Indicates that a check box or other boolean indicator is in a state other than checked or not checked.
This usually means that the boolean value reflected or controlled by the object does not apply consistently to the entire current context. For
example, a checkbox for the "Bold" attribute of text may have
ATSPI_STATE_INDETERMINATE if the currently selected text contains a
mixture of weight attributes. In many cases interacting with a
ATSPI_STATE_INDETERMINATE object will cause the context's
corresponding boolean attribute to be homogenized, whereupon the object will lose
ATSPI_STATE_INDETERMINATE and a corresponding
state-changed event will be fired.