Library' and click 'Next':
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In the 'Components' page, leave all fields default and click 'Next':
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In the 'Install' page, select 'Create Unit' and click 'Next':
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The interface code is generated now and is shown in the ASOCKETLib_TLB tab of the project.
Step 4: Declare and create the object
From the Project Manager, open Unit1.bas and add the ASOCKETLib_TLB to the 'Uses' statement to refer to the ActiveSocket library:
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In the 'private' or 'public' section, declare the following objects:
objHttp : IHttp
You can now create the objects, for instance in the 'FormCreate' function:
objHttp := THttp.Create(Form1).DefaultInterface;