int Explode P((Board board, int fromX, int fromY, int toX, int toY));
typedef enum { CheckBox, ComboBox, TextBox, Button, Spin, ResetButton, SaveButton, ListBox, Graph, PopUp,
- FileName, PathName, Slider, Message, Fractional, Label, BoxBegin, BoxEnd, DropDown, Break, EndMark } Control;
+ FileName, PathName, Slider, Message, Fractional, Label, Icon,
+ BoxBegin, BoxEnd, BarBegin, BarEnd, DropDown, Break, EndMark } Control;
typedef struct XB_OPT { // [HGM] options: descriptor of UCI-style option
int value; // current setting, starts as default