Web Content Accessibility Guidelines (WCAG) 2. Note 1. This includes initialisms and acronyms where: initialisms are shortened forms of a name or phrase made from the initial letters of words or syllables contained in that name or phrase.
Note 1. Not defined in all languages. Example 1. SNCF is a French initialism that contains the initial letters of the Soci. Example 2. ESP is an initialism for extrasensory perception. Example: NOAA is an acronym made from the initial letters of the National Oceanic and Atmospheric Administration in the United States.
Note 2. Some companies have adopted what used to be an initialism as their company name. In these cases, the new name of the company is the letters (for example, Ecma) and the word is no longer considered an abbreviation. To qualify as an accessibility- supported use of a Web content technology (or feature of a technology), both 1 and 2 must be satisfied for a Web content technology (or feature). The way that the Web content technology is used must be supported by users' assistive technology (AT).
This means that the way that the technology is used has been tested for interoperability with users' assistive technology in the human language(s) of the content,ANDThe Web content technology must have accessibility- supported user agents that are available to users. This means that at least one of the following four statements is true: The technology is supported natively in widely- distributed user agents that are also accessibility supported (such as HTML and CSS); ORThe technology is supported in a widely- distributed plug- in that is also accessibility supported; ORThe content is available in a closed environment, such as a university or corporate network, where the user agent required by the technology and used by the organization is also accessibility supported; ORThe user agent(s) that support the technology are accessibility supported and are available for download or purchase in a way that: does not cost a person with a disability any more than a person without a disability andis as easy to find and obtain for a person with a disability as it is for a person without disabilities. Note 1. The WCAG Working group and the W3. C do not specify which or how much support by assistive technologies there must be for a particular use of a Web technology in order for it to be classified as accessibility supported. Most technologies, including HTML, lack support for at least one feature or use.
Pages conform to WCAG only if the uses of the technology that are accessibility supported can be relied upon to meet WCAG requirements. Note 4. When citing Web content technologies that have multiple versions, the version(s) supported should be specified. Note 5. One way for authors to locate uses of a technology that are accessibility supported would be to consult compilations of uses that are documented to be accessibility supported. However, all ways of using technologies in the documentation would need to meet the definition of accessibility- supported Web content technologies above. The link could lead to a definition of guava, a chart listing the quantity of guava exported or a photograph of people harvesting guava. Until the link is activated, all readers are unsure and the person with a disability is not at any disadvantage. ASCII artpicture created by a spatial arrangement of characters or glyphs (typically from the 9.
ASCII). Many mainstream user agents provide some features to assist individuals with disabilities. The basic difference is that mainstream user agents target broad and diverse audiences that usually include people with and without disabilities. Assistive technologies target narrowly defined populations of users with specific disabilities. The assistance provided by an assistive technology is more specific and appropriate to the needs of its target users. The mainstream user agent may provide important functionality to assistive technologies like retrieving Web content from program objects or parsing markup into identifiable bundles. It is possible for something to be large enough and blink brightly enough at the right frequency to be also classified as a flash.
TIGCC Programming Lessons. The following is part of a series of lessons designed to help teach people to program in C for the TI-89, 92+, and V200 calculators using the TIGCC development environment. C Input and Output - Learn ANSI, GNU and K/R standard of C programming language with simple and easy examples covering basic C, language basics, literals, data types, functions, loops, arrays, pointers, structures, input and.
It is named after famed computer scientist Alan Turing. The term was coined by researchers at Carnegie Mellon University. For example, if the captions are visual equivalent images of text embedded in video. Note 4. Captions should not obscure or obstruct relevant information in the video. Note 5. In some countries, captions are called subtitles. Note 6. Audio descriptions can be, but do not need to be, captioned since they are descriptions of information that is already presented visually. Web page that, if made without user awareness, can disorient users who are not able to view the entire page simultaneously.
Where can I find the manuals or a good guide for a das keyboard? I got lucky and found it in the trash so I don't have a manual and I can't seem to find one online. It would be nice to know as.
Keyboard input is an important part of the overall user interaction experience for apps. The keyboard is indispensable to people with certain disabilities or users who just consider it a more efficient way to. KEYBOARD INPUT There is a function in C which allows the programmer to accept input from a keyboard. The following program illustrates the use of this function, #include <stdio.h> main() /* program which.
Changes in context include changes of: user agent; viewport; focus; content that changes the meaning of the Web page. Note: A change of content is not always a change of context. Changes in content, such as an expanding outline, dynamic menu, or a tab control do not necessarily change the context, unless they also change one of the above (e. Example: Opening a new window, moving focus to a different component, going to a new page (including anything that would look to a user as if they had moved to a new page) or significantly re- arranging the content of a page are examples of changes of context. Note 1. In this definition, . Each version should be as conformant as possible.
One version would need to be fully conformant in order to meet conformance requirement 1. Note 5. The conforming alternative version does not need to reside within the scope of conformance, or even on the same Web site, as long as it is as freely available as the non- conforming version. Note 6. Alternate versions should not be confused with supplementary content, which support the original page and enhance comprehension.
When you enable keyboard layouts in different languages, you can switch to a different language by using the Language bar in Office programs. The keyboard layout changes to the native keyboard for that language. A computer is a programmable machine. The two principal characteristics of a computer are: It responds to a specific set of instructions in a well-defined manner and it can execute a prerecorded list of instructions (a program. Input and output 9.10.1.
Note 7. Setting user preferences within the content to produce a conforming version is an acceptable mechanism for reaching another version as long as the method used to set the preferences is accessibility supported. See Understanding Conforming Alternate Versionscontent (Web content). Note: Clear labels can act as context- sensitive help. L1 + 0. 0. 5) / (L2 + 0. Note 1. Contrast ratios can range from 1 to 2. Note 2. Because authors do not have control over user settings as to how text is rendered (for example font smoothing or anti- aliasing), the contrast ratio for text can be evaluated with anti- aliasing turned off. Note 3. For the purpose of Success Criteria 1.
If no background color is specified, then white is assumed. Note 4. Background color is the specified color of content over which the text is to be rendered in normal usage.
It is a failure if no background color is specified when the text color is specified, because the user's default background color is unknown and cannot be evaluated for sufficient contrast. For the same reason, it is a failure if no text color is specified when a background color is specified. Note 5. When there is a border around the letter, the border can add contrast and would be used in calculating the contrast between the letter and its background. A narrow border around the letter would be used as the letter. A wide border around the letter that fills in the inner details of the letters acts as a halo and would be considered background. Note 6. WCAG conformance should be evaluated for color pairs specified in the content that an author would expect to appear adjacent in typical presentation. Authors need not consider unusual presentations, such as color changes made by the user agent, except where caused by authors' code.
Note: This technique is only used when the sense of the video would be lost without the additional audio description and the pauses between dialogue/narration are too short. A general flash is defined as a pair of opposing changes in relative luminance of 1. A flash consists of two opposing transitions. Note 3. The current working definition in the field for . However, no tool is necessary to evaluate for this condition if flashing is less than or equal to 3 flashes in any one second. Content automatically passes (see #1 and #2 above). Note: See also sign language.
Note: idioms cannot be translated directly, word for word, without losing their (cultural or language- dependent) meaning. Applications on the PDA can use the interface to obtain keyboard input either from an external keyboard or from other applications that provide simulated keyboard output, such as handwriting interpreters or speech- to- text applications with . In many (but not all) cases the name and the label are the same. It does not include resizing that may be done by a user.
Note 3. The actual size of the character that a user sees is dependent both on the author- defined size and the user's display or user- agent settings. For many mainstream body text fonts, 1. When fonts are defined in relative units, the actual point size is calculated by the user agent for display.
A keyboard layout is any specific mechanical, visual, or functional arrangement of the keys, legends, or key-meaning associations (respectively) of a computer, typewriter, or other typographic keyboard. Mechanical layout The.
The point size should be obtained from the user agent, or calculated based on font metrics as the user agent does, when evaluating this success criterion. Users who have low vision would be responsible for choosing appropriate settings. If a level 1 heading is rendered in 1. Relative scaling can be calculated from the default sizes in a similar fashion.
Note 5. The 1. 8 and 1. Unless it is known that another color space will be used to process and display the content, authors should evaluate using s. RGB colorspace. If using other color spaces, see Understanding Success Criterion 1. Note 3. If dithering occurs after delivery, then the source color value is used. Note 4. Tools are available that automatically do the calculations when testing contrast and flash. Note 5. A Math. ML version of the relative luminance definition is available. In this case, they would have the same functionality but would not be labeled consistently.