1. Introduction to Windows Programming

2. Contrasting Windows and Console Applications
Each line in Main( ) executed sequentially – then the program halts
Windows applications
Once launched, sits and waits for an event
Sits in a process loop
Event: notification from operating system that an action, such as the user clicking the mouse or pressing a key, has occurred
Write event-handler methods for Windows apps

3. Graphical User Interface
Windows applications also look different from console applications
Interface: front end of a program
Visual image you see when you run a program
Graphical user interface (GUI)
Graphical user interface (GUI) includes:
Menus
Text in many different colors and sizes
Other controls (pictures, buttons, etc.)

4. using System.Windows.Forms;
namespace WindowsApp {
public class Form1 : Form
public Form1( )
Text = "Simple Windows Application"; }
static void Main( )
Form1 winForm = new Form1( );
Application.Run(winForm);
Base class
Constructor
Starts process loop

5. Output generated from Windows application
Graphical user interface (GUI)
Windows-based form

6. The Concept
For Windows programming, Visual Studio presents you with two development Windows:
1. Graphical Design Window – for the user interface
You select, drag and drop visual artifacts such textboxes, buttons,
etc. from the Toolbox pane onto the Designer Canvas.
Visual Studio automatically generates the code for these artifacts.
Program Code Window – for the program which reacts to a user interacting with the artifacts in the Design Window, e.g. a user clicking a button.