Check Box

  • 项目

Check boxes are used to enable or disable one or more features or options from a set, usually within a dialog box. Typically, a check box contains a small box with adjoining text. When an option is selected, a check mark appears in the box.

The window class name for a check box is "BUTTON".

Supported Properties and Methods

  • accDoDefaultAction
    The DoDefaultAction method calls PostMessage with the BM_CLICK button message to click the check box.

  • accHitTest
    accLocation
    accNavigate
    accSelect
    get_accChild
    get_accChildCount
    The ChildCount is zero.

  • get_accDefaultAction
    The DefaultAction property of a check box depends on whether it is selected. A check box that is not selected has "Check" as its DefaultAction, and a check box that is selected has "UnCheck" as its DefaultAction. The DefaultAction for a three-state check box is "Toggle".

  • get_accDescription
    get_accFocus
    get_accKeyboardShortcut
    The KeyboardShortcut property is the check box's access key, which is an underlined character in the control's window text. This string contains the access key character appended to the string "Alt+".

  • get_accHelp
    get_accHelpTopic
    get_accName
    The Name property is obtained from the control's window text (or caption), which is displayed with the check box.

  • get_accParent
    The Parent property is a window (ROLE_SYSTEM_WINDOW) that surrounds the control and has the same Name property and window class name as the control.

  • get_accRole
    The Role property is ROLE_SYSTEM_CHECKBUTTON.

  • get_accState
    The State property is a combination of one or more of the following values:

    STATE_SYSTEM_INVISIBLE | STATE_SYSTEM_UNAVAILABLE | STATE_SYSTEM_FOCUSED | STATE_SYSTEM_FOCUSABLE | STATE_SYSTEM_MIXED | STATE_SYSTEM_CHECKED | STATE_SYSTEM_NORMAL

Events Generated

EVENT_OBJECT_STATECHANGE

EVENT_OBJECT_NAMECHANGE

See Also

IAccessible Interface