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…
Building and consuming web services with Delphi 2009
December 18, 2008
Author: Pawe Gowacki
Do you remember that Delphi 6 was the first IDE in the market with Web Services support? This trend continues and Delphi 2009 supports building web service servers and clients:-) In this post I’m going to describe all steps neccessary to build…
Writing games with Delphi. Ideas?
December 9, 2008
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…
A "Nullable" Post
September 18, 2008
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…
Dynamic Creation of IntraWeb Components
March 5, 2008
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…
Installing ActiveX Controls in RAD Studio 2007
November 29, 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…
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!!”…
Making "Stay-on-top-forms" do want you want
September 8, 2004
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…
Playing WAV and MIDI files Using DirectX Audio with Delphi
January 26, 2004
Author: Embarcadero USA
DirectX Overview
Conducting a survey about what game programming
API used by most of game softwares running on PC, I am sure that, DirectX will be on
top list. Nowdays, DirectX had become a mature API for game programming
on…
Error 'Could Not Load SSL Library' when using Indy SSL components
October 30, 2003
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…