BFM_ACTION_ID int ID of the dialog element that triggered the action.
BFM_ACTION_VALUE any Action value.
BFM_ACTION_INDRAG bool Slider in dragging mode (not finished).
BFM_ACTION_STRCHG bool String in text field changed.
BFM_ACTION_VALCHG bool Edit/slider changed.
BFM_ACTION_ESC bool Action escaped. Internal.
BFM_ACTION_RESET bool Reset to default value on right-click of input field arrows.
BFM_ACTION_UPDATE bool Update without verify. Internal.