--- old/src/java.desktop/windows/native/libawt/windows/awt_Component.h	2017-08-15 15:41:21.000000000 +0100
+++ new/src/java.desktop/windows/native/libawt/windows/awt_Component.h	2017-08-15 15:41:21.000000000 +0100
@@ -67,7 +67,10 @@
 const int ALL_MK_BUTTONS = MK_LBUTTON|MK_MBUTTON|MK_RBUTTON;
 const int X_BUTTONS = MK_XBUTTON1|MK_XBUTTON2;
 
-
+// The allowable difference between coordinates of the WM_TOUCH event and the
+// corresponding WM_LBUTTONDOWN/WM_LBUTTONUP event letting to associate these
+// events, when their coordinates are slightly different.
+const int TOUCH_MOUSE_COORDS_DELTA = 10;
 
 // Whether to check for embedded frame and adjust location
 #define CHECK_EMBEDDED 0
@@ -385,7 +388,7 @@
     void SendMouseEvent(jint id, jlong when, jint x, jint y,
                         jint modifiers, jint clickCount,
                         jboolean popupTrigger, jint button = 0,
-                        MSG *msg = NULL);
+                        MSG *msg = NULL, BOOL causedByTouchEvent = FALSE);
 
     /*
      * Allocate and initialize a new java.awt.event.MouseWheelEvent, and
@@ -528,6 +531,7 @@
     virtual MsgRouting WmNcMouseUp(WPARAM hitTest, int x, int y, int button);
     virtual MsgRouting WmWindowPosChanging(LPARAM windowPos);
     virtual MsgRouting WmWindowPosChanged(LPARAM windowPos);
+    virtual void WmTouch(WPARAM wParam, LPARAM lParam);
 
     // NB: 64-bit: vkey is wParam of the message, but other API's take
     // vkey parameters of type UINT, so we do the cast before dispatching.
@@ -764,6 +768,11 @@
     */
     UINT m_mouseButtonClickAllowed;
 
+    BOOL m_touchDownOccurred;
+    BOOL m_touchUpOccurred;
+    POINT m_touchDownPoint;
+    POINT m_touchUpPoint;
+
     BOOL m_bSubclassed;
     BOOL m_bPauseDestroy;