-#define MAX(a, b) ((a) > (b) ? (a) : (b))
-#define MIN(a, b) ((a) < (b) ? (a) : (b))
-#define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
-#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask))
-#define LENGTH(x) (sizeof x / sizeof x[0])
-#define MAXTAGLEN 16
-#define MOUSEMASK (BUTTONMASK|PointerMotionMask)
-#define TAGMASK ((int)((1LL << LENGTH(tags)) - 1))
-#define TEXTW(x) (textnw(x, strlen(x)) + dc.font.height)
+#define BUTTONMASK (ButtonPressMask|ButtonReleaseMask)
+#define CLEANMASK(mask) (mask & ~(numlockmask|LockMask))
+#define INRECT(X,Y,RX,RY,RW,RH) ((X) >= (RX) && (X) < (RX) + (RW) && (Y) >= (RY) && (Y) < (RY) + (RH))
+#define ISVISIBLE(x) (x->tags & tagset[seltags])
+#define LENGTH(x) (sizeof x / sizeof x[0])
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#define MAXTAGLEN 16
+#define MOUSEMASK (BUTTONMASK|PointerMotionMask)
+#define TAGMASK ((int)((1LL << LENGTH(tags)) - 1))
+#define TEXTW(x) (textnw(x, strlen(x)) + dc.font.height)