376 lines
		
	
	
		
			9.9 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			376 lines
		
	
	
		
			9.9 KiB
		
	
	
	
		
			C
		
	
	
	
| /*
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|  *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
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|  *
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|  *Permission is hereby granted, free of charge, to any person obtaining
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|  * a copy of this software and associated documentation files (the
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|  *"Software"), to deal in the Software without restriction, including
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|  *without limitation the rights to use, copy, modify, merge, publish,
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|  *distribute, sublicense, and/or sell copies of the Software, and to
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|  *permit persons to whom the Software is furnished to do so, subject to
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|  *the following conditions:
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|  *
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|  *The above copyright notice and this permission notice shall be
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|  *included in all copies or substantial portions of the Software.
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|  *
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|  *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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|  *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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|  *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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|  *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
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|  *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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|  *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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|  *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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|  *
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|  *Except as contained in this notice, the name of the XFree86 Project
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|  *shall not be used in advertising or otherwise to promote the sale, use
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|  *or other dealings in this Software without prior written authorization
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|  *from the XFree86 Project.
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|  *
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|  * Authors:	Dakshinamurthy Karra
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|  *		Suhaib M Siddiqi
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|  *		Peter Busch
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|  *		Harold L Hunt II
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|  */
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| 
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| #ifdef HAVE_XWIN_CONFIG_H
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| #include <xwin-config.h>
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| #endif
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| #include "win.h"
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| 
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| #include "inputstr.h"
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| #include "exevents.h" /* for button/axes labels */
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| #include "xserver-properties.h"
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| #include "inpututils.h"
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| 
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| /* Peek the internal button mapping */
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| static CARD8 const *g_winMouseButtonMap = NULL;
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| 
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| 
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| /*
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|  * Local prototypes
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|  */
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| 
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| static void
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| winMouseCtrl (DeviceIntPtr pDevice, PtrCtrl *pCtrl);
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| 
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| 
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| static void
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| winMouseCtrl (DeviceIntPtr pDevice, PtrCtrl *pCtrl)
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| {
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| }
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| 
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| 
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| /*
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|  * See Porting Layer Definition - p. 18
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|  * This is known as a DeviceProc
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|  */
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| 
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| int
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| winMouseProc (DeviceIntPtr pDeviceInt, int iState)
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| {
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|   int 			lngMouseButtons, i;
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|   int			lngWheelEvents = 2;
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|   CARD8			*map;
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|   DevicePtr		pDevice = (DevicePtr) pDeviceInt;
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|   Atom *btn_labels;
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|   Atom axes_labels[2];
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| 
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|   switch (iState)
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|     {
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|     case DEVICE_INIT:
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|       /* Get number of mouse buttons */
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|       lngMouseButtons = GetSystemMetrics(SM_CMOUSEBUTTONS);
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| 
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|       /* Mapping of windows events to X events:
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|        * LEFT:1 MIDDLE:2 RIGHT:3
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|        * SCROLL_UP:4 SCROLL_DOWN:5
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|        * XBUTTON 1:6 XBUTTON 2:7 ...
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|        *
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|        * To map scroll wheel correctly we need at least the 3 normal buttons
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|        */
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|       if (lngMouseButtons < 3)
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|         lngMouseButtons = 3;
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|       winMsg(X_PROBED, "%d mouse buttons found\n", lngMouseButtons);
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| 
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|       /* allocate memory: 
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|        * number of buttons + 2x mouse wheel event + 1 extra (offset for map) 
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|        */
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|       map = malloc(sizeof(CARD8) * (lngMouseButtons + lngWheelEvents + 1));
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|     
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|       /* initalize button map */ 
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|       map[0] = 0;
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|       for (i=1; i <= lngMouseButtons + lngWheelEvents; i++)
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|       	map[i] = i;
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| 
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|       btn_labels = calloc((lngMouseButtons + lngWheelEvents), sizeof(Atom));
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|       btn_labels[0] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_LEFT);
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|       btn_labels[1] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_MIDDLE);
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|       btn_labels[2] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_RIGHT);
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|       btn_labels[3] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_WHEEL_UP);
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|       btn_labels[4] = XIGetKnownProperty(BTN_LABEL_PROP_BTN_WHEEL_DOWN);
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| 
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|       axes_labels[0] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_X);
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|       axes_labels[1] = XIGetKnownProperty(AXIS_LABEL_PROP_REL_Y);
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| 
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|       InitPointerDeviceStruct (pDevice,
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| 			       map,
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| 			       lngMouseButtons + lngWheelEvents,
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| 			       btn_labels,
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| 			       winMouseCtrl,
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| 			       GetMotionHistorySize(),
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| 			       2,
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| 			       axes_labels);
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|       free(map);
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|       free(btn_labels);
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| 
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|       g_winMouseButtonMap = pDeviceInt->button->map;
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|       break;
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| 
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|     case DEVICE_ON:
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|       pDevice->on = TRUE;
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|       break;
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| 
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|     case DEVICE_CLOSE:
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|       g_winMouseButtonMap = NULL;
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| 
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|     case DEVICE_OFF:
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|       pDevice->on = FALSE;
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|       break;
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|     }
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|   return Success;
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| }
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| 
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| 
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| /* Handle the mouse wheel */
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| int
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| winMouseWheel (ScreenPtr pScreen, int iDeltaZ)
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| {
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|   winScreenPriv(pScreen);
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|   int button; /* Button4 or Button5 */
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| 
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|   /* Button4 = WheelUp */
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|   /* Button5 = WheelDown */
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| 
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|   /* Do we have any previous delta stored? */
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|   if ((pScreenPriv->iDeltaZ > 0
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|        && iDeltaZ > 0)
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|       || (pScreenPriv->iDeltaZ < 0
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| 	  && iDeltaZ < 0))
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|     {
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|       /* Previous delta and of same sign as current delta */
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|       iDeltaZ += pScreenPriv->iDeltaZ;
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|       pScreenPriv->iDeltaZ = 0;
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|     }
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|   else
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|     {
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|       /*
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|        * Previous delta of different sign, or zero.
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|        * We will set it to zero for either case,
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|        * as blindly setting takes just as much time
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|        * as checking, then setting if necessary :)
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|        */
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|       pScreenPriv->iDeltaZ = 0;
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|     }
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| 
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|   /*
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|    * Only process this message if the wheel has moved further than
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|    * WHEEL_DELTA
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|    */
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|   if (iDeltaZ >= WHEEL_DELTA || (-1 * iDeltaZ) >= WHEEL_DELTA)
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|     {
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|       pScreenPriv->iDeltaZ = 0;
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| 	  
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|       /* Figure out how many whole deltas of the wheel we have */
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|       iDeltaZ /= WHEEL_DELTA;
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|     }
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|   else
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|     {
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|       /*
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|        * Wheel has not moved past WHEEL_DELTA threshold;
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|        * we will store the wheel delta until the threshold
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|        * has been reached.
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|        */
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|       pScreenPriv->iDeltaZ = iDeltaZ;
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|       return 0;
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|     }
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| 
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|   /* Set the button to indicate up or down wheel delta */
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|   if (iDeltaZ > 0)
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|     {
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|       button = Button4;
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|     }
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|   else
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|     {
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|       button = Button5;
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|     }
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| 
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|   /*
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|    * Flip iDeltaZ to positive, if negative,
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|    * because always need to generate a *positive* number of
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|    * button clicks for the Z axis.
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|    */
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|   if (iDeltaZ < 0)
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|     {
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|       iDeltaZ *= -1;
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|     }
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| 
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|   /* Generate X input messages for each wheel delta we have seen */
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|   while (iDeltaZ--)
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|     {
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|       /* Push the wheel button */
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|       winMouseButtonsSendEvent (ButtonPress, button);
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| 
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|       /* Release the wheel button */
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|       winMouseButtonsSendEvent (ButtonRelease, button);
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|     }
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| 
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|   return 0;
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| }
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| 
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| 
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| /*
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|  * Enqueue a mouse button event
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|  */
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| 
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| void
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| winMouseButtonsSendEvent (int iEventType, int iButton)
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| {
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|   ValuatorMask mask;
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| 
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|   if (g_winMouseButtonMap)
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|     iButton = g_winMouseButtonMap[iButton];
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| 
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|   valuator_mask_zero(&mask);
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|   QueuePointerEvents(g_pwinPointer, iEventType, iButton,
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| 		     POINTER_RELATIVE, &mask);
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| 
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| #if CYGDEBUG
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|   ErrorF("winMouseButtonsSendEvent: iEventType: %d, iButton: %d\n",
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|           iEventType, iButton);
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| #endif
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| }
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| 
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| 
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| /*
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|  * Decide what to do with a Windows mouse message
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|  */
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| 
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| int
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| winMouseButtonsHandle (ScreenPtr pScreen,
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| 		       int iEventType, int iButton,
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| 		       WPARAM wParam)
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| {
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|   winScreenPriv(pScreen);
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|   winScreenInfo		*pScreenInfo = pScreenPriv->pScreenInfo;
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| 
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|   /* Send button events right away if emulate 3 buttons is off */
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|   if (pScreenInfo->iE3BTimeout == WIN_E3B_OFF)
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|     {
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|       /* Emulate 3 buttons is off, send the button event */
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|       winMouseButtonsSendEvent (iEventType, iButton);
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|       return 0;
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|     }
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| 
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|   /* Emulate 3 buttons is on, let the fun begin */
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|   if (iEventType == ButtonPress
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|       && pScreenPriv->iE3BCachedPress == 0
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|       && !pScreenPriv->fE3BFakeButton2Sent)
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|     {
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|       /*
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|        * Button was pressed, no press is cached,
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|        * and there is no fake button 2 release pending.
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|        */
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| 
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|       /* Store button press type */
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|       pScreenPriv->iE3BCachedPress = iButton;
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| 
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|       /*
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|        * Set a timer to send this button press if the other button
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|        * is not pressed within the timeout time.
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|        */
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|       SetTimer (pScreenPriv->hwndScreen,
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| 		WIN_E3B_TIMER_ID,
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| 		pScreenInfo->iE3BTimeout,
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| 		NULL);
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|     }
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|   else if (iEventType == ButtonPress
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| 	   && pScreenPriv->iE3BCachedPress != 0
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| 	   && pScreenPriv->iE3BCachedPress != iButton
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| 	   && !pScreenPriv->fE3BFakeButton2Sent)
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|     {
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|       /*
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|        * Button press is cached, other button was pressed,
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|        * and there is no fake button 2 release pending.
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|        */
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| 
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|       /* Mouse button was cached and other button was pressed */
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|       KillTimer (pScreenPriv->hwndScreen, WIN_E3B_TIMER_ID);
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|       pScreenPriv->iE3BCachedPress = 0;
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| 
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|       /* Send fake middle button */
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|       winMouseButtonsSendEvent (ButtonPress, Button2);
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| 
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|       /* Indicate that a fake middle button event was sent */
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|       pScreenPriv->fE3BFakeButton2Sent = TRUE;
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|     }
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|   else if (iEventType == ButtonRelease
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| 	   && pScreenPriv->iE3BCachedPress == iButton)
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|     {
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|       /*
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|        * Cached button was released before timer ran out,
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|        * and before the other mouse button was pressed.
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|        */
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|       KillTimer (pScreenPriv->hwndScreen, WIN_E3B_TIMER_ID);
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|       pScreenPriv->iE3BCachedPress = 0;
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| 
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|       /* Send cached press, then send release */
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|       winMouseButtonsSendEvent (ButtonPress, iButton);
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|       winMouseButtonsSendEvent (ButtonRelease, iButton);
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|     }
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|   else if (iEventType == ButtonRelease
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| 	   && pScreenPriv->fE3BFakeButton2Sent
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| 	   && !(wParam & MK_LBUTTON)
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| 	   && !(wParam & MK_RBUTTON))
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|     {
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|       /*
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|        * Fake button 2 was sent and both mouse buttons have now been released
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|        */
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|       pScreenPriv->fE3BFakeButton2Sent = FALSE;
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|       
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|       /* Send middle mouse button release */
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|       winMouseButtonsSendEvent (ButtonRelease, Button2);
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|     }
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|   else if (iEventType == ButtonRelease
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| 	   && pScreenPriv->iE3BCachedPress == 0
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| 	   && !pScreenPriv->fE3BFakeButton2Sent)
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|     {
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|       /*
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|        * Button was release, no button is cached,
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|        * and there is no fake button 2 release is pending.
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|        */
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|       winMouseButtonsSendEvent (ButtonRelease, iButton);
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|     }
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| 
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|   return 0;
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| }
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| 
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| /**
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|  * Enqueue a motion event.
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|  *
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|  *  XXX: miPointerMove does exactly this, but is static :-( (and uses a static buffer)
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|  *
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|  */
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| void winEnqueueMotion(int x, int y)
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| {
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|   int valuators[2];
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|   ValuatorMask mask;
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| 
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|   miPointerSetPosition(g_pwinPointer, POINTER_RELATIVE, &x, &y);
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|   valuators[0] = x;
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|   valuators[1] = y;
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| 
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|   valuator_mask_set_range(&mask, 0, 2, valuators);
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|   QueuePointerEvents(g_pwinPointer, MotionNotify, 0,
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| 		     POINTER_ABSOLUTE | POINTER_SCREEN, &mask);
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| 
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| }
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