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Introduction to WPF

Before the advent of WPF windows applications were made in .net winforms. But the programmer had to do a lot of work to create a rich UI application.

To overcome this problem Microsoft introduced a UI framework called WPF (Windows Presentation Foundation) which help developers to create a rich text application without giving much effort.

As this tutorial is just an introduction to WPF so in this tutorial I will explain basic concepts which are useful to understand basic about WPF.

Raster Graphics

Vector graphics is the use of rectangle grid of pixels to represent an image, and each pixel is assigned a color

To elaborate this concept consider an image of a plus sign (+). Image in raster graphics will look like as shown in the figure below.

Click to Enlarge

Vector Graphics

Vector graphics is the use of geometrical primitives such as points, lines, curves, and shapes or polygon(s), which are all based on mathematical equations to represent an image.

Dots per inch (DPI) vs. pixels per inch (PPI)

1. Dot is the ink density while printing paper whereas pixel is the image density on screen.

2. Dots per inch specifies number of dots per inch and pixels per inch specifies number of pixels per inch.

3. More DPI and PPI means better quality.

Posted By -	Karan Gupta

Posted On -	Thursday, July 15, 2010

Updated On -	Saturday, March 7, 2020

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