Are we connected to the Internet?
Here's how to check whether you are connected to the Internet.
Intranet.zip
Download a file from the Internet with progress indicator
If you need to save the contents of a specified URL to a file - and be able to track the download progress,use the TDownLoadURL.While TDownLoadURL is writing to the specified file,it periodically generates an OnDownloadProgress event,so that you can provid...
How to get get IE favorites
The GetIEFavourites function called from the OnClick event of a button returns a list of all the favorites from your Internet Explorer in a ListBox.
List All Network Drives
To show a list of all mapped network drives,use the GetNetworkDriveMappings function.Example usage: .
Retrieving all image links from an HTML document
Here's how to obtain all image links from an HTML document.The GetImageLinks procedure fills a TStrings object with the value of the SRC property of the IMG HTML element.Note: if the images have relative links,you will have to parse the document url and pr...
Implementing a Versatile DNS Server in Python: Handling A, AAAA, CNAME, and TXT Records
Supporting AAAA records, which are used for IPv6 addresses, is a straightforward extension of the previous examples. The AAAA record type is essential for modern applications that operate over IPv6 networks. Here's how you can modify the existing Python DN...
Building a Basic DNS Server in PHP/Python: A Beginner's Guide
Creating a full-fledged DNS server in PHP is not recommended for production environments due to performance and security concerns. DNS servers require low-level networking capabilities and efficient handling of DNS protocol messages, which PHP is not optim...
Dynamic DNS Made Easy: Building a Python-Based Solution
Creating a dynamic DNS (Domain Name System) service in Python involves several components: a server that listens for DNS queries, a database to store mappings between domain names and IP addresses, and functionality to update these mappings dynamically. Be...
Exploring the Depths of Data Transfer: sendfile vs. kTLS
When optimizing the performance of web servers and ensuring secure data transmission, two technologies often come into play: sendfile and Kernel TLS (kTLS). Both are designed to enhance efficiency in different ways, primarily in the context of sending data...
Delphi code to send data to web server based on POST method
To send content using the POST method in Delphi, you can use the TIdHTTP component from the Indy library, which is a popular library for internet components in Delphi. Below is an example Delphi code snippet demonstrating how to send content using the POST...
I want to select directory(folder) not file. How can I do that ?
Delphi provides function for directory(folder) selection as following. The above function is tested on Delphi 2009,but UI is more like windows 3.1.So I recommend you to use below function which calls shell API on Microsoft Windows System.
Find File at certain directory in Delphi
This function we show below receives as parameters a file specification (like for example 'C: mp*.tmp' or 'C:*' if you want to search the entire hard disk.) and optionally a set of attributes (exactly as Delphi's FindFirst function),and it returs a StringL...
Disable Mouse and Keyboard from Delphi Code
The BlockInput API function blocks keyboard and mouse input events from reaching applications.Place a Button (name: "Button1") on a form (name: "Form1") and use this code for the button's OnClick event handler.Once you click the button your mouse and keybo...
How to set the "home page" for the Internet Explorer from Delphi code
Here's how to change the home page for the IE from Delphi code (IE-Tools-Internet options.) .
Reading a directory content
The following example lists all files and subdirectories of the C:Windows directory into a TListBox called ListBox1:Usage:Followings are the source code for FindAll procedure.
Convert a mapped drive to a full UNC path
Universal / Uniform Naming Convention.A UNC path describes the location of a volume,directory,or file.The format for a UNC path is \servervolumedirectoryfile and is not case-sensitive.For example:Rather than describe the location of a file or directory by ...
Browse for Computers, Folders, Files and Printers
By using the SHBrowseForFolder Windows API function and Delphi we can invoke a Windows system dialog used to browse for files and folders on users hard drive as well as network computers and printers. First,let's look at what SHBrowseForFolder needs.Here's...