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));
}
}
}
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;
}
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);
}
}