Working with Taskbar Buttons in Windows

One of the most noticeable new features of the Windows 7 user interface is the new role of taskbar buttons, the graphic generally positioned at the bottom of the screen and showing the various applications that are currently running. In Windows 7 you can mix running applications with regularly used ones You pin a program to the taskbar and its icon will remain there even when the application is not running. These new taskbar buttons provide several ways to interact with an application. When the...

Using the Windows Imaging Component

Another new graphic-related feature of the VCL is its support for the Windows Imaging Component WIC . This is a Microsoft framework for working with images and their metadata, which supports several image formats and can be extended with new image formats by software and hardware vendors like digital camera makers . Not only can the WIC can display images, but it has also a lot of image processing capabilities built into it and independent from the actual image format. The WIC is available in...

Basic Gesture Example

Rather than describing the complete VCL gesturing architecture in theory, let us start by building a very simple first example I've called Gesturesoi. The program has a form with a panel and a memo control, plus the GestureManager component. This last component doesn't have specific setting, as its editor let's you add custom gestures to it, something we will focus on later. The management of gestures takes place in the Touch property of the target control, for example the form. This property...