public Window1()
: base()
{
InitializeComponent();
inkCanvas1.StylusSystemGesture += new StylusSystemGestureEventHandler(inkCanvas1_StylusSystemGesture);
//<Snippet2>
Stylus.SetIsFlicksEnabled(canvas1, false);
//</Snippet2>
//<Snippet4>
Stylus.SetIsTapFeedbackEnabled(canvas1, false);
//</Snippet4>
//<Snippet5>
bool tapFeedbackEnabled = Stylus.GetIsTapFeedbackEnabled(canvas1);
//</Snippet5>
//<Snippet6>
bool flicksEnabled = Stylus.GetIsFlicksEnabled(canvas1);
//</Snippet6>
canvas1.StylusSystemGesture += new StylusSystemGestureEventHandler(canvas1_StylusSystemGesture);
}
internal IntPtr FilterMessage(IntPtr hwnd, WindowMessage msg, IntPtr wParam, IntPtr lParam, ref bool handled)
{
IntPtr result = IntPtr.Zero;
// It is possible to be re-entered during disposal. Just return.
if (null == _source || null == _source.Value)
{
return(result);
}
switch (msg)
{
case WindowMessage.WM_ENABLE:
_stylusLogic.Value.OnWindowEnableChanged(hwnd, (int)NativeMethods.IntPtrToInt32(wParam) == 0);
break;
case WindowMessage.WM_TABLET_QUERYSYSTEMGESTURESTATUS:
handled = true;
NativeMethods.POINT pt1 = new NativeMethods.POINT(
NativeMethods.SignedLOWORD(lParam),
NativeMethods.SignedHIWORD(lParam));
SafeNativeMethods.ScreenToClient(new HandleRef(this, hwnd), pt1);
Point ptClient1 = new Point(pt1.x, pt1.y);
IInputElement inputElement = StylusDevice.LocalHitTest(_source.Value, ptClient1);
if (inputElement != null)
{
// walk up the parent chain
DependencyObject elementCur = (DependencyObject)inputElement;
bool isPressAndHoldEnabled = Stylus.GetIsPressAndHoldEnabled(elementCur);
bool isFlicksEnabled = Stylus.GetIsFlicksEnabled(elementCur);
bool isTapFeedbackEnabled = Stylus.GetIsTapFeedbackEnabled(elementCur);
bool isTouchFeedbackEnabled = Stylus.GetIsTouchFeedbackEnabled(elementCur);
uint flags = 0;
if (!isPressAndHoldEnabled)
{
flags |= TABLET_PRESSANDHOLD_DISABLED;
}
if (!isTapFeedbackEnabled)
{
flags |= TABLET_TAPFEEDBACK_DISABLED;
}
if (isTouchFeedbackEnabled)
{
flags |= TABLET_TOUCHUI_FORCEON;
}
else
{
flags |= TABLET_TOUCHUI_FORCEOFF;
}
if (!isFlicksEnabled)
{
flags |= TABLET_FLICKS_DISABLED;
}
result = new IntPtr(flags);
}
break;
case WindowMessage.WM_TABLET_FLICK:
handled = true;
int flickData = NativeMethods.IntPtrToInt32(wParam);
// We always handle any scroll actions if we are enabled. We do this when we see the SystemGesture Flick come through.
// Note: Scrolling happens on window flicked on even if it is not the active window.
if (_stylusLogic != null && _stylusLogic.Value.Enabled && (StylusLogic.GetFlickAction(flickData) == 1))
{
result = new IntPtr(0x0001); // tell UIHub the flick has already been handled.
}
break;
}
if (handled && EventTrace.IsEnabled(EventTrace.Keyword.KeywordInput | EventTrace.Keyword.KeywordPerf, EventTrace.Level.Info))
{
EventTrace.EventProvider.TraceEvent(EventTrace.Event.WClientInputMessage, EventTrace.Keyword.KeywordInput | EventTrace.Keyword.KeywordPerf, EventTrace.Level.Info,
(_source.Value.CompositionTarget != null ? _source.Value.CompositionTarget.Dispatcher.GetHashCode() : 0),
hwnd.ToInt64(),
msg,
(int)wParam,
(int)lParam);
}
return(result);
}
