diff -r db2eab0beb45 -r cfd3445107b4 tuikit/driver_curses.py
--- a/tuikit/driver_curses.py	Sun Jan 27 23:51:59 2013 +0100
+++ b/tuikit/driver_curses.py	Wed Jan 30 00:38:48 2013 +0100
@@ -318,8 +318,11 @@
 
         if bstate & curses.REPORT_MOUSE_POSITION:
             if self._mouse_last_pos != (x, y):
+                if self._mouse_last_pos[0] is not None:
+                    relx = x - (self._mouse_last_pos[0] or 0)
+                    rely = y - (self._mouse_last_pos[1] or 0)
+                    out += [('mousemove', 0, x, y, relx, rely)]
                 self._mouse_last_pos = (x, y)
-                out += [('mousemove', x, y)]
 
         # we are interested only in changes, not buttons already pressed before event
         if self._mouse_last_bstate is not None:
@@ -331,17 +334,17 @@
             self._mouse_last_bstate = bstate
 
         if bstate & curses.BUTTON1_PRESSED:
-            out += [('mousedown', x, y, 1)]
+            out += [('mousedown', 1, x, y)]
         if bstate & curses.BUTTON2_PRESSED:
-            out += [('mousedown', x, y, 2)]
+            out += [('mousedown', 2, x, y)]
         if bstate & curses.BUTTON3_PRESSED:
-            out += [('mousedown', x, y, 3)]
+            out += [('mousedown', 3, x, y)]
         if bstate & curses.BUTTON1_RELEASED:
-            out += [('mouseup', x, y, 1)]
+            out += [('mouseup', 1, x, y)]
         if bstate & curses.BUTTON2_RELEASED:
-            out += [('mouseup', x, y, 2)]
+            out += [('mouseup', 2, x, y)]
         if bstate & curses.BUTTON3_RELEASED:
-            out += [('mouseup', x, y, 3)]
+            out += [('mouseup', 3, x, y)]
 
         # reset last pos when pressed/released
         if len(out) > 0 and out[-1][0] in ('mousedown', 'mouseup'):
@@ -432,26 +435,30 @@
 
         out = []
 
-        if t in (0x20, 0x21, 0x22): # button press
+        if t in (0x20, 0x21, 0x22):
+            # button press
             btn = t - 0x1f
             if not btn in self.mbtnstack:
                 self.mbtnstack.append(btn)
                 self._mouse_last_pos = (None, None)
-                out += [('mousedown', x, y, btn)]
+                out += [('mousedown', btn, x, y)]
             else:
+                # mouse move
                 if self._mouse_last_pos != (x, y):
+                    if self._mouse_last_pos[0] is not None:
+                        relx = x - self._mouse_last_pos[0]
+                        rely = y - self._mouse_last_pos[1]
+                        out += [('mousemove', btn, x, y, relx, rely)]
                     self._mouse_last_pos = (x, y)
-                    out += [('mousemove', x, y, btn)]
-
-        elif t == 0x23: # button release
+        elif t == 0x23:
+            # button release
             btn = self.mbtnstack.pop()
             self._mouse_last_pos = (None, None)
-            out += [('mouseup', x, y, btn)]
-
-        elif t in (0x60, 0x61): # wheel up, down
+            out += [('mouseup', btn, x, y)]
+        elif t in (0x60, 0x61):
+            # wheel up, down
             btn = 4 + t - 0x60
-            out += [('mousewheel', x, y, btn)]
-
+            out += [('mousewheel', btn, x, y)]
         else:
             raise Exception('Unknown mouse event: %x' % t)