TQAccessible Class Reference
The TQAccessible class provides enums and static functions
relating to accessibility.
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#include <qaccessible.h>
Inherited by TQAccessibleInterface.
List of all member functions.
Public Members
- enum Event { SoundPlayed = 0x0001, Alert = 0x0002, ForegroundChanged = 0x0003, MenuStart = 0x0004, MenuEnd = 0x0005, PopupMenuStart = 0x0006, PopupMenuEnd = 0x0007, ContextHelpStart = 0x000C, ContextHelpEnd = 0x000D, DragDropStart = 0x000E, DragDropEnd = 0x000F, DialogStart = 0x0010, DialogEnd = 0x0011, ScrollingStart = 0x0012, ScrollingEnd = 0x0013, MenuCommand = 0x0018, ObjectCreated = 0x8000, ObjectDestroyed = 0x8001, ObjectShow = 0x8002, ObjectHide = 0x8003, ObjectReorder = 0x8004, Focus = 0x8005, Selection = 0x8006, SelectionAdd = 0x8007, SelectionRemove = 0x8008, SelectionWithin = 0x8009, StateChanged = 0x800A, LocationChanged = 0x800B, NameChanged = 0x800C, DescriptionChanged = 0x800D, ValueChanged = 0x800E, ParentChanged = 0x800F, HelpChanged = 0x80A0, DefaultActionChanged = 0x80B0, AcceleratorChanged = 0x80C0 }
- enum State { Normal = 0x00000000, Unavailable = 0x00000001, Selected = 0x00000002, Focused = 0x00000004, Pressed = 0x00000008, Checked = 0x00000010, Mixed = 0x00000020, ReadOnly = 0x00000040, HotTracked = 0x00000080, Default = 0x00000100, Expanded = 0x00000200, Collapsed = 0x00000400, Busy = 0x00000800, Floating = 0x00001000, Marqueed = 0x00002000, Animated = 0x00004000, Invisible = 0x00008000, Offscreen = 0x00010000, Sizeable = 0x00020000, Moveable = 0x00040000, SelfVoicing = 0x00080000, Focusable = 0x00100000, Selectable = 0x00200000, Linked = 0x00400000, Traversed = 0x00800000, MultiSelectable = 0x01000000, ExtSelectable = 0x02000000, AlertLow = 0x04000000, AlertMedium = 0x08000000, AlertHigh = 0x10000000, Protected = 0x20000000, Valid = 0x3fffffff }
- enum Role { NoRole = 0x00000000, TitleBar = 0x00000001, MenuBar = 0x00000002, ScrollBar = 0x00000003, Grip = 0x00000004, Sound = 0x00000005, Cursor = 0x00000006, Caret = 0x00000007, AlertMessage = 0x00000008, Window = 0x00000009, Client = 0x0000000A, PopupMenu = 0x0000000B, MenuItem = 0x0000000C, ToolTip = 0x0000000D, Application = 0x0000000E, Document = 0x0000000F, Pane = 0x00000010, Chart = 0x00000011, Dialog = 0x00000012, Border = 0x00000013, Grouping = 0x00000014, Separator = 0x00000015, ToolBar = 0x00000016, StatusBar = 0x00000017, Table = 0x00000018, ColumnHeader = 0x00000019, RowHeader = 0x0000001A, Column = 0x0000001B, Row = 0x0000001C, Cell = 0x0000001D, Link = 0x0000001E, HelpBalloon = 0x0000001F, Character = 0x00000020, List = 0x00000021, ListItem = 0x00000022, Outline = 0x00000023, OutlineItem = 0x00000024, PageTab = 0x00000025, PropertyPage = 0x00000026, Indicator = 0x00000027, Graphic = 0x00000028, StaticText = 0x00000029, EditableText = 0x0000002A, PushButton = 0x0000002B, CheckBox = 0x0000002C, RadioButton = 0x0000002D, ComboBox = 0x0000002E, DropLest = 0x0000002F, ProgressBar = 0x00000030, Dial = 0x00000031, HotkeyField = 0x00000032, Slider = 0x00000033, SpinBox = 0x00000034, Diagram = 0x00000035, Animation = 0x00000036, Equation = 0x00000037, ButtonDropDown = 0x00000038, ButtonMenu = 0x00000039, ButtonDropGrid = 0x0000003A, Whitespace = 0x0000003B, PageTabList = 0x0000003C, Clock = 0x0000003D }
- enum NavDirection { NavUp = 0x00000001, NavDown = 0x00000002, NavLeft = 0x00000003, NavRight = 0x00000004, NavNext = 0x00000005, NavPrevious = 0x00000006, NavFirstChild = 0x00000007, NavLastChild = 0x00000008, NavFocusChild = 0x00000009 }
- enum Text { Name = 0, Description, Value, Help, Accelerator, DefaultAction }
Static Public Members
Detailed Description
The TQAccessible class provides enums and static functions
relating to accessibility.
Accessibility clients use implementations of the
TQAccessibleInterface to read the information an accessible object
exposes, or to call functions to manipulate the accessible object.
See the plugin documentation for
more details about how to redistribute TQt plugins.
See also Miscellaneous Classes.
Member Type Documentation
TQAccessible::Event
This enum type defines event types when the state of the
accessible object has changed. The event types are:
- TQAccessible::SoundPlayed
- TQAccessible::Alert
- TQAccessible::ForegroundChanged
- TQAccessible::MenuStart
- TQAccessible::MenuEnd
- TQAccessible::PopupMenuStart
- TQAccessible::PopupMenuEnd
- TQAccessible::ContextHelpStart
- TQAccessible::ContextHelpEnd
- TQAccessible::DragDropStart
- TQAccessible::DragDropEnd
- TQAccessible::DialogStart
- TQAccessible::DialogEnd
- TQAccessible::ScrollingStart
- TQAccessible::ScrollingEnd
- TQAccessible::ObjectCreated
- TQAccessible::ObjectDestroyed
- TQAccessible::ObjectShow
- TQAccessible::ObjectHide
- TQAccessible::ObjectReorder
- TQAccessible::Focus
- TQAccessible::Selection
- TQAccessible::SelectionAdd
- TQAccessible::SelectionRemove
- TQAccessible::SelectionWithin
- TQAccessible::StateChanged
- TQAccessible::LocationChanged
- TQAccessible::NameChanged
- TQAccessible::DescriptionChanged
- TQAccessible::ValueChanged
- TQAccessible::ParentChanged
- TQAccessible::HelpChanged
- TQAccessible::DefaultActionChanged
- TQAccessible::AcceleratorChanged
- TQAccessible::MenuCommand
TQAccessible::NavDirection
This enum specifies which item to move to when navigating.
- TQAccessible::NavUp - sibling above
- TQAccessible::NavDown - sibling below
- TQAccessible::NavLeft - left sibling
- TQAccessible::NavRight - right sibling
- TQAccessible::NavNext - next sibling
- TQAccessible::NavPrevious - previous sibling
- TQAccessible::NavFirstChild - first child
- TQAccessible::NavLastChild - last child
- TQAccessible::NavFocusChild - child with focus
TQAccessible::Role
This enum defines a number of roles an accessible object can have.
The roles are:
- TQAccessible::NoRole
- TQAccessible::TitleBar
- TQAccessible::MenuBar
- TQAccessible::ScrollBar
- TQAccessible::Grip
- TQAccessible::Sound
- TQAccessible::Cursor
- TQAccessible::Caret
- TQAccessible::AlertMessage
- TQAccessible::Window
- TQAccessible::Client
- TQAccessible::PopupMenu
- TQAccessible::MenuItem
- TQAccessible::ToolTip
- TQAccessible::Application
- TQAccessible::Document
- TQAccessible::Pane
- TQAccessible::Chart
- TQAccessible::Dialog
- TQAccessible::Border
- TQAccessible::Grouping
- TQAccessible::Separator
- TQAccessible::ToolBar
- TQAccessible::StatusBar
- TQAccessible::Table
- TQAccessible::ColumnHeader
- TQAccessible::RowHeader
- TQAccessible::Column
- TQAccessible::Row
- TQAccessible::Cell
- TQAccessible::Link
- TQAccessible::HelpBalloon
- TQAccessible::Character
- TQAccessible::List
- TQAccessible::ListItem
- TQAccessible::Outline
- TQAccessible::OutlineItem
- TQAccessible::PageTab
- TQAccessible::PropertyPage
- TQAccessible::Indicator
- TQAccessible::Graphic
- TQAccessible::StaticText
- TQAccessible::EditableText
- TQAccessible::PushButton
- TQAccessible::CheckBox
- TQAccessible::RadioButton
- TQAccessible::ComboBox
- TQAccessible::DropLest
- TQAccessible::ProgressBar
- TQAccessible::Dial
- TQAccessible::HotkeyField
- TQAccessible::Slider
- TQAccessible::SpinBox
- TQAccessible::Diagram
- TQAccessible::Animation
- TQAccessible::Equation
- TQAccessible::ButtonDropDown
- TQAccessible::ButtonMenu
- TQAccessible::ButtonDropGrid
- TQAccessible::Whitespace
- TQAccessible::PageTabList
- TQAccessible::Clock
TQAccessible::State
This enum type defines bitflags that can be combined to indicate
the state of the accessible object. The values are:
- TQAccessible::Normal
- TQAccessible::Unavailable
- TQAccessible::Selected
- TQAccessible::Focused
- TQAccessible::Pressed
- TQAccessible::Checked
- TQAccessible::Mixed
- TQAccessible::ReadOnly
- TQAccessible::HotTracked
- TQAccessible::Default
- TQAccessible::Expanded
- TQAccessible::Collapsed
- TQAccessible::Busy
- TQAccessible::Floating
- TQAccessible::Marqueed
- TQAccessible::Animated
- TQAccessible::Invisible
- TQAccessible::Offscreen
- TQAccessible::Sizeable
- TQAccessible::Moveable
- TQAccessible::SelfVoicing
- TQAccessible::Focusable
- TQAccessible::Selectable
- TQAccessible::Linked
- TQAccessible::Traversed
- TQAccessible::MultiSelectable
- TQAccessible::ExtSelectable
- TQAccessible::AlertLow
- TQAccessible::AlertMedium
- TQAccessible::AlertHigh
- TQAccessible::Protected
- TQAccessible::Valid
TQAccessible::Text
This enum specifies string information that an accessible object
returns.
- TQAccessible::Name - The name of the object
- TQAccessible::Description - A short text describing the object
- TQAccessible::Value - The value of the object
- TQAccessible::Help - A longer text giving information about how
to use the object
- TQAccessible::DefaultAction - The default method to interact with the object
- TQAccessible::Accelerator - The keyboard shortcut that executes the
default action
Member Function Documentation
bool TQAccessible::isActive () [static]
Returns TRUE if an accessibility implementation has been requested,
during the runtime of the application, otherwise returns FALSE.
Use this function to prevent potentially expensive notifications via
updateAccessibility().
TQRESULT TQAccessible::queryAccessibleInterface ( TQObject * object, TQAccessibleInterface ** iface ) [static]
Sets iface to point to the implementation of the
TQAccessibleInterface for object, and returns TQS_OK if
successfull, or sets iface to 0 and returns TQE_NOCOMPONENT if
no accessibility implementation for object exists.
The function uses the classname of object to find a suitable implementation. If no
implementation for the object's class is available the function
tries to find an implementation for the object's parent class.
This function is called to answer an accessibility client's
request for object information. You should never need to call this
function yourself.
void TQAccessible::updateAccessibility ( TQObject * object, int control, Event reason ) [static]
Notifies accessibility clients about a change in object's
accessibility information.
reason specifies the cause of the change, for example,
ValueChange when the position of a slider has been changed. control is the ID of the child element that has changed. When control is 0, the object itself has changed.
Call this function whenever the state of your accessible object or
one of it's sub-elements has been changed either programmatically
(e.g. by calling TQLabel::setText()) or by user interaction.
If there are no accessibility tools listening to this event, the
performance penalty for calling this function is minor, but if determining
the parameters of the call is expensive you can use isActive() to
avoid unnecessary performance penalties if no client is listening.
This file is part of the TQt toolkit.
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