import "AccessibleValue.idl";
Public Member Functions | |
HRESULT | currentValue ([out, retval] VARIANT *currentValue) |
Returns the value of this object as a number. | |
HRESULT | setCurrentValue ([in] VARIANT value) |
Sets the value of this object to the given number. | |
HRESULT | maximumValue ([out, retval] VARIANT *maximumValue) |
Returns the maximal value that can be represented by this object. | |
HRESULT | minimumValue ([out, retval] VARIANT *minimumValue) |
Returns the minimal value that can be represented by this object. |
The IAccessibleValue interface represents a single numerical value and should be implemented by any class that supports numerical value like progress bars and spin boxes. This interface lets you access the value and its upper and lower bounds.
HRESULT IAccessibleValue::currentValue | ( | [out, retval] VARIANT * | currentValue | ) | [get] |
Returns the value of this object as a number.
The exact return type is implementation dependent. Typical types are long and double.
[out] | currentValue | Returns the current value represented by this object. See the section about VARIANTs for additional information. |
S_OK | ||
S_FALSE | if there is nothing to return, [out] value is NULL |
HRESULT IAccessibleValue::maximumValue | ( | [out, retval] VARIANT * | maximumValue | ) | [get] |
Returns the maximal value that can be represented by this object.
The type of the returned value is implementation dependent. It does not have to be the same type as that returned by method IAccessibleValue::currentValue.
[out] | maximumValue | Returns the maximal value in an implementation dependent type. If this object has no upper bound then an empty object is returned. See the section about VARIANTs for additional information. |
S_OK |
HRESULT IAccessibleValue::minimumValue | ( | [out, retval] VARIANT * | minimumValue | ) | [get] |
Returns the minimal value that can be represented by this object.
The type of the returned value is implementation dependent. It does not have to be the same type as that returned by method IAccessibleValue::currentValue.
[out] | minimumValue | Returns the minimal value in an implementation dependent type. If this object has no lower bound then an empty object is returned. See the section about VARIANTs for additional information. |
S_OK |
HRESULT IAccessibleValue::setCurrentValue | ( | [in] VARIANT | value | ) |
Sets the value of this object to the given number.
The argument is clipped to the valid interval whose upper and lower bounds are returned by the methods IAccessibleValue::maximumValue and IAccessibleValue::minimumValue, i.e. if it is lower than the minimum value the new value will be the minimum and if it is greater than the maximum then the new value will be the maximum.
[out] | value | The new value represented by this object. The set of admissible types for this argument is implementation dependent. |
S_OK |
http://bugs.linuxfoundation.org/
.
When using Bugzilla please be sure to select
IAccessible2 from the list of components.
Bugzilla is the preferred method for receiving feedback because it
automatically logs one's feedback in the IAccessible2 tracking system
without additional human intervention. One may also, however, send email to accessibility-rfc@a11y.org, a publicly archived emailing list. Please address any technical
problems you encounter with this document or the resources to which it
links, to the Open A11y Webmaster <webmaster@a11y.org>
A stable online reference version of the documentation for IAccessible2 API Version 1.0.2,
is available at: http://a11y.org/ia2-spec. A list
of known and reported
errors in the documentation for IAccessible2 API Version 1.0.2 can be found at:
http://a11y.org/ia2-errata