return new LRESULT (code);				}			}			if (OS.GetKeyState (OS.VK_CONTROL) < 0) {				int hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);				if (hItem != 0) {					TVITEM tvItem = new TVITEM ();					tvItem.mask = OS.TVIF_STATE;					tvItem.stateMask = OS.TVIS_SELECTED;					tvItem.hItem = hItem;					OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);					boolean oldSelected = (tvItem.state & OS.TVIS_SELECTED) != 0;					int hNewItem = 0;					switch (wParam) {						case OS.VK_UP:							hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_PREVIOUSVISIBLE, hItem);							break;						case OS.VK_DOWN:							hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hItem);							break;						case OS.VK_HOME:							hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_ROOT, 0);							break;						case OS.VK_PRIOR:							hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0);							if (hNewItem == hItem) {								OS.SendMessage (handle, OS.WM_VSCROLL, OS.SB_PAGEUP, 0);								hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0);							}							break;						case OS.VK_NEXT:										RECT rect = new RECT (), clientRect = new RECT ();							OS.GetClientRect (handle, clientRect);							hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_FIRSTVISIBLE, 0);							do {								int hVisible = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_NEXTVISIBLE, hNewItem);								if (hVisible == 0) break;								rect.left = hVisible;								OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect);								if (rect.bottom > clientRect.bottom) break;								if ((hNewItem = hVisible) == hItem) {									OS.SendMessage (handle, OS.WM_VSCROLL, OS.SB_PAGEDOWN, 0);								}							} while (hNewItem != 0);							break;						case OS.VK_END:							hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_LASTVISIBLE, 0);							break;					}					if (hNewItem != 0) {						OS.SendMessage (handle, OS.TVM_ENSUREVISIBLE, 0, hNewItem);						tvItem.hItem = hNewItem;						OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);						boolean newSelected = (tvItem.state & OS.TVIS_SELECTED) != 0;						if (!newSelected && drawCount == 0) {							OS.UpdateWindow (handle);							OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0);							/*							* This code is intentionally commented.							*///							OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0);						}						ignoreSelect = true;						OS.SendMessage (handle, OS.TVM_SELECTITEM, OS.TVGN_CARET, hNewItem);						ignoreSelect = false;						if (oldSelected) {							tvItem.state = OS.TVIS_SELECTED;							tvItem.hItem = hItem;							OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);						}						if (!newSelected) {							tvItem.state = 0;							tvItem.hItem = hNewItem;							OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);						}						if (!newSelected && drawCount == 0) {							RECT rect1 = new RECT (), rect2 = new RECT ();							rect1.left = hItem;  rect2.left = hNewItem;							OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1);							OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2);							/*							* This code is intentionally commented.							*///							OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0);							OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0);							if (OS.IsWinCE) {								OS.InvalidateRect (handle, rect1, false);								OS.InvalidateRect (handle, rect2, false);								OS.UpdateWindow (handle);							} else {								int flags = OS.RDW_UPDATENOW | OS.RDW_INVALIDATE;								OS.RedrawWindow (handle, rect1, 0, flags);								OS.RedrawWindow (handle, rect2, 0, flags);							}						}						return LRESULT.ZERO;					}				}			}			int code = callWindowProc (OS.WM_KEYDOWN, wParam, lParam);			hAnchor = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);			return new LRESULT (code);		}	}	return result;}LRESULT WM_KILLFOCUS (int wParam, int lParam) {	LRESULT result = super.WM_KILLFOCUS (wParam, lParam);	if ((style & SWT.SINGLE) != 0) return result;	/*	* Feature in Windows.  When multiple item have	* the TVIS_SELECTED state, Windows redraws only	* the focused item in the color used to show the	* selection when the tree loses or gains focus.	* The fix is to force Windows to redraw all the	* visible items when focus is gained or lost.	*/	OS.InvalidateRect (handle, null, false);	return result;}LRESULT WM_LBUTTONDOWN (int wParam, int lParam) {	/*	* Feature in Windows.  When a tree item is	* reselected, Windows does not issue a WM_NOTIFY.	* This is inconsistent with the list widget and	* other widgets in Windows.  The fix is to detect	* the case when an item is reselected and issue	* the notification.  The first part of this work	* around is to ensure that the user has selected	* an item.	*/	TVHITTESTINFO lpht = new TVHITTESTINFO ();	lpht.x = (short) (lParam & 0xFFFF);	lpht.y = (short) (lParam >> 16);	OS.SendMessage (handle, OS.TVM_HITTEST, 0, lpht);	if (lpht.hItem == 0 || (lpht.flags & OS.TVHT_ONITEM) == 0) {		sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);		int code = callWindowProc (OS.WM_LBUTTONDOWN, wParam, lParam);		if (OS.GetCapture () != handle) OS.SetCapture (handle);		return new LRESULT (code);	}		/* Look for check/uncheck */	if ((style & SWT.CHECK) != 0) {		if ((lpht.flags & OS.TVHT_ONITEMSTATEICON) != 0) {			TVITEM tvItem = new TVITEM ();			tvItem.hItem = lpht.hItem;			tvItem.mask = OS.TVIF_PARAM | OS.TVIF_STATE;				tvItem.stateMask = OS.TVIS_STATEIMAGEMASK;			OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);			int state = tvItem.state >> 12;			if ((state & 0x1) != 0) {				state++;			} else  {				--state;			}			tvItem.state = state << 12;			OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);			if (!OS.IsWinCE) {					int id = tvItem.hItem;				if (OS.COMCTL32_MAJOR >= 6) {					id = OS.SendMessage (handle, OS.TVM_MAPHTREEITEMTOACCID, tvItem.hItem, 0);				}				OS.NotifyWinEvent (OS.EVENT_OBJECT_FOCUS, handle, OS.OBJID_CLIENT, id);				}			Event event = new Event ();			event.item = items [tvItem.lParam];			event.detail = SWT.CHECK;			postEvent (SWT.Selection, event);			sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);			if (OS.GetCapture () != handle) OS.SetCapture (handle);			return LRESULT.ZERO;		}	}	/* Get the selected state of the item under the mouse */	TVITEM tvItem = new TVITEM ();	tvItem.mask = OS.TVIF_STATE;	tvItem.stateMask = OS.TVIS_SELECTED;	boolean hittestSelected = false;	if ((style & SWT.MULTI) != 0) {		tvItem.hItem = lpht.hItem;		OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);		hittestSelected = (tvItem.state & OS.TVIS_SELECTED) != 0;	}		/* Get the selected state of the last selected item */	int hOldItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);	if ((style & SWT.MULTI) != 0) {		tvItem.hItem = hOldItem;		OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);		/* Check for CONTROL or drag selection */		if (hittestSelected || (wParam & OS.MK_CONTROL) != 0) {			if (drawCount == 0) {				OS.UpdateWindow (handle);				OS.DefWindowProc (handle, OS.WM_SETREDRAW, 0, 0);				/*				* This code is intentionally commented.				*///				OS.SendMessage (handle, OS.WM_SETREDRAW, 0, 0);			}		} else {			deselectAll ();		}	}	/* Do the selection */	sendMouseEvent (SWT.MouseDown, 1, OS.WM_LBUTTONDOWN, wParam, lParam);	dragStarted = gestureCompleted = false;	ignoreDeselect = ignoreSelect = true;	int code = callWindowProc (OS.WM_LBUTTONDOWN, wParam, lParam);	ignoreDeselect = ignoreSelect = false;	if (dragStarted && OS.GetCapture () != handle) OS.SetCapture (handle);	int hNewItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, OS.TVGN_CARET, 0);	/*	* Feature in Windows.  When the old and new focused item	* are the same, Windows does not check to make sure that	* the item is actually selected, not just focused.  The	* fix is to force the item to draw selected by setting	* the state mask.  This is only necessary when the tree	* is single select.	*/	if ((style & SWT.SINGLE) != 0) {		if (hOldItem == hNewItem) {			tvItem.mask = OS.TVIF_STATE;			tvItem.state = OS.TVIS_SELECTED;			tvItem.stateMask = OS.TVIS_SELECTED;			tvItem.hItem = hNewItem;			OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);		}	}		/* Reselect the last item that was unselected */	if ((style & SWT.MULTI) != 0) {				/* Check for CONTROL and reselect the last item */		if (hittestSelected || (wParam & OS.MK_CONTROL) != 0) {			if (hOldItem == hNewItem && hOldItem == lpht.hItem) {				if ((wParam & OS.MK_CONTROL) != 0) {					tvItem.state ^= OS.TVIS_SELECTED;					if (dragStarted) tvItem.state = OS.TVIS_SELECTED;					OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);				}			} else {				if ((tvItem.state & OS.TVIS_SELECTED) != 0) {					tvItem.state = OS.TVIS_SELECTED;					OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);				}				if ((wParam & OS.MK_CONTROL) != 0 && !dragStarted) {					if (hittestSelected) {						tvItem.state = 0;						tvItem.hItem = lpht.hItem;						OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);					}				}			}			if (drawCount == 0) {				RECT rect1 = new RECT (), rect2 = new RECT ();				rect1.left = hOldItem;  rect2.left = hNewItem;				OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1);				OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2);				/*				* This code is intentionally commented.				*///				OS.SendMessage (handle, OS.WM_SETREDRAW, 1, 0);				OS.DefWindowProc (handle, OS.WM_SETREDRAW, 1, 0);				if (OS.IsWinCE) {					OS.InvalidateRect (handle, rect1, false);					OS.InvalidateRect (handle, rect2, false);					OS.UpdateWindow (handle);				} else {					int flags = OS.RDW_UPDATENOW | OS.RDW_INVALIDATE;					OS.RedrawWindow (handle, rect1, 0, flags);					OS.RedrawWindow (handle, rect2, 0, flags);				} 			}		}		/* Check for SHIFT or normal select and delect/reselect items */		if ((wParam & OS.MK_CONTROL) == 0) {			if (!hittestSelected || !dragStarted) {				tvItem.state = 0;				int oldProc = OS.GetWindowLong (handle, OS.GWL_WNDPROC);				OS.SetWindowLong (handle, OS.GWL_WNDPROC, TreeProc);					for (int i=0; i<items.length; i++) {					TreeItem item = items [i];					if (item != null && item.handle != hNewItem) {						tvItem.hItem = item.handle;						OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);					}				}				tvItem.hItem = hNewItem;				tvItem.state = OS.TVIS_SELECTED;				OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);				OS.SetWindowLong (handle, OS.GWL_WNDPROC, oldProc);				if ((wParam & OS.MK_SHIFT) != 0) {					RECT rect1 = new RECT ();					if (hAnchor == 0) hAnchor = hNewItem;					rect1.left = hAnchor;					if (OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect1) != 0) {						RECT rect2 = rect2 = new RECT ();						rect2.left = hNewItem;						OS.SendMessage (handle, OS.TVM_GETITEMRECT, 1, rect2);						int flags = rect1.top < rect2.top ? OS.TVGN_NEXTVISIBLE : OS.TVGN_PREVIOUSVISIBLE;									tvItem.state = OS.TVIS_SELECTED;						int hItem = tvItem.hItem = hAnchor;						OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);						while (hItem != hNewItem) {							tvItem.hItem = hItem;							OS.SendMessage (handle, OS.TVM_SETITEM, 0, tvItem);							hItem = OS.SendMessage (handle, OS.TVM_GETNEXTITEM, flags, hItem);						}					}				}			}		}	}	if ((wParam & OS.MK_SHIFT) == 0) hAnchor = hNewItem;				/* Issue notification */	if (!gestureCompleted) {		tvItem.hItem = hNewItem;		tvItem.mask = OS.TVIF_PARAM;		OS.SendMessage (handle, OS.TVM_GETITEM, 0, tvItem);		Event event = new Event ();		event.item = items [tvItem.lParam];		postEvent (SWT.Selection, event);	}	gestureCompleted = false;		/*	* Feature in Windows.  Inside WM_LBUTTONDOWN and WM_RBUTTONDOWN,	* the widget starts a modal loop to determine if the user wants	* to begin a drag/drop operation or marque select.  Unfortunately,	* this modal loop eats the corresponding mouse up.  The fix is to	* detect the cases when the modal loop has eaten the mouse up and	* issue a fake mouse up.	*/	if (dragStarted) {		Event event = new Event ();		event.x = (short) (lParam & 0xFFFF);		event.y = (short) (lParam >> 16);		postEvent (SWT.DragDetect, event);	} else {		sendMouseEvent (SWT.MouseUp, 1, OS.WM_LBUTTONUP, wParam, lParam);	}	dragStarted = false;	return new LRESULT (code);}LRESULT WM_RBUTTONDOWN (int wParam, int lParam) {	/*	* Feature in Windows.  The receiver uses WM_RBUTTONDOWN	* to initiate a drag/drop operation depending on how the	* user moves the mouse.  If the user clicks the right button,	* without moving the mouse, the tree consumes the corresponding	* WM_RBUTTONUP.  The fix is to avoid calling the window proc for	* the tree.	*/	sendMouseEvent (SWT.MouseDown, 3, OS.WM_RBUTTONDOWN, wParam, lParam);	/*	* This code is intentionally commented.	*///	if (OS.GetCapture () != handle) OS.SetCapture (handle);	setFocus ();		/*	* Feature in Windows.  When the user selects a tree item	* with the right mouse button, the item remains selected	* only as long as the user does not release or move the	* mouse.  As soon as this happens, the selection snaps	* back to the previous selection.  This behavior can be	* observed in the Explorer but is not instantly apparent	* because