Accessibility Computing Numerical Pointer: Difference between revisions
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The idea is that by using just ten digit keys and one extra key to signify ENTER that pointer events and associated information can be generated and passed to the calling program. In addition, the Accessibility Computing Numerical Pointer is intended to provide some other facilities, such as generating Unicode characters and selecting colours. |
The idea is that by using just ten digit keys and one extra key to signify ENTER that pointer events and associated information can be generated and passed to the calling program. In addition, the Accessibility Computing Numerical Pointer is intended to provide some other facilities, such as generating Unicode characters and selecting colours. |
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==Specification== |
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===The Numerical Pointer Room=== |
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At entry the following values are set. |
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====x value alcove==== |
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====y value alcove==== |
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====z value alcove==== |
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===The Unicode Room=== |
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At entry the following values are set. |
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====higher values alcove==== |
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===The Colour Selection Room=== |
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At entry the following values are set. |
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====preset colours alcove==== |
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====red value alcove==== |
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====green value alcove==== |
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====blue value alcove==== |
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====a value alcove==== |
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==Implementation on the OLPC laptop== |
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[[Category:Accessibility]] |
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Revision as of 08:21, 6 February 2007
The Accessibility Computing Numerical Pointer is intended to be implemented as an auxiliary program which can be accessed from any program which wishes to use it.
The idea is that by using just ten digit keys and one extra key to signify ENTER that pointer events and associated information can be generated and passed to the calling program. In addition, the Accessibility Computing Numerical Pointer is intended to provide some other facilities, such as generating Unicode characters and selecting colours.
Specification
The Numerical Pointer Room
At entry the following values are set.
x value alcove
y value alcove
z value alcove
The Unicode Room
At entry the following values are set.
higher values alcove
The Colour Selection Room
At entry the following values are set.