public void ProcessPointerFrames(int pointerID, int frameID)
{
if (_lastFrameID != frameID)
{
_lastFrameID = frameID;
int entriesCount = 0;
int pointerCount = 0;
if (!Win32.GetPointerFrameInfoHistory(pointerID, ref entriesCount, ref pointerCount, IntPtr.Zero))
{
Win32.CheckLastError();
}
Win32.POINTER_INFO[] piArr = new Win32.POINTER_INFO[entriesCount * pointerCount];
if (!Win32.GetPointerFrameInfoHistory(pointerID, ref entriesCount, ref pointerCount, piArr))
{
Win32.CheckLastError();
}
IntPtr hr = Win32.ProcessPointerFramesInteractionContext(_context, entriesCount, pointerCount, piArr);
if (Win32.FAILED(hr))
{
Debug.WriteLine("ProcessPointerFrames failed: " + Win32.GetMessageForHR(hr));
}
}
}
public void ProcessPointerFrames(int pointerID, int frameID)
{
if (_lastFrameID != frameID)
{
_lastFrameID = frameID;
int entriesCount = 0;
int pointerCount = 0;
if (!Win32.GetPointerFrameInfoHistory(pointerID, ref entriesCount, ref pointerCount, IntPtr.Zero))
{
Win32.CheckLastError();
}
Win32.POINTER_INFO[] piArr = new Win32.POINTER_INFO[entriesCount * pointerCount];
if (!Win32.GetPointerFrameInfoHistory(pointerID, ref entriesCount, ref pointerCount, piArr))
{
Win32.CheckLastError();
}
//System.Windows.Forms.MessageBox.Show(string.Format("ec:{0} pc:{1} piArr:{2}",entriesCount,pointerCount,piArr.Length));
IntPtr hr = Win32.ProcessPointerFramesInteractionContext(_context, (UInt32)entriesCount, (UInt32)pointerCount, piArr);
if (Win32.FAILED(hr))
{
Debug.WriteLine("ProcessPointerFrames failed: " + Win32.GetMessageForHR(hr));
}
}
}
protected override void WndProc(ref Message m)
{
switch (m.Msg)
{
case Win32.WM_POINTERDOWN:
case Win32.WM_POINTERUP:
case Win32.WM_POINTERUPDATE:
case Win32.WM_POINTERCAPTURECHANGED:
break;
default:
base.WndProc(ref m);
return;
}
int pointerID = Win32.GET_POINTER_ID(m.WParam);
Win32.POINTER_INFO pi = new Win32.POINTER_INFO();
if (!Win32.GetPointerInfo(pointerID, ref pi))
{
Win32.CheckLastError();
}
bool processed = false;
switch (m.Msg)
{
case Win32.WM_POINTERDOWN:
{
if ((pi.PointerFlags & Win32.POINTER_FLAGS.PRIMARY) != 0)
{
this.Capture = true;
}
Point pt = PointToClient(pi.PtPixelLocation.ToPoint());
foreach (Figure f in _figures)
{
if (f.HitTest(pt.X, pt.Y))
{
f.BringToFront();
f.AddPointer(pointerID);
f.ProcessPointerFrames(pointerID, pi.FrameID);
if (f.Pivot)
{
Point pt1 = Point.Ceiling(f.Points[0]);
Point pt0 = Point.Ceiling(f.Points[3]);
pt0.X = (pt0.X + pt1.X) / 2;
pt0.Y = (pt0.Y + pt1.Y) / 2;
pt0 = PointToScreen(pt0);
Win32.SetPivotInteractionContext(f.Context, pt0.X, pt0.Y, 0f);
}
processed = true;
break;
}
}
if (!processed)
{
_background.AddPointer(pointerID);
_background.ProcessPointerFrames(pointerID, pi.FrameID);
}
}
break;
case Win32.WM_POINTERUP:
if ((pi.PointerFlags & Win32.POINTER_FLAGS.PRIMARY) != 0)
{
this.Capture = false;
}
foreach (Figure f in _figures)
{
if (f.ActivePointers.Contains(pointerID))
{
f.ProcessPointerFrames(pointerID, pi.FrameID);
f.RemovePointer(pointerID);
processed = true;
break;
}
}
if (!processed && _background.ActivePointers.Contains(pointerID))
{
_background.ProcessPointerFrames(pointerID, pi.FrameID);
_background.RemovePointer(pointerID);
}
break;
case Win32.WM_POINTERUPDATE:
foreach (Figure f in _figures)
{
if (f.ActivePointers.Contains(pointerID))
{
f.ProcessPointerFrames(pointerID, pi.FrameID);
processed = true;
break;
}
}
if (!processed && _background.ActivePointers.Contains(pointerID))
{
_background.ProcessPointerFrames(pointerID, pi.FrameID);
}
break;
case Win32.WM_POINTERCAPTURECHANGED:
this.Capture = false;
foreach (Figure f in _figures)
{
if (f.ActivePointers.Contains(pointerID))
{
f.StopProcessing();
processed = true;
break;
}
}
if (!processed && _background.ActivePointers.Contains(pointerID))
{
_background.StopProcessing();
}
break;
}
m.Result = IntPtr.Zero;
}