internal PenContext[] CreateContexts(IntPtr hwnd, PenContexts contexts)
{
int c = Count + _deferredTablets.Count;
PenContext[] ctxs = new PenContext[c];
int i = 0;
foreach (TabletDevice tablet in _tablets)
{
ctxs[i++] = tablet.CreateContext(hwnd, contexts);
}
// DevDiv:1078091
// We need to re-enable contexts for anything that is marked
// as a pending disposal. This is so we continue getting any
// Wisp messages that might be waiting to come over the shared
// memory channel.
foreach (TabletDevice tablet in _deferredTablets)
{
ctxs[i++] = tablet.CreateContext(hwnd, contexts);
}
return(ctxs);
}
internal PenContext(IPimcContext pimcContext, IntPtr hwnd,
PenContexts contexts, bool supportInRange, bool isIntegrated,
int id, IntPtr commHandle, int tabletDeviceId)
{
_contexts = contexts;
_pimcContext = new SecurityCriticalDataClass<IPimcContext>(pimcContext);
_id = id;
_tabletDeviceId = tabletDeviceId;
_commHandle = new SecurityCriticalData<IntPtr>(commHandle);
_hwnd = new SecurityCriticalData<IntPtr>(hwnd);
_supportInRange = supportInRange;
_isIntegrated = isIntegrated;
}
internal PenContext(IPimcContext2 pimcContext, IntPtr hwnd,
PenContexts contexts, bool supportInRange, bool isIntegrated,
int id, IntPtr commHandle, int tabletDeviceId)
{
_contexts = contexts;
_pimcContext = new SecurityCriticalDataClass <IPimcContext2>(pimcContext);
_id = id;
_tabletDeviceId = tabletDeviceId;
_commHandle = new SecurityCriticalData <IntPtr>(commHandle);
_hwnd = new SecurityCriticalData <IntPtr>(hwnd);
_supportInRange = supportInRange;
_isIntegrated = isIntegrated;
UpdateScreenMeasurementsPending = false;
}
internal PenContext[] CreateContexts(IntPtr hwnd, PenContexts contexts)
{
int c = Count;
PenContext[] ctxs = new PenContext[c];
int i = 0;
foreach (TabletDevice tablet in _tablets)
{
ctxs[i] = tablet.CreateContext(hwnd, contexts);
i++;
}
return(ctxs);
}
internal PenContext CreateContext(IntPtr hwnd, PenContexts contexts)
{
PenContext penContext;
bool supportInRange = (this.TabletHardwareCapabilities & TabletHardwareCapabilities.HardProximity) != 0;
bool isIntegrated = (this.TabletHardwareCapabilities & TabletHardwareCapabilities.Integrated) != 0;
// Use a PenThread to create a tablet context so we don't cause reentrancy.
PenContextInfo result = _penThread.WorkerCreateContext(hwnd, _tabletInfo.PimcTablet.Value);
penContext = new PenContext(result.PimcContext != null ? result.PimcContext.Value : null,
hwnd, contexts,
supportInRange, isIntegrated, result.ContextId,
result.CommHandle != null ? result.CommHandle.Value : IntPtr.Zero,
Id);
return(penContext);
}
private PresentationSource DetermineValidSource(PresentationSource inputSource, StylusPointCollection stylusPoints, PenContexts penContextsOfPoints)
{
HwndSource hwndSource = (HwndSource)inputSource;
// See if window has been closed or is invalid
if (inputSource.CompositionTarget == null || inputSource.CompositionTarget.IsDisposed ||
hwndSource == null || hwndSource.IsHandleNull)
{
PresentationSource newSource = null;
// use capture as fallback first
if (_stylusCapture != null)
{
DependencyObject containingVisual = InputElement.GetContainingVisual(_stylusCapture as DependencyObject);
PresentationSource capturedSource = PresentationSource.CriticalFromVisual(containingVisual);
if (capturedSource != null &&
capturedSource.CompositionTarget != null &&
!capturedSource.CompositionTarget.IsDisposed)
{
newSource = capturedSource; // Good new source to use!
}
}
// Now try last screen point hittesting to find a new window/PresetationSource.
if (newSource == null && stylusPoints != null)
{
Point ptScreen;
// If we have the last penContext then we can remap the coordinates properly.
// Otherwise we just use the last stylus mouse location to figure out a PresenationSource.
if (penContextsOfPoints != null)
{
ptScreen = _stylusLogic.DeviceUnitsFromMeasureUnits((Point)stylusPoints[0]);
// map from window to screen (ie - add the window location).
ptScreen.Offset(penContextsOfPoints.DestroyedLocation.X, penContextsOfPoints.DestroyedLocation.Y);
}
else
{
ptScreen = _lastMouseScreenLocation;
}
IntPtr hwndHit = UnsafeNativeMethods.WindowFromPoint((int)ptScreen.X, (int)ptScreen.Y);
if (hwndHit != IntPtr.Zero)
{
HwndSource newHwndSource = HwndSource.CriticalFromHwnd(hwndHit);
if (newHwndSource != null && newHwndSource.Dispatcher == Dispatcher)
{
newSource = newHwndSource;
}
}
}
return newSource;
}
else
{
return inputSource;
}
}
internal PenContext CreateContext(IntPtr hwnd, PenContexts contexts)
{
PenContext penContext;
bool supportInRange = (this.TabletHardwareCapabilities & TabletHardwareCapabilities.HardProximity) != 0;
bool isIntegrated = (this.TabletHardwareCapabilities & TabletHardwareCapabilities.Integrated) != 0;
// Use a PenThread to create a tablet context so we don't cause reentrancy.
PenContextInfo result = _penThread.WorkerCreateContext(hwnd, _tabletInfo.PimcTablet.Value);
penContext = new PenContext(result.PimcContext != null ? result.PimcContext.Value : null,
hwnd, contexts,
supportInRange, isIntegrated, result.ContextId,
result.CommHandle != null ? result.CommHandle.Value : IntPtr.Zero,
Id);
return penContext;
}
internal PenContext[] CreateContexts(IntPtr hwnd, PenContexts contexts)
{
int c = Count;
PenContext[] ctxs = new PenContext[c];
int i = 0;
foreach (TabletDevice tablet in _tablets)
{
ctxs[i] = tablet.CreateContext(hwnd, contexts);
i++;
}
return ctxs;
}
internal void RegisterHwndForInput(InputManager inputManager, PresentationSource inputSource)
{
HwndSource hwndSource = (HwndSource)inputSource;
// Query the transform from HwndTarget when the first window is created.
if (!_transformInitialized)
{
if (hwndSource != null && hwndSource.CompositionTarget != null)
{
_transformToDevice = hwndSource.CompositionTarget.TransformToDevice;
Debug.Assert(_transformToDevice.HasInverse);
_transformInitialized = true;
}
}
// Keep track so we don't bother looking for changes if someone happened to query this before
// an Avalon window was created where we get TabletAdd/Removed notification.
bool initializedTablets = (_tabletDeviceCollection == null);
// This causes EnableCore to be called on TabletPC systems which enabled stylus input!
TabletDeviceCollection tablets = TabletDevices;
// Make sure that lock() does not cause reentrancy.
using(Dispatcher.DisableProcessing())
{
lock (__penContextsLock)
{
if (__penContextsMap.ContainsKey(inputSource))
{
throw new InvalidOperationException(SR.Get(SRID.PenService_WindowAlreadyRegistered));
}
PenContexts penContexts = new PenContexts(inputManager.StylusLogic, inputSource);
__penContextsMap[inputSource] = penContexts;
// If FIRST one set this as the one to manage TabletAdded/Removed notifications.
if (__penContextsMap.Count == 1)
{
// Make sure our view of TabletDevices is up to date we didn't just cause it
// to be initialized and we had some real tablet devices.
if (!initializedTablets && tablets.Count > 0)
{
tablets.UpdateTablets();
}
}
// Detect if this window is disabled. If so then let the pencontexts know.
int style = UnsafeNativeMethods.GetWindowLong(new HandleRef(this,hwndSource.CriticalHandle), NativeMethods.GWL_STYLE);
if ((style & NativeMethods.WS_DISABLED) != 0)
{
penContexts.IsWindowDisabled = true;
}
if ( _inputEnabled )
penContexts.Enable();
}
}
}