Delphi

SQLDA missing or incorrect version, or incorrect number/type of variables

Author: Craig Stuntz The error in the title comes from InterBase. Actually, the full error is: [DataDirect][ODBC InterBase driver][InterBase]Dynamic SQL Error, SQL error code = -804, SQLDA missing or incorrect version, or incorrect number/type of variables. I’ve seen this error before when the wrong InterBase client (gds32.dll) version was loaded by the application, or when the wrong number…
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Delphi

Writing games with Delphi. Ideas?

Author: Aaron Rosenberg How would you approach creating a game with Delphi? I keep playing with Delphi Prism and recently downloaded XNA Game Studio 3.0. It installs very nicely into Delphi Prism. I wonder what is the most commonly used software for creating games that will…
Delphi

A "Nullable" Post

Author: Barry K21557 [This blog post is by Allen Bauer, but during the blog engine migration was attributed to the wrong author.] Solving problems can be fun and challenging. What is really challenging is solving a problem using only the tools at hand. During the development of Delphi 2009, there were several language features that were dropped in favor of generics and anonymous methods. One such…
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Delphi

Dynamic Creation of IntraWeb Components

Author: Craig Stuntz For the past couple of days I’ve been working on an experimental IntraWeb (a.k.a., “VCL for the Web”) project. Since I typically generate user interfaces dynamically, I wanted to see how that worked with IntraWeb. On the surface, it’s…
Delphi

Installing ActiveX Controls in RAD Studio 2007

Author: Craig Stuntz The procedure for installing ActiveX controls on the Delphi/RAD Studio 2007 component palette is apparently confusing to some users of older versions of Delphi. So here’s a simple example. In this example, I’m installing the type libraries…
Delphi

Automating Excel with Delphi and Creating Value from Programming

Author: Germán Estévez Why do we write applications? One answer could be “for fun”, but not always we are in such a comfortable situation of doing something without a real (business) reason. This is where “Creating Value from Programming” comes in. Recently we’ve done a joint session with Jeroen Pluimers on the Software Developer Event “Office Stuff!!&#8221…
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Delphi

Making "Stay-on-top-forms" do want you want

Author: Embarcadero USA Delphi supports this type of forms by providing the FormStyle property for the TForm class. All you have to do is to set this property to fsStayOnTop. So why did I write this article? Well, there are a few things to consider: Using fsStayOnTop…
Delphi

Error 'Could Not Load SSL Library' when using Indy SSL components

Author: Embarcadero USA Problem: When using the Indy SSL components, an error ‘Could Not Load SSL Library’ is raised. Answer: This error is raised because you must have OpenSSL installed on your machine in order to use the IndySSL components. At runtime, Indy attempts to load libeay32.dll and ssleay32.dll. Due to restrictions on exporting SSL technology, these .dll’s are…
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