X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=backend.h;h=d74378e989fea07c555addfe50f44446ae70bd0d;hb=259aca883470b6cd7fc47e417475f05120400d3c;hp=f0d5816684ca3d9cfd103b0f2d943229a4dbbf2f;hpb=53bd2925219894cab67bb12733077e58ff386dc3;p=xboard.git

diff --git a/backend.h b/backend.h
index f0d5816..d74378e 100644
--- a/backend.h
+++ b/backend.h
@@ -319,13 +319,17 @@ int Explode P((Board board, int fromX, int fromY, int toX, int toY));
 typedef enum { CheckBox, ComboBox, TextBox, Button, Spin, ResetButton, SaveButton,
 		 FileName, PathName, Slider, Message, Fractional, Label, Break, EndMark } Control;
 
-/* Flags for Option.min: */		 
-#define COMBO_CALLBACK (1 << 0)
-#define NO_GETTEXT     (1 << 1)
-		 
+/* Flags Option.min used for ComboBox: */
+#define COMBO_CALLBACK	(1 << 0)
+#define NO_GETTEXT	(1 << 1)
+
+/* Flags for Option.min used for Button, SaveButton, EndMark: */
+#define SAME_ROW	(1 << 0)
+#define NO_OK		(1 << 1)
+
 typedef struct _OPT {   // [HGM] options: descriptor of UCI-style option
     int value;          // current setting, starts as default
-    int min;		// Also used for flags with ComboBox
+    int min;		// Also used for flags
     int max;
     void *handle;       // for use by front end
     void *target;       // for use by front end
@@ -437,4 +441,13 @@ void MoveHistorySet P(( char movelist[][2*MOVE_LEN], int first, int last, int cu
 void EvalGraphSet P(( int first, int last, int current, ChessProgramStats_Move * pvInfo ));
 void MakeEngineOutputTitle P((void));
 
+/* A point in time */
+typedef struct {
+    long sec;  /* Assuming this is >= 32 bits */
+    int ms;    /* Assuming this is >= 16 bits */
+} TimeMark;
+
+void GetTimeMark P((TimeMark *));
+long SubtractTimeMarks P((TimeMark *, TimeMark *));
+
 #endif /* _BACKEND */