Author: Allen
Ever since before Delphi 1, the (then Delphi only) RAD Studio IDE has been full of home-grown multicast event class types. I usually refer to these as an “event bus.” This is from my hardware days when I designed microcontroller based security/access control equipment. A CPU has an “address bus” and a “data bus” which can have one sender and any…
Author: Markus Humm
With Tiburon, I can useUnicode characterswith VCL components like TMemo, TListBox, TComboBox (and others that contain string lists). Howcan Iload the stringsfrom a file and savethe stringsto a file?
Author: Andreano Lanusse T1394
As you know Embarcadero is a database company, now a database and developer company. A number of great database tools are coming, one of these tools is ER/Studio, which is a tool specialized in database modeling.
ER/Studio is independent of…
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 fairly similar to the regular VCL, but there are some important differences.
Rule number one is that all components you create…
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…
Author: deepak S1409
Recently, I was exploring writing an ADO SQL logging tool (sorta like BDE monitor) – more details on that later – which would show SQL statements on the screen as they ran. All was well until I figured I needed to be able to see my SQL logging form even when a Modal window was being displayed. TForm.ShowModal() disables all other windows in the current thread, so…
Author: Rudy Velthuis
I have often been asked about the quotes I use when writing to the newsgroups. These come from a file called quotes.txt, and are placed under my messages by my news client, XanaNews, by some kind of random process. Although, sometimes the quotes are so…
Author: deepak S1409
Download the code for this white paper (dlprogress.zip, 12 KB)
Abstract
This paper talks about how you can show a download “progress” bar (like many download utilities do) when using SOAP to transfer data. I’ve used Delphi 7 in this…
Author: deepak S1409
From a recent thread in borland.public.delphi.nativeapi.win32:
There’s a problem in the way Delphi handles multiple open forms. Delphi applications can have multiple forms, and you will notice that each form does not appear on the task bar. Delphi forms do not have the WS_EX_APPWINDOW style set – this style is required if a window needs to appear in the task bar.
