Implement accessibility features. in VS .NET

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Implement accessibility features.
Encoding Quick Response Code In .NET
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Create Barcode In .NET Framework
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Implement accessibility features within a Windows Forms application. Configure the PropertyGrid component. Configure the ProgressBar control to indicate progress graphically. Display status information by using the StatusStrip control. Configure the ToolTip component. Configure the ErrorProvider component. Configure the HelpProvider component. Play system sounds and audio files by using the SoundPlayer. Configure the Timer component to raise an event at regular intervals. Enable scrolling by using the HScrollBar and VScrollBar controls.
Draw QR-Code In C#.NET
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Create, configure, and customize user assistance controls and components.
Paint Quick Response Code In VB.NET
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Encode Code39 In VS .NET
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Persist Windows Forms application settings between sessions.
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Lessons in this chapter:
Draw Bar Code In Visual Studio .NET
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Make UPC-A Supplement 2 In Visual Studio .NET
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Lesson 1: Implementing Accessibility. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 557 Lesson 2: Using User Assistance Controls and Components . . . . . . . . . . . . . 564
Encoding Barcode In .NET Framework
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Print International Standard Serial Number In Visual Studio .NET
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12
USS Code 128 Drawer In None
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Generating GTIN - 12 In Java
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Enhancing Usability
UCC - 12 Drawer In None
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Printing Data Matrix ECC200 In Java
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Before You Begin
Encode Code 128 Code Set C In Objective-C
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Draw EAN-13 Supplement 5 In Java
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To complete the lessons in this chapter, you must have:
Draw PDF-417 2d Barcode In Java
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Print Quick Response Code In None
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A computer that meets or exceeds the minimum hardware requirements listed in the Introduction at the beginning of the book. Microsoft Visual Studio 2005 Professional Edition installed on your computer. An understanding of Microsoft Visual Basic or C# syntax and familiarity with the Microsoft .NET Framework.
Real World
Matt Stoecker Usable applications are used applications. In my opinion, the key to a successful application is user adoption. If using your application is difficult or a chore for your target audience, productivity will suffer. But if your target audience is excited about using your application, and your program takes the needs of your target audience into account, then adoption will increase, training time will decrease, and greater productivity will be had by all.
Lesson 1: Implementing Accessibility
Lesson 1: Implementing Accessibility
Today s workforce is a diverse group of people with different talents, skills, and abili ties. Many users of today s applications have difficulty using the standard user inter face provided by most Windows Forms applications. You can increase the user base of your applications through accessible design: designing them to be accessible.
After this lesson, you will be able to:
Implement accessibility features in a Windows Forms application.
Estimated lesson time: 45 minutes
Implementing Accessibility
The workforce contains a significant number of people with accessibility requirements, requiring applications that meet the broad demands of today s business environment. Microsoft Windows XP provides a variety of tools that can seamlessly provide acces sibility to Windows Forms applications and create a more accessible user experience. An example of an accessibility aid is Sound Sentry, which causes the operating system to emit a visible cue whenever a sound is played. In addition, you can design accessi bility principles into your application.
Designing for Accessibility
Accessible applications begin in the design phase. When accessibility is planned for in application design, you can integrate the principles of accessibility into the user inter face. Some of these principles are:
Flexibility Choice of input and output methods Consistency Compatibility with accessibility aids
An accessible program requires flexibility. Users must be able to customize the user interface to suit their specific needs, for example, the ability to increase font sizes if needed. A user should also have a choice of input methods such as keyboard and mouse devices. That is, the application should provide keyboard access for all impor tant features and mouse access for all main features. A choice of output methods also renders an application more accessible, and the user should have the ability to choose
12
Enhancing Usability
among visual cues, sounds, text, and graphics. An accessible application should inter act within its own operation and with other applications in a consistent manner, and it should be compatible with existing accessibility aids.
Support Standard System Settings
For your application to be accessible, it must support standard system settings for size, color, font, and input. Adopting this measure will ensure that all of a user s applica tions have a consistent user interface that conforms to the system settings. Users with accessibility needs can thus configure all of their applications by configuring their sys tem settings. You can implement standard system settings in your application by using the classes that represent the user interface options used by the system. Table 12-1 lists the classes that expose the system settings. These classes are found in the System.Drawing namespace.
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