diff --git a/uppsrc/CtrlCore/CtrlDraw.cpp b/uppsrc/CtrlCore/CtrlDraw.cpp
index bf21e56e7..0dca4640a 100644
--- a/uppsrc/CtrlCore/CtrlDraw.cpp
+++ b/uppsrc/CtrlCore/CtrlDraw.cpp
@@ -2,7 +2,7 @@
 
 NAMESPACE_UPP
 
-#define LLOG(x)        DLOG(x)
+#define LLOG(x)     // DLOG(x)
 #define LTIMING(x)  // TIMING(x)
 
 bool Ctrl::globalbackpaint;
diff --git a/uppsrc/CtrlCore/CtrlMouse.cpp b/uppsrc/CtrlCore/CtrlMouse.cpp
index cbf59ea07..db92a0395 100644
--- a/uppsrc/CtrlCore/CtrlMouse.cpp
+++ b/uppsrc/CtrlCore/CtrlMouse.cpp
@@ -2,7 +2,7 @@
 
 NAMESPACE_UPP
 
-#define LLOG(x)  //  DLOG(x)
+#define LLOG(x)   // DLOG(x)
 
 Ptr<Ctrl> Ctrl::eventCtrl;
 Ptr<Ctrl> Ctrl::mouseCtrl;
diff --git a/uppsrc/CtrlCore/Win32Proc.cpp b/uppsrc/CtrlCore/Win32Proc.cpp
index 85fdf7a75..d93b3119f 100644
--- a/uppsrc/CtrlCore/Win32Proc.cpp
+++ b/uppsrc/CtrlCore/Win32Proc.cpp
@@ -234,8 +234,11 @@ LRESULT Ctrl::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) {
 			EndIgnore();
 			return 0L;
 		}
-		if(_this)
-			DoMouse(MOUSEWHEEL, Point((dword)lParam), (short)HIWORD(wParam));
+		if(_this) {
+			Point p(0, 0);
+			::ClientToScreen(hwnd, p);
+			DoMouse(MOUSEWHEEL, Point((dword)lParam) - p, (short)HIWORD(wParam));
+		}
 		if(_this) PostInput();
 		return 0L;
 	case WM_SETCURSOR: