How to install Wt (Witty) on Windows

Installing Wt can be a challenging task if you don’t have the right tools. I spent many days trying to make it work with MinGW and Visual Studio 2005. No luck. Here are some of my results: MinGW I was never able to make a full compile. It was interrupted by this or that reason. I could never get any of the examples to work. Visual C++ Express 2005 Some of the examples worked, however only in “Release” mode.

How to install the C++ Boost Libraries on Windows

Boost is a set of high-quality libraries that speed up C++ development. They are included in most linux distributions and some of them are already part of the C++ Standard Library. In the Windows environment, you have to install them in order to take advantage of them. If you are using Microsoft Visual Studio, you can avoid the following steps by downloading a binary version from http://www.boostpro.com/download/and skip to the Testing section in this document.

Installing gcc/g++ using MinGW and NetBeans in Windows

C and C++ languages are everywhere. All operating systems use them. People usually choose them because of their limitless power, velocity of execution, great portability and much more. In this tutorial I will show you how to install a C/C++ development environment under Windows. By the way, MinGW includes other compilers for languages like c, c++, objective c fortran and ada.  Install MinGW Go to the MinGW websiteand look for the download link.

Switch from Debug to Release build options in Delphi

Unlike Microsoft’s Visual Studio, the option to switch from Debug to Release in Delphi is kind of hidden. However, it is very easy to use. Go to the Project menu and select Configuration Manager Now select your project, Choose a new configuration and Press the “play” button.  The following picture shows you how the Configuration Manager looks: By default, the difference between the Debug and the Release options include:

How to create high definition images for the iPad Retina display

So you got a new iPad and realized your images do not look as good as they do on your computer, right? Don’t worry, there is a very simple way to achieve good looking images on this device: If you want to create a 500 x 500 px on a Retina display, create an image at 1000 x 1000 and then use CSS to control the image size down to 500 x 500:

Working with dynamic arrays in Delphi

One advantage of Delphi’s dynamic arrays is that they are automatically freed once they go out of scope. That simplifies memory management and gives you more flexibility on your applications. You can declare a dynamic array like this: Customers: array of string;  Before adding an element, you have to call the SetLength function to specify the number of elements you are going to use (3 in this case): SetLength(Customers, 3);  Now you can go ahead adding values:

Tips to help you deal with Delphi Threads

Multithreading is one of those operating systems feaures that make your programs work in a more efficient way and give your users a better interactive interface. However they are not used by all developers. In this article I will focus on some important points you must have in mind when using threads on Delphi.  How to create them There are two simple steps to accomplish it: Create a new class that inherits from TThread and Override the Execute method.

Creating Shortcodes in WordPress

Shortcodes enable developers to create special kinds of content, following the idea of macros. One very famous short code is “gallery” needed to insert a gallery of images into a post. The good thing about shortcode’s is that final users are free to decide where to insert them. WordPress’s Shortcode API handles all the tricky parsing, making developers life much easier. The following is a snippet for a Shortcode – in order to make it work you have to add it to your functions.

Download YouTube videos using Java

From time to time we all have needed to show a YouTube video where no Internet connection is available. This program will allow you to download a video from YouTube for later playback. It is important to say that YouTube constantly changes its video URL, so someday it may need some rework. The following code was tested on Aug 12, 2012 and it works. Have a good day.  /** * YouTubeDownloader * * Modified by Andres Jaimes https://andres.

Free Image Resizer for Windows

This time I want to share with you a Windows application for image resizing. It’s a fact, size matters. That is why Image Resizer can be very useful for sharing pictures through email, uploading images to websites or posting them to social networks. If your images are smaller, then it will take you less time to share them. This application can load a list of jpeg, gif, png or bmp files, resize them and then put them on a selected folder.