Delphi 10.1 Berlin Update 2 – startup problems and fixes

Just a quick note to leave documentation for other Delphi and C++Builder developers around here.

After installing the RAD Studio 10.1 Berlin Update 2 my RAD Studio installation was broken.

The installation reach the end but when I start RAD Studio I get a lot of messages of “Package raise exception XXX do you want to load the next time?”. All the dbx related packages raises that exception. Disabling all the dbx packages I get my RAD Studio running but it is half-working… here and there there are AV, and if I try to reinstall the dbx related packages I get the following error.

pasted-image-at-2016_11_17-17_33

Moreover, I cannot use any of the deploy facilities built into the product. The PAClient executable return always “Error 217” even if launched from the command line.

After some struggling with this problem, my friend Stefan Glienke point me to the right direction with the following message: “I think I had some issue with the DBX package in a previous reinstall and IIRC it was because of a misconfigured/corrupt dbx settings file somewhere.”.

That point me to the right direction. I renamed the dbxconnections.ini and the dbxdrivers.ini so that the bpl cannot find them. Restarting RAD Studio I can reenable the dbx related package and the PAClient start to works as well.

So, I closed RAD Studio and opened the inifiles to check where could be the problems. Seems that in some installation/reinstallation/update some keys and section of the ini have been duplicated. So I just fixed the ini removing the duplicated sections and keys, renamed the files with the correct names and restarted RAD Studio.

Now it works.

ITDevCon 2016 – Call4Paper

ITDevCon2016 logo
UPDATE:

ITDevCon2016 will be held next Oct 6th, 7th in Rome (Italy).

The post has been updated as well.

Dear potential ITDevCon speaker,

As every year (but 2015), I’m building the agenda for next ITDevCon that will be held next October 6th, 7th in Rome (Italy), in a new location, the bit Time group headquarter!

This will be the 7th conference edition and will be organized by bit Time Professionals, part of the bit Time Group.

The call for papers are officially open right now, so if you want to propose some speeches, I’ll be glad to see them.

Send your Call4Paper to d.teti@bittime.it.

As usual, for the Call4Paper I need:

  • Title (for every talk)
  • Abstract (for every talk)
  • Difficulty level (for every talk. Difficulty level is a scale from 1 to 3 with the following mean: introduction, intermediate, advanced)
  • Speaker’s photo
  • Speaker’s profile

I’m looking forward to your proposal. The call4papers ends at Jul 31st, 2016 but if you have *VERY* interesting topic to propose, propose it… I’ll try to arrange the schedule and fit it in the agenda.

Proposals will be evaluated and the speakers will be contacted ASAP.

This year topics will be the following:

TOPICS

  • What’s new in the latest Delphi versions
  • IoT (Internet of Things) solutions
  • FireMonkey platform
  • MacOSX development
  • Android development
  • iOS development
  • Windows development
  • Mobile development (Android and/or iOS)
  • Develop UIs for different devices (smartphones, tablets, TV, watch etc)
  • LiveBindings ®
  • Delphi best practices
  • Design Patterns
  • Open Source Delphi Frameworks (Spring4d, DelphiMVCFramework etc)
  • Arduino, Raspberry Pi or others similar system
  • Web Application with Delphi
  • Integration with external systems
  • TDD and Unit Tests
  • Agile methodologies
  • ORM and other data access patterns
  • Using NoSQL databases (even to speed up your VCL software)
  • FireDAC
  • UI, UX, optimization for mobile and desktop
  • OOD/OOP
  • Real use cases for extended RTTI, Generics and Anonymous Methods
  • RESTful interfaces design and development
  • Architectures
  • Cool (dev) things that you are doing or that you did in the recent past

Target audience

  • Software architects
  • Software developers
  • Project managers
  • IT managers
  • Trainers

The conference web site is http://www.itdevcon.it

Up to May 31st you can get the ticket at the discounted early bird or 249.00 Euro. After that day the normal ticket price will be 349.00 Euro. Get it!

The ticket includes:

  • 2 conference days
  • Lunches
  • Coffee Breaks
  • Gadgets

Do you want to see a particular topic or have a suggestion for ITDevCon2016? Let me know

As usual one of the most important part of ITDevCon will be the networking between attendees. I know about great collaboration born during ITDevCon. Be there and don’t miss this social opportunity!

Thank you and…  see you at ITDevCon 2016.

Great success for RAD Studio in one of the most important italian government palaces

This week, in one of the most important government palaces in Italy (I cannot say which one), I did a consultancy about mobile development. The internal dev team is currently using Xamarin and they have a blocking problem with it. In the team there is a friend of mine which called me some days ago to know if I know how to solve their problem using Delphi. I told him that the “blocking” problem could be solved with Delphi. The resultant 2 days of consultancy were been quite hard, but the result has been really rewarding. A long standing problem has been elegantely solved using Delphi in a couple of hours.

The problem was about using HTTP client certificates with iOS in a Microsoft architecture, where each user had its own certificate.

I dont know Xamarine so deeply to say if the problem could be elegantly resolved with it as well, but the team is quite smart and skilled, so I think that they have been tried all the documented solutions to face the problem, but without success.

I want to thank the always helpful Jim McKeeth and the great Diego Navarro from Embarcadero, to have help me about this issue. Thank you guys.

 

DataSnap Filters Compendium Updated to Delphi 10 Seattle

Very quick info.

Not tremendous useful today as when developed (Delphi 2010 time frame) but, if someone is still using my DataSnap Filters Compendium (and I know some users heavily use it), now can find the Delphi 10 Seattle version on github. Currently works all the speed test and the server/client test. Consider this as a very stable beta.

Here’s the project repository

https://github.com/danieleteti/dsfc

Echoes From The Past: Message Master For Delphi a.k.a. MM4D

Some years ago, at the Delphi 6/7 timeframe I was working on a client/server program with c.a. 400 forms and 200 units. At that time I needed a simple way to localize in Italian (in primis) and in other languages, all the  standard dialogs (ShowMessage, InputBox, InputQuery etc.). Moreover, I would have liked to give a unique style to them. In addition, I needed to localize that dialogs. Moreover I needed a simple way to show a program of a background operation using a not modal dialog with a simple pattern like the following:

  ...
  ShowStatusPos(STATUS_CAPTION, Point(50, 50), True);
  try
    for i := 1 to 100 do
    begin
      SetupQuery(LMyDataset, i);
      LMyDataset.Open;
      while not LMyDataset.Eof do
      begin
        //do something
        UpdateStatus(i, Format(STATUS_CAPTION + ' %2d%%', [i]));
        LMyDataset.Next;
      end;
      LMyDataset.Close;
    end;
  finally
    CloseStatus;
  end;
  ...

So, after some tests I wrote Message Master for Delphi. MM4D is a smal library which supports all of these features, or at least these features were supported at that time. Indeed, since then I saw many (really many) 3rd-party Delphi/C++Builder written programs which actually use MM4D. However, since then I didn’t supported that library anymore. Now, more or less, 15 years after, a user wrote to my about MM4D support in Delphi 10 Seattle. So, I decided to update the code to let it compile on Delphi 10 Seattle. So, now it is currently supported (even if I dont plan to improve it in any way in the short term). However if someone use it or want to use it and update/upgrade/improve, here’s the github reporitories. I hope I have done something good for all the old time users.

Message Master For Delphi
https://github.com/danieleteti/mm4delphi

In the repositories there is a demo to show all the features of MM4D and there is also a small tool called UnitsAdded.exe which can be used to add the MM4D features to a project automatically (search for Dialogs.pas and, if exists, add MessDlgs after it).
MM4Delphi uses the good XiControls (included). So, still thank you to Eugene Genev for his XiControls.

Migration to github for all my open source projects… done!

Since when Google announced that Google Code will be closed I did start to plan the migration of all my open source projects. Now, the migration is terminated.

In the next days, I’ll add all the contributors too, so that the development can go forward as usual.

These are the projects

  • DelphiMVCFramework
    • if you are reading my Delphi Cookbook, please use this new repository instead of the old SVN one, reported in the book.
  • DORM, the Delphi ORM
  • DelphiRedisClient
  • DelphiDIContainer
  • DelphiSTOMPClient

All the repositories are available on my personal github page https://github.com/danieleteti and, as usual all contributions are welcome.

Enjoy.

 

My “Delphi Cookbook” has been published

Almost an year ago I started to write a book about Delphi for Packt Publishing. Today that book has been published.

Delphi Cookbook Cover
Delphi Cookbook Cover

This book is a cookbook! That’s it, in 328 pages you will find useful (I hope) “recipes” for your day-by-day Delphi job.

Topics of the book

  • Create visually stunning applications using FireMonkey
  • Effectively use LiveBindings with the right OOP approach
  • Create server-side programs to serve RESTful web services and provide data to your mobile apps
  • Develop mobile apps for Android and iOS using well-defined GUI design patterns for a great user experience
  • Build efficient mobile apps that read data from a remote server
  • Call the platform-native API on Android and iOS even for an unpublished API
  • Use extended RTTI to better manage the software customization for your customer
  • Leverage the most popular design patterns for a better design without wasting too much time debugging

It is not an introductory book, you will not find any “Introduction to the Object Pascal language”, however the majority of the chapters are not too complex and can be grasped also by the new Delphi programmers.

The book is available for sale on the editor website and on Amazon.

Official book page at PacktPub

https://www.packtpub.com/application-development/delphi-cookbook

Book at Amazon

http://www.amazon.com/Delphi-XE6-Cookbook-Daniele-Teti/dp/1783559586

— Table of Contents —

Chapter 1: Delphi Basics

Changing your application’s look and feel with VCL styles and no code

Changing the style of your VCL application at runtime

Customizing TDBGrid

Using the owner’s draw combos and listboxes

Creating a stack of embedded forms

Manipulating JSON

Manipulating and transforming XML documents

I/O in the twenty-first century – knowing streams

Putting your VCL application in the tray

Creating a Windows service

Associating a file extension with your application on Windows

Chapter 2: Become a Delphi Language Ninja

Fun with anonymous methods – using higher-order functions

Writing enumerable types

RTTI to the rescue – configuring your class at runtime

Duck typing using RTTI

Creating helpers for your classes

Checking strings with regular expressions

Chapter 3: Going Cross Platform with FireMonkey

Giving a new appearance to the standard FireMonkey

controls using styles

Creating a styled TListBox

Impressing your clients with animations

Using master/details with LiveBindings

Showing complex vector shapes using paths

Using FireMonkey in a VCL application

Chapter 4: The Thousand Faces of Multithreading

Synchronizing shared resources with TMonitor

Talking with the main thread using a thread-safe queue

Synchronizing multiple threads using TEvent

Displaying a measure on a 2D graph like an oscilloscope

Chapter 5: Putting Delphi on the Server

Web client JavaScript application with WebBroker on the server

Converting a console service application to a Windows service

Serializing a dataset to JSON and back

Serializing objects to JSON and back using RTTI

Sending a POST HTTP request encoding parameters

Implementing a RESTful interface using WebBroker

Controlling remote applications using UDP

Using App Tethering to create a companion app

Creating DataSnap Apache modules

Chapter 6: Riding the Mobile Revolution with FireMonkey

Taking a photo, applying effects, and sharing it

Using listview to show and search local data

Do not block the main thread!

Using SQLite databases to handle a to-do list

Using a styled TListView to handle a long list of data

Taking a photo and location and sending it to a server continuously

Talking to the backend

Making a phone call from your app!

Tracking the application’s life cycle

Chapter 7: Using Specific Platform Features

Using Android SDK Java classes

Using iOS Objective-C SDK classes

Displaying PDF files in your app

Sending Android intents

Letting your phone talk – using the Android TextToSpeech engine

I hope you enjoy the reading!

–Daniele

ITDevCon 2014, Call4Papers

ITDevCon 2014
ITDevCon 2014

Dear potential ITDevCon speaker,

As every year, I’m building the agenda for next ITDevCon that will be held next october 23th, 24th in Milan (Italy), in a new location.

This will be the 6th edition ( we’re getting conference experts J )

The call for papers are officially open right now, so if you want to propose some speeches, I’ll be glad to see it.

As usual, for the Call4Paper I need:

  • Title (for every talk)
  • Abstract (for every talk)
  • Difficulty level (for every talk. Difficulty level is a scale from 1 to 3 with the following mean: introduction, intermediate, advanced)
  • Speaker’s photo
  • Speaker’s profile

I’m looking forward to your proposal. The call4papers ends at Aug 31st, 2014 but if you have *VERY* interesting topic to propose, propose it… I’ll try to arrange the schedule and fit it in the agenda.

Send your proposal to call4paper(at)itdevcon.it.

Proposals will be evaluated and the speakers will be contacted ASAP.

This year topics will be the following:

TOPICS

  • What’s new in the latest Delphi versions

  • FireMonkey platform

  • MacOSX development

  • Android development

  • iOS development

  • Windows development

  • Mobile development (Android+iOS)

  • Develop UIs for different devices (smartphones, tablets, TV, watch etc)

  • BaaS integrations

  • LiveBindings ®

  • Delphi best practices

  • Design Patterns

  • DataSnap

  • DelphiMVCFramework

  • Arduino e/o Raspberry Pi

  • Web Application with Delphi

  • TDD and Unit Tests

  • Agile methodologies

  • ORM and other data access patterns

  • Using NoSQL databases (even to speed up your VCL software)

  • FireDAC

  • UI, UX, optimization for mobile and desktop

  • OOD/OOP

  • Real use cases for extended RTTI, Generics e AnonMethods

  • RESTful interfaces design and development

  • Architectures

Target audience

  • Software architects
  • Software developers
  • Project managers
  • IT managers
  • Trainers

The conference web site is http://www.itdevcon.it (2014 version is still under construction).

Do you want to see a particular topic or have a suggestion for ITDevCon2014? Let me know

Thanks and see you at ITDevCon 2014.

DelphiMVCFramework is now Open Source!

delphimvcframework

Yes, just after 1 year of development, and a couple of big projects developed with it, the DelphiMVCFramework has been published as OpenSource.

The project is on google code svn https://code.google.com/p/delphimvcframework/

I’ll talk about it at ITDevCon2013 (http://www.itdevcon.it)

In the trunk there are many samples and I’m planning to put many others.

Main DMVCFramework features

  • RESTful (RMM Level 3) compliant
  • Server side generated pages using eLua (Embedded Lua)
  • Messaging extension using STOMP (tested with Apache Apollo and Apache ActiveMQ)
  • Can be used in load balanced environment using memcached (memcached.org)
  • Fancy URL with parameter mappings
  • Integrated RESTClient
  • Works with XE4 and XE5 (tested, but should works also on XE3 and XE2)
  • Experimental support for IOCP
  • Simple, but very very simple, to use…

It contains also a lot of indipendent code that can be used in other kind of projects.

These are the most notable:

  • Mapper (convert JSON <=> Object, ObjectList <=> JSONArray, ObjectLists <=> DataSets)
  • LuaBinding (integrate Lua script into Delphi native code)
  • LuaTextFilter (convert eLua into plain Lua executable script just like JSP)
Currently DMVCFramework use Embarcadero WebBroker framework, but is not tied to it. I’m working on a version that use IOCP (that is 10 times faster than plain WebBroker) and other web libraries for Delphi.
Code is enough stable and is already used in big production system.
WARNING!
There are a couple of bugs that affect WebBroker and so, DMVCFramework.
In our system, I’ve applied some patches to solve these problems. If you need those patches, ask me (I cannot publish the full code because it is Embarcadero licensed code).
The bugs are:
And another bug that affect also DataSnap and TIdHTTPWebBrokerBridge based projects.
Code is tested on XE4 and XE5 but should works also on XE3 and XE2.