Global CSS settings, fundamental HTML elements styled and enhanced with extensible classes, and an advanced grid system. Volumouse provides you a quick and easy way to control the sound volume on your system - simply by rolling the wheel of your wheel mouse. It allows you to define a. Pop-up ads originated on the Tripod.com webpage hosting site in the late 1990s. Ethan Zuckerman claims he wrote the code to launch advertisements in separate. Pointer Events. This section is non- normative. Today, most . Newer computing devices today, however, incorporate other forms of input, including touchscreens, pen input, etc. Event types have been proposed for handling each of these forms of input individually. However, that approach often incurs unnecessary duplication of logic and event handling overhead when adding support for a new input type. This often creates a compatibility problem when content is written with only one device type in mind. Additionally, for compatibility with existing mouse- based content, most user agents fire Mouse Events for all input types. This makes it ambiguous whether a Mouse Event represents an actual mouse device or is being produced from another input type for compatibility, which makes it hard to code to both device types simultaneously. To reduce the cost of coding to multiple input types and also to help with the above described ambiguity with Mouse Events, this specifications defines a more abstract form of input, called a pointer. A pointer can be any point of contact on the screen made by a mouse cursor, pen, touch (including multi- touch), or other pointing input device. This model makes it easier to write sites and applications that work well no matter what hardware the user has. For scenarios when device- specific handling is desired, this specification also defines properties for inspecting the device type which produced the event. The primary goal is to provide a single set of events and interfaces that allow for easier authoring for cross- device pointer input while still allowing for device- specific handling only when necessary for an augmented experience. An additional key goal is to enable multi- threaded user agents to handle default touch actions, such as scrolling, without blocking on script execution. Note. While this specification defines a unified event model for a variety pointer inputs, this model does not cover other forms of input such as keyboards or keyboard- like interfaces (for instance, a screenreader or similar assistive technology running on a touchscreen- only device, which allows users sequential navigation through focusable controls and elements). A list of some features of the Click-N-Type free virtual keyboard for people with disabilities. While user agents might choose to also generate pointer events in response to these interfaces, this scenario is not covered in this specification. In the first instance, authors are encouraged to provide equivalent functionality for all forms of input by responding to high- level events such as focus, blur and click. However, when using low- level events (such as Pointer Events), authors are encouraged to ensure that all types of input are supported. In the case of keyboards and keyboard- like interfaces, this might require the addition of explicit keyboard event handling. See WCAG 2. 0 Guideline 2. Fig. 1. A pointer is a hardware agnostic representation of input devices that can target a specific coordinate (or set of coordinates) on a screen. The events for handling generic pointer input look a lot like those for mouse: pointerdown, pointermove, pointerup, pointerover, pointerout, etc. This facilitates easy content migration from Mouse Events to Pointer Events. So authors can easily code to Pointer Events to share logic between different input types where it makes sense, and customize for a particular type of input only where necessary to get the best experience. While Pointer Events are sourced from a variety of input devices, they are not defined as being generated from some other set of device- specific events. While possible and encouraged for compatibility, this spec does not require other device- specific events be supported (e. For compatibility with content written to mouse- specific events, this specification does provide an optional section describing how to generate compatibility mouse events based on pointer input from devices other than a mouse. Note. This specification does not provide any advice on the expected behavior of user agents that support both Pointer Events and Touch Events. For more information on the relationship between these two specifications, see the Touch Events Community Group. The Windows Input Simulator provides a simple.NET (C#) interface to simulate Keyboard or Mouse input using the Win32 SendInput method. All of the Interop is. Consider, for example, that the voice-activated digital assistant Cortana.
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