public BackgroundTouch(TouchForm tForm) : base()
{
touchForm = tForm;
Win32TouchFunctions.INTERACTION_CONTEXT_CONFIGURATION[] cfg = new Win32TouchFunctions.INTERACTION_CONTEXT_CONFIGURATION[]
{
new Win32TouchFunctions.INTERACTION_CONTEXT_CONFIGURATION(Win32TouchFunctions.INTERACTION.TAP,
Win32TouchFunctions.INTERACTION_CONFIGURATION_FLAGS.TAP |
Win32TouchFunctions.INTERACTION_CONFIGURATION_FLAGS.TAP_DOUBLE),
new Win32TouchFunctions.INTERACTION_CONTEXT_CONFIGURATION(Win32TouchFunctions.INTERACTION.SECONDARY_TAP,
Win32TouchFunctions.INTERACTION_CONFIGURATION_FLAGS.SECONDARY_TAP),
new Win32TouchFunctions.INTERACTION_CONTEXT_CONFIGURATION(Win32TouchFunctions.INTERACTION.HOLD,
Win32TouchFunctions.INTERACTION_CONFIGURATION_FLAGS.HOLD),
new Win32TouchFunctions.INTERACTION_CONTEXT_CONFIGURATION(Win32TouchFunctions.INTERACTION.MANIPULATION,
Win32TouchFunctions.INTERACTION_CONFIGURATION_FLAGS.MANIPULATION |
Win32TouchFunctions.INTERACTION_CONFIGURATION_FLAGS.MANIPULATION_SCALING |
Win32TouchFunctions.INTERACTION_CONFIGURATION_FLAGS.MANIPULATION_TRANSLATION_X |
Win32TouchFunctions.INTERACTION_CONFIGURATION_FLAGS.MANIPULATION_TRANSLATION_Y)
};
Win32TouchFunctions.SetInteractionConfigurationInteractionContext(Context, cfg.Length, cfg);
}
public void StopProcessing()
{
foreach (int pointerID in _activePointers)
{
Win32TouchFunctions.RemovePointerInteractionContext(_context, pointerID);
}
_activePointers.Clear();
Win32TouchFunctions.StopInteractionContext(_context);
}
public void ProcessPointerFrames(int pointerID, int frameID)
{
if (_lastFrameID != frameID)
{
_lastFrameID = frameID;
int entriesCount = 0;
int pointerCount = 0;
if (!Win32TouchFunctions.GetPointerFrameInfoHistory(pointerID, ref entriesCount, ref pointerCount, IntPtr.Zero))
{
Win32TouchFunctions.CheckLastError();
}
Win32TouchFunctions.POINTER_INFO[] piArr = new Win32TouchFunctions.POINTER_INFO[entriesCount * pointerCount];
if (!Win32TouchFunctions.GetPointerFrameInfoHistory(pointerID, ref entriesCount, ref pointerCount, piArr))
{
Win32TouchFunctions.CheckLastError();
}
IntPtr hr = Win32TouchFunctions.ProcessPointerFramesInteractionContext(_context, entriesCount, pointerCount, piArr);
if (Win32TouchFunctions.FAILED(hr))
{
Debug.WriteLine("ProcessPointerFrames failed: " + Win32TouchFunctions.GetMessageForHR(hr));
}
}
}
public void RemovePointer(int pointerID)
{
Win32TouchFunctions.RemovePointerInteractionContext(_context, pointerID);
_activePointers.Remove(pointerID);
}
public void AddPointer(int pointerID)
{
Win32TouchFunctions.AddPointerInteractionContext(_context, pointerID);
_activePointers.Add(pointerID);
}
public void Dispose()
{
Win32TouchFunctions.DisposeInteractionContext(_context);
_context = IntPtr.Zero;
}
public BaseTouchHandler()
{
_context = Win32TouchFunctions.CreateInteractionContext(this, SynchronizationContext.Current);
//Win32.SetPropertyInteractionContext(Context, Win32.INTERACTION_CONTEXT_PROPERTY.FILTER_POINTERS, Win32.ICP_FILTER_POINTERS_ON);
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case Win32TouchFunctions.WM_POINTERDOWN:
case Win32TouchFunctions.WM_POINTERUP:
case Win32TouchFunctions.WM_POINTERUPDATE:
case Win32TouchFunctions.WM_POINTERCAPTURECHANGED:
break;
default:
base.WndProc(ref m);
return;
}
int pointerID = Win32TouchFunctions.GET_POINTER_ID(m.WParam);
Win32TouchFunctions.POINTER_INFO pi = new Win32TouchFunctions.POINTER_INFO();
if (!Win32TouchFunctions.GetPointerInfo(pointerID, ref pi))
{
Win32TouchFunctions.CheckLastError();
}
switch (m.Msg)
{
case Win32TouchFunctions.WM_POINTERDOWN:
{
if ((pi.PointerFlags & Win32TouchFunctions.POINTER_FLAGS.PRIMARY) != 0)
{
this.Capture = true;
}
Point pt = PointToClient(pi.PtPixelLocation.ToPoint());
background.AddPointer(pointerID);
background.ProcessPointerFrames(pointerID, pi.FrameID);
}
break;
case Win32TouchFunctions.WM_POINTERUP:
if ((pi.PointerFlags & Win32TouchFunctions.POINTER_FLAGS.PRIMARY) != 0)
{
this.Capture = false;
}
if (background.ActivePointers.Contains(pointerID))
{
background.ProcessPointerFrames(pointerID, pi.FrameID);
background.RemovePointer(pointerID);
}
break;
case Win32TouchFunctions.WM_POINTERUPDATE:
if (background.ActivePointers.Contains(pointerID))
{
background.ProcessPointerFrames(pointerID, pi.FrameID);
}
break;
case Win32TouchFunctions.WM_POINTERCAPTURECHANGED:
this.Capture = false;
if (background.ActivePointers.Contains(pointerID))
{
background.StopProcessing();
}
break;
}
m.Result = IntPtr.Zero;
}
public TouchForm() : base()
{
Win32TouchFunctions.EnableMouseInPointer(false);
background = new BackgroundTouch(this);
}
protected override void WndProc(ref Message m)
{
try {
switch (m.Msg)
{
case Win32TouchFunctions.WM_POINTERDOWN:
case Win32TouchFunctions.WM_POINTERUP:
case Win32TouchFunctions.WM_POINTERUPDATE:
case Win32TouchFunctions.WM_POINTERCAPTURECHANGED:
break;
default:
base.WndProc(ref m);
return;
}
int pointerID = Win32TouchFunctions.GET_POINTER_ID(m.WParam);
Win32TouchFunctions.POINTER_INFO pi = new Win32TouchFunctions.POINTER_INFO();
if (!Win32TouchFunctions.GetPointerInfo(pointerID, ref pi))
{
Win32TouchFunctions.CheckLastError();
}
DrawPoint pt = PointToClient(pi.PtPixelLocation.ToPoint());
switch (m.Msg)
{
case Win32TouchFunctions.WM_POINTERDOWN:
{
if ((pi.PointerFlags & Win32TouchFunctions.POINTER_FLAGS.PRIMARY) != 0)
{
this.Capture = true;
}
var pointerDown = PointerDown;
if (pointerDown != null)
{
pointerDown(new object(), new TouchEventArgs(pointerID, new Point(pt.X, pt.Y)));
}
}
break;
case Win32TouchFunctions.WM_POINTERUP:
if ((pi.PointerFlags & Win32TouchFunctions.POINTER_FLAGS.PRIMARY) != 0)
{
this.Capture = false;
}
var pointerUp = PointerUp;
if (pointerUp != null)
{
pointerUp(new object(), new TouchEventArgs(pointerID, new Point(pt.X, pt.Y)));
}
break;
case Win32TouchFunctions.WM_POINTERUPDATE:
var pointerUpdate = PointerUpdate;
if (pointerUpdate != null)
{
pointerUpdate(new object(), new TouchEventArgs(pointerID, new Point(pt.X, pt.Y)));
}
break;
case Win32TouchFunctions.WM_POINTERCAPTURECHANGED:
this.Capture = false;
var pointerLostCapture = PointerLostCapture;
if (pointerLostCapture != null)
{
pointerLostCapture(new object(), new TouchEventArgs(pointerID, new Point(pt.X, pt.Y)));
}
break;
}
m.Result = IntPtr.Zero;
}
catch (Exception e) {
Log.Warning(e.Message);
}
}
public TouchForm() : base()
{
Win32TouchFunctions.EnableMouseInPointer(false);
}
