Checkbox
You can use checkboxes to select or deselect an option. A checkbox consists of a square checkmark element and a descriptive text.
If the checkbox has the focus, you can select or deselect it using the spacebar.
In addition to being selected or deselected, a checkbox can also have an undefined status. This is used if multiple items are displayed in a summary dialog and the checkbox cannot display the values of all elements.
If all elements have the value true, then the checkbox is selected. If all elements have the value false, then the checkbox is not selected. If the result is unclear (for example, 10 true values and seven false values), the system displays the checkbox in an undefined state. If you now choose the checkbox, the checked status will be applied to all selected elements.
Access
Checkboxes support sequential element navigation. This means that you can move the focus forwards to a checkbox using Tab or backwards using Shift + Tab.
Help Functions
If the checkbox has a tool tip, you can call it up by choosing Ctrl + q.