Articles

Information about how check the registry to find out which versions of Delphi / RAD Studio are installed on a computer

Sometimes you need to be able to customise how a TWebBrowser control handles drag and drop, or you may need to prevent the control from accepting files dropped it. This article explains how.

The standard Windows API method of handling drag and drop is fine for catching files dragged from Explorer, but how do we handle data dragged and dropped from other applications? This article explains.

We often need to detect the version and various other characteristics of the operating system from our applications. Here's how to do this from Delphi.

When using a TWebBrowser control to display a user interface you may need to call your program's Delphi cod in response to user input in the TWebBrowser or to get information to be displayed by the control. This article shows how.

Sometimes it is necessary to call JavaScript functions embedded within a document displayed in a TWebBrowser control. Here's how.

Executable files can contain a resource containing version information. The Windows API provides tools for extracting the information. Here's how to use it.

When you click inside a TWebBrowser control, it does not become the active control, unlike other controls. This article shows how to detect clicks in the control and make it the form's active control.

When we use TWebBroswer we often want to change the way it appears and acts to fit in to our application's look and feel. Here's how to override the IE context menu, change the border style, show or hide scroll bars and style the content without changing the HTML document.

When you double click many components at design time Delphi creates an empty event handler for the default event. Sometimes you need to specify a different default event than that used by Delphi. Here's how.

TListView's OnCustomDraw, OnCustomDrawItem and OnCustomDrawSubItems events are useful to customise the appearance on a list view control without having to handle all the painting yourself. This article shows how to use these events in a report style list view control.

Information on the changes that have to be made to Delphi's help files in order for your help files to be integrated with the Delphi help system.

A presentation of the development of a wrapper class for TWebBrowser that simplifies navigation, the loading and saving of HTML when using the control.

Describes how to ensure only a single instance of an application runs and how to pass command line data to a running program instance.

A look at adding an entry to Explorer's Send To menu and handling files sent to an application using the menu.

A guide to using the Windows API to catch and process files dropped from Windows Explorer.

A review of the techniques used to create HTML resources for embedding in a program, along with a discussion of Internet Explorer's use of the res:// protocol to access and display embedded HTML.

Sometimes we need need to know when the content of the clipboard has changed. This article shows how.

This article explains how to detect if a file is a DOS program or a 16 bit or 32 bit Windows executable program or DLL.

Here is an alternative way of embedding data in a program by appending the data to the end of the executable file as a payload. In the article we create two classes to help read and write the data.

Every Windows process gets a copy of some environment variables. Here's how to read and update them.

Here's the basis for a set of classes that wrap around any TStream object to allow you to write formatted data to any stream.

When I open an application I like to have it remember the size and position of its window when it was last closed. Here's how to do it with Delphi forms.

Having embedded files and/or data in your executable (article #2) you need to get them out again - read on!

Its sometimes useful to be able to distribute read-only files embedded in your programs. This article explains why and discusses how.

Sometimes we need a non-windowed component to receive Windows messages. Here's how and why.