Delphi is a form of Object Pascal that is most commonly known due to Borland Delphi that was popular in the 1990's.

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2answers
139 views

Moving old desktop application to a robust platform [closed]

Several years ago I wrote a desktop application, a small accounting system, in Delphi 7, that is in user in a medium-sized company. The code belongs to me. I ported another Accounting system that I ...
2
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0answers
316 views

Why does the .NET framework have no concept of classes as first-class types?

It's well known to those familiar with the history that C# and the .NET framework started out as essentially "Delphi rewritten to feel like Java," architected by the chief developer behind Delphi, ...
2
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1answer
819 views

Best practices for implementing MVVM and MVC in delphi Pascal

I'm a Delphi pascal programmer, I use the latest Embarcadero delphi XE, and I would like to take advantage of design patterns such as Model view controller and model view view-model. However, there ...
0
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2answers
219 views

Delphi 7 using RAM for database

I have an existing database app written in D7 with apollo databases. The client has given me a fast desktop with 24gb ram Can I somehow load the database files into ram to speed up processing? With ...
1
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1answer
75 views

Is it a bad idea to have many protected variables, events and procedures in a unit?

I am writing a full fledged p2p networking library on top of Indy's UDP server with an intention of publishing it online. The design I have implemented has a P2P manager ( TIdUDPServer ) which can act ...
1
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2answers
246 views

Are all race conditions worth fixing? [closed]

I just wrote the following piece of code (in delphi): procedure Update(Value: Integer); begin // If the last update was yesterday, replace yesterday value if CompareDate(FLastUpdate,Now) <> ...
0
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2answers
99 views

Locking techniques

Delphi RAD libraries implement many thread friendly objects in a way which forces one to declare another object for storing the reference returned by that object's locking method. The object thus ...
0
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1answer
32 views

Difference between TSimpleRWSync's BeginWrite and BeginRead methods?

I have recently switched to TSimpleRWSync from TRTLCriticalSection. The methods BeginRead and BeginWrite confuse me as wherever I read help, they seemingly do the same thing i.e. acquire the critical ...
1
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1answer
117 views

Non-Recursive vs Recursive Locks?

I am thinking of using non-recursive locks; I have found them to be having performance superiority over the standard recursive locks (e.g. SimpleRWSync). I have mainly been using critical sections but ...
1
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0answers
90 views

Can I use dynamic packages in Delphi if I plan to build my application for cross platform usage?

Now I am thinking about architecture of my program. I plan to provide one not only for Desktop usage, but for mobile platforms as well. I want to create a bpl package as separate file. That is I want ...
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1answer
575 views

How is Delphi going on the market? Is it worth yet to make a project in Delphi? [closed]

I use Delphi since 1999 because it is visual, fast, helpful and committed to good programming roles. That's what I tell my friends in the university and interviewer when I apply for a job in any ...
0
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2answers
236 views

Is it good practice on server/client systems to automatically install updates?

I'm working on an automated update system for a legacy server/client software package written in Delphi. The way I'm designing it is so the client's (customer's) server machine runs a service which... ...
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1answer
255 views

Why did Embarcadero make me sign a waiver?

Just signed in to the Embarcadero Developer Network and got this: EXPORT CONTROLS ON EMBARCADERO SOFTWARE Your EDN membership and access to Embarcadero Software is subject to your agreement to ...
7
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1answer
296 views

What is the justification of use .inc files to declare and implement code is some Delphi RTL units?

Starting with #Delphi #XE2 many of the new RTL units related to Vcl styles, OSX and so on, uses inc files to declare types, classes and implement code (just like the FPC does), what is the ...
0
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1answer
137 views

Would it be possible to publish my code on an official site with a third-party library?

I'm building a rather large and extensive wrapper in Delphi for an email system called Mandrill. There are wrappers for this API in many other languages, but not for Delphi. So, I'm hoping to produce ...
2
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2answers
530 views

Restrictions Calling DLLs Across Technologies?

I want to call a DLL in my programming language of 'choice'. The documentation surrounding this clearly states that it must be a 32-bit DLL written in C, C++ or Delphi. But I wanted to call a DLL ...
5
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1answer
299 views

Delphi Build Server - Do I need to check in .dres files?

We're using final builder to build a Delphi project and the person managing the build server noticed that projects with no .dres files were not building because they're not in SVN and because they're ...
2
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2answers
585 views

Scalability: How does splitting a database table work on different replicated SQL Servers?

I would like to know more about the general concepts behind dividing data of a database into different servers. For example, suppose I have a SQL Server database which has a massive table. Assume one ...
4
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1answer
380 views

Multi-platform design with Delphi, Java, MySQL and CouchDB

What are the most obvious drawbacks to this idea for an enterprise(ish) model using the following technologies. Browser based and native developed GUI using Delphi to connect to Datasnap server ...
4
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1answer
537 views

How to make a legacy system time-zone sensitive?

I need to implement time zones in a very large and old Delphi system, where there's a central SQL Server database and possibly hundreds of client installations around the world in different time ...
3
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1answer
1k views

Understanding HTTP Cookies in Indy 10 for Delphi XE2

I have been working with Indy 10 HTTP Servers / Clients lately in Delphi XE2, and I need to make sure I'm understanding session management correctly. In the server, I have a "bucket" of sessions, ...
1
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1answer
129 views

Strategy for clients to retrieve real-time log from HTTP server

I have an HTTP Server Service application which has its own logging mechanism. It's written in Delphi. I would like to provide a way for multiple clients to connect to this service and get a real-time ...
1
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3answers
761 views

Methodology behind fetching large XML data sets in pieces

I am working on an HTTP Server in Delphi which simply sends back a custom XML dataset. I am not following any type of standard formatting, such as SOAP. I have the system working seamlessly, except ...
0
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2answers
345 views

How to access an encrypted INI file from C on an embedded system with little RAM

I want to encrypt an INI file using a Delphi program on a Windows PC. Then I need to decrypt & access it in C on an embedded system with little RAM. I will do that once & fetch all info; I ...
5
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1answer
468 views

Scripting custom drawing in Delphi application with IF/THEN/ELSE statements?

I'm building a Delphi application which displays a blueprint of a building, including doors, windows, wiring, lighting, outlets, switches, etc. I have implemented a very lightweight script of my own ...
3
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2answers
285 views

Memory concerns while plotting escape from DLL Hell in Delphi [closed]

I work on a program with about 50 DLLs that are loaded from one executable, it's an old organically grown program where the only rationale for creating a new DLL is that one previously didn't exist to ...
16
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2answers
534 views

Is there a precedent for the license on a compiler restricting the kind of development you can use it for?

It was recently let slip that the new EULA for Delphi XE3 will prohibit Client Server development with the Professional edition without the additional purchase of a Client Server license pack. This is ...
5
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2answers
385 views

How to call modern Pascal?

Should the developers who creates programs with Delphi, FPC, Lazarus agree with the name of the language? This struck me since every possible variation not only adds confusion for new programmers, ...
2
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0answers
416 views

Provide an OnChange event for an internal property which is controlled externally?

For fun and by request I am updating this ImageGrid component, a kind of listbox for images that has a FileNames property of type TStrings. For ease of writing, I have been misusing its ...
1
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3answers
281 views

Converting mysql and SQLServer tables quickly in an update utility

The requirements are to take an existing list of identical tables (AAA0001 - AAA9999) which generally don't meed our current requirements and need to be swapped out with three tables (XXX0001-XXX999, ...
3
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2answers
411 views

How to Document the Security/Encryption Code of an Application

I am working on an application that I developed a security layer for. It uses the hardware ID of the hard drive, MAC address and another hardware serial key, to lock the software a particular piece of ...
3
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2answers
783 views

Mobile applications in Delphi

Many of us know that Delphi executables are little bit gigantic, but again it is acceptable as nowadays 1.5 mb is not a big issue in PC. But what about mobile devices? Currently Firemonkey supports ...
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4answers
644 views

What do neglected O'Reilly book topics tell us about that topic?

Does anybody know how O'Reilly chooses topics to publish? For some reason, I don't see how it can be based on demand. The reason, I ask, is because they haven't published a Delphi book in almost 12 ...
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1answer
194 views

How to layout class definition when inheriting from multiple interfaces

Given two interface definitions ... IOmniWorkItem = interface ['{3CE2762F-B7A3-4490-BF22-2109C042EAD1}'] function GetData: TOmniValue; function GetResult: TOmniValue; function GetUniqueID: ...
18
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6answers
2k views

Where can I find inspiration for a good user interface? [closed]

I've got a mental block as far as desigining the main screen interface for a desktop application that I'm currently upgrading. When I first developed this program the screen resolution was 640 X 480. ...
15
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6answers
2k views

From Delphi to C# for Dummies

I'm a Delphi and C# coder and have been given the assignment to introduce the most fundamental concepts of .Net/C# to my coworkers in some trainings. They are seasoned Delphi Win32 coders but still ...
60
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11answers
2k views

Best Practices for Handing over Legacy Code

In a couple of months a colleague will be moving on to a new project and I will be inheriting one of his projects. To prepare, I have already ordered Michael Feathers' Working Effectively with Legacy ...
3
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5answers
866 views

Functions with side-effects in Delphi/Pascal

What is the proper approach to functions that have side-effects in Delphi/Pascal? For example, I could have a boolean function DeleteFile that returns True if the file was deleted and False ...
3
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3answers
222 views

What is the best strategy for quickly implementing small business applications?

I'm not a software developer, but I have previously developed a project-specific Access application for another employer. My current employer would like me to help organize their workflow and data for ...
13
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7answers
7k views

How is Delphi XE2 going to work across platforms?

So I've been reading a little about Delphi XE2 and I probably will go to the world tour thing in Chicago coming up later this month and ask this question if no one can answer it here. What I wonder ...
3
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1answer
292 views

How did Delphi influence the .NET Framework?

As opposed to influence on the C# language, did Delphi influence the .NET Framework too? At first glance .NET is Microsoft's version of Java, but .NET has properties similar to Delphi. Are there other ...
6
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2answers
389 views

In what specific ways did Delphi influence the C# language

I am specifically looking for language influences (as opposed to framework). At first glance C# seems to be an evolution of C/C++ or Java. But we know C# has the same designer as Delphi, and he even ...
16
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13answers
2k views

What features contributed to the evolution of Pascal?

I am compiling a detailed history of the Pascal language, and there are a few details I am missing. There are so many features today that we take for granted. What features significantly contributed ...
8
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4answers
695 views

Is integer used too much as a data type?

Do most application developers use signed integers in places where they really mean to use unsigned integers? I do it all the time, so do my co-workers. I haven't seen a lot of other extensive ...
4
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2answers
713 views

What are the career options in Delphi [closed]

I am a fresher working in an Antivirus company in India. We work in Delphi 7. now i know that delphi is not very widely used. My concern is that I will be something of a pariah in the industry ...
7
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5answers
5k views

What is needed to deploy an application that uses Microsofts new LocalDB?

I'd like to know what microsoft components need to be installed for this new LocalDB to run on a users machine. Now in CTP3: SQL Server Express LocalDB LocalDB is a new lightweight deployment ...
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1answer
1k views

Codeigniter + JQuery + Processing.js to replace a Delphi App

So, I've got a mandate to make our aged trillion lined Delphi app web based and it needs to make heavy use of the <canvas> element (HTML5 compatibility doesn't seem to be a big issue since we ...
65
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17answers
35k views

What happened to Borland Delphi? [closed]

I have the impression that Delphi isn't very popular anymore. But now at work I had to make some changes to an old Delphi program that we are still using. I used Borland Developer Studio 2006 and it ...
13
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2answers
1k views

Which of these 3 languages is easiest to convert to Delphi? [closed]

I am intending to purchase some source code for my Delphi program. It is not too big an algorithm, but it is not available in Delphi and I'll have to translate it to Delphi. However, I have not ...
5
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2answers
500 views

Library version control best practices

I may be violating some StackOverflow terms by asking a question which is more likely to yield discussion than a clean answer. Here goes, however. I've developed some software for a small company ...