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RedHat 9 (Linux i386) - man page for qaccessibleinterface (redhat section 3qt)

QAccessibleInterface(3qt)						QAccessibleInterface(3qt)

NAME
       QAccessibleInterface - Defines an interface that exposes information about accessible
       objects

SYNOPSIS
       #include <qaccessible.h>

       Inherits QAccessible.

       Inherited by QAccessibleObject.

   Public Members
       virtual bool isValid () const = 0
       virtual int childCount () const = 0
       virtual QRESULT queryChild ( int control, QAccessibleInterface ** iface ) const = 0
       virtual QRESULT queryParent ( QAccessibleInterface ** iface ) const = 0
       virtual int controlAt ( int x, int y ) const = 0
       virtual QRect rect ( int control ) const = 0
       virtual int navigate ( NavDirection direction, int startControl ) const = 0
       virtual QString text ( Text t, int control ) const = 0
       virtual void setText ( Text t, int control, const QString & text ) = 0
       virtual Role role ( int control ) const = 0
       virtual State state ( int control ) const = 0
       virtual QMemArray<int> selection () const = 0
       virtual bool doDefaultAction ( int control ) = 0
       virtual bool setFocus ( int control ) = 0
       virtual bool setSelected ( int control, bool on, bool extend ) = 0
       virtual void clearSelection () = 0

DESCRIPTION
       The QAccessibleInterface class defines an interface that exposes information about
       accessible objects.

       See also Miscellaneous Classes.

MEMBER FUNCTION DOCUMENTATION
int QAccessibleInterface::childCount () const [pure virtual]
       Returns the number of children that belong to this object. A child can provide
       accessibility information on it's own (e.g. a child widget), or be a sub-element of this
       accessible object.

       All objects provide this information.

       See also queryChild().

void QAccessibleInterface::clearSelection () [pure virtual]
       Removes any selection from the object.

       See also setSelected().

int QAccessibleInterface::controlAt ( int x, int y ) const [pure virtual]
       Returns the ID of the child that contains the screen coordinates (x, y). This function
       returns 0 if the point is positioned on the object itself. If the tested point is outside
       the boundaries of the object this function returns -1.

       All visual objects provide this information.

bool QAccessibleInterface::doDefaultAction ( int control ) [pure virtual]
       Calling this function performs the default action of the child object specified by
       control, or the default action of the object itself if control is 0.

bool QAccessibleInterface::isValid () const [pure virtual]
       Returns TRUE if all the data necessary to use this interface implementation is valid (e.g.
       all pointers are non-null), otherwise returns FALSE.

int QAccessibleInterface::navigate ( NavDirection direction, int startControl ) const [pure
       virtual]
       This function traverses to another object, or to a sub-element of the current object.
       direction specifies in which direction to navigate, and startControl specifies the start
       point of the navigation, which is either 0 if the navigation starts at the object itself,
       or an ID of one of the object's sub-elements.

       The function returns the ID of the sub-element located in the direction specified. If
       there is nothing in the navigated direction, this function returns -1.

       All objects support navigation.

QRESULT QAccessibleInterface::queryChild ( int control, QAccessibleInterface ** iface ) const
       [pure virtual]
       Sets iface to point to the implementation of the QAccessibleInterface for the child
       specified with control. If the child doesn't provide accessibility information on it's
       own, the value of iface is set to 0. For those elements, this object is responsible for
       exposing the child's properties.

       All objects provide this information.

       See also childCount() and queryParent().

QRESULT QAccessibleInterface::queryParent ( QAccessibleInterface ** iface ) const [pure virtual]
       Sets iface to point to the implementation of the QAccessibleInterface for the parent
       object, or to 0 if there is no such implementation or object.

       All objects provide this information.

       See also queryChild().

QRect QAccessibleInterface::rect ( int control ) const [pure virtual]
       Returns the location of the child specified with control in screen coordinates. This
       function returns the location of the object itself if control is 0.

       All visual objects provide this information.

Role QAccessibleInterface::role ( int control ) const [pure virtual]
       Returns the role of the object if control is 0, or the role of the object's sub-element
       with ID control. The role of an object is usually static. All accessible objects have a
       role.

       See also text(), state(), and selection().

QMemArray<;int> QAccessibleInterface::selection () const [pure virtual]
       Returns the list of all the element IDs that are selected.

       See also text(), role(), and state().

bool QAccessibleInterface::setFocus ( int control ) [pure virtual]
       Gives the focus to the child object specified by control, or to the object itself if
       control is 0.

       Returns TRUE if the focus could be set; otherwise returns FALSE.

bool QAccessibleInterface::setSelected ( int control, bool on, bool extend ) [pure virtual]
       Sets the selection of the child object with ID control to on. If extend is TRUE, all child
       elements between the focused item and the specified child object have their selection set
       to on.

       Returns TRUE if the selection could be set; otherwise returns FALSE.

       See also setFocus() and clearSelection().

void QAccessibleInterface::setText ( Text t, int control, const QString & text ) [pure virtual]
       Sets the text property t of the child object control to text. If control is 0, the text
       property of the object itself is set.

State QAccessibleInterface::state ( int control ) const [pure virtual]
       Returns the current state of the object if control is 0, or the state of the object's sub-
       element element with ID control. All objects have a state.

       See also text(), role(), and selection().

QString QAccessibleInterface::text ( Text t, int control ) const [pure virtual]
       Returns a string property t of the child object specified by control, or the string
       property of the object itself if control is 0.

       The Name is a string used by clients to identify, find or announce an accessible object
       for the user. All objects must have a name that is unique within their container.

       An accessible object's Description provides textual information about an object's visual
       appearance. The description is primarily used to provide greater context for low-vision or
       blind users, but is also used for context searching or other applications. Not all objects
       have a description. An "OK" button would not need a description, but a toolbutton that
       shows a picture of a smiley would.

       The Value of an accessible object represents visual information contained by the object,
       e.g. the text in a line edit. Usually, the value can be modified by the user. Not all
       objects have a value, e.g. static text labels don't, and some objects have a state that
       already is the value, e.g. toggle buttons.

       The Help text provides information about the function and usage of an accessible object.
       Not all objects provide this information.

       An accessible object's DefaultAction describes the object's primary method of
       manipulation, and should be a verb or a short phrase, e.g. "Press" for a button.

       The accelerator is a keyboard shortcut that activates the default action of the object. A
       keyboard shortcut is the underlined character in the text of a menu, menu item or control,
       and is either the character itself, or a combination of this character and a modifier key
       like ALT, CTRL or SHIFT. Command controls like tool buttons also have shortcut keys and
       usually display them in their tooltip.

       See also role(), state(), and selection().

SEE ALSO
       http://doc.trolltech.com/qaccessibleinterface.html http://www.trolltech.com/faq/tech.html

COPYRIGHT
       Copyright 1992-2001 Trolltech AS, http://www.trolltech.com.  See the license file included
       in the distribution for a complete license statement.

AUTHOR
       Generated automatically from the source code.

BUGS
       If you find a bug in Qt, please report it as described in
       http://doc.trolltech.com/bughowto.html.	Good bug reports help us to help you. Thank you.

       The definitive Qt documentation is provided in HTML format; it is located at
       $QTDIR/doc/html and can be read using Qt Assistant or with a web browser. This man page is
       provided as a convenience for those users who prefer man pages, although this format is
       not officially supported by Trolltech.

       If you find errors in this manual page, please report them to qt-bugs@trolltech.com.
       Please include the name of the manual page (qaccessibleinterface.3qt) and the Qt version
       (3.1.1).

Trolltech AS				 9 December 2002		QAccessibleInterface(3qt)


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