internal WispTabletDevice(TabletDeviceInfo tabletInfo, PenThread penThread)
: base(tabletInfo)
{
_penThread = penThread;
int count = tabletInfo.StylusDevicesInfo.Length;
WispStylusDevice[] styluses = new WispStylusDevice[count];
for (int i = 0; i < count; i++)
{
StylusDeviceInfo cursorInfo = tabletInfo.StylusDevicesInfo[i];
styluses[i] = new WispStylusDevice(
this,
cursorInfo.CursorName,
cursorInfo.CursorId,
cursorInfo.CursorInverted,
cursorInfo.ButtonCollection);
}
_stylusDeviceCollection = new StylusDeviceCollection(styluses);
// We only create a TabletDevice when one is connected (physically or virtually).
// So we can log the connection in the constructor.
StylusTraceLogger.LogDeviceConnect(
new StylusTraceLogger.StylusDeviceInfo(
Id,
Name,
ProductId,
TabletHardwareCapabilities,
TabletSize,
ScreenSize,
_tabletInfo.DeviceType,
StylusDevices.Count));
}
internal TabletDevice(TabletDeviceInfo tabletInfo, PenThread penThread)
{
_tabletInfo = tabletInfo;
_penThread = penThread;
int count = tabletInfo.StylusDevicesInfo.Length;
StylusDevice[] styluses = new StylusDevice[count];
for ( int i = 0; i < count; i++ )
{
StylusDeviceInfo cursorInfo = tabletInfo.StylusDevicesInfo[i];
styluses[i] = new StylusDevice(
this,
cursorInfo.CursorName,
cursorInfo.CursorId,
cursorInfo.CursorInverted,
cursorInfo.ButtonCollection);
}
_stylusDeviceCollection = new StylusDeviceCollection(styluses);
if (_tabletInfo.DeviceType == TabletDeviceType.Touch)
{
//
_multiTouchSystemGestureLogic = new MultiTouchSystemGestureLogic();
}
}
internal TabletDevice(TabletDeviceInfo tabletInfo, PenThread penThread)
{
_tabletInfo = tabletInfo;
_penThread = penThread;
int count = tabletInfo.StylusDevicesInfo.Length;
StylusDevice[] styluses = new StylusDevice[count];
for (int i = 0; i < count; i++)
{
StylusDeviceInfo cursorInfo = tabletInfo.StylusDevicesInfo[i];
styluses[i] = new StylusDevice(
this,
cursorInfo.CursorName,
cursorInfo.CursorId,
cursorInfo.CursorInverted,
cursorInfo.ButtonCollection);
}
_stylusDeviceCollection = new StylusDeviceCollection(styluses);
if (_tabletInfo.DeviceType == TabletDeviceType.Touch)
{
//
_multiTouchSystemGestureLogic = new MultiTouchSystemGestureLogic();
}
}
protected TabletDeviceBase(TabletDeviceInfo info)
{
// Generate a wrapper for public use
TabletDevice = new TabletDevice(this);
_tabletInfo = info;
if (_tabletInfo.DeviceType == TabletDeviceType.Touch)
{
// A touch device requires multi-touch logic
_multiTouchSystemGestureLogic = new MultiTouchSystemGestureLogic();
}
}
/////////////////////////////////////////////////////////////////////////
/////////////////////////////////////////////////////////////////////
internal WispTabletDevice(TabletDeviceInfo tabletInfo, PenThread penThread)
: base(tabletInfo)
{
_penThread = penThread;
// Constructing a WispTabletDevice means we will actually use this tablet for input purposes.
// Lock the tablet and underlying WISP tablet at this point.
// This is balanced in DisposeOrDeferDisposal.
_penThread.WorkerAcquireTabletLocks(tabletInfo.PimcTablet.Value, tabletInfo.WispTabletKey);
int count = tabletInfo.StylusDevicesInfo.Length;
WispStylusDevice[] styluses = new WispStylusDevice[count];
for (int i = 0; i < count; i++)
{
StylusDeviceInfo cursorInfo = tabletInfo.StylusDevicesInfo[i];
styluses[i] = new WispStylusDevice(
this,
cursorInfo.CursorName,
cursorInfo.CursorId,
cursorInfo.CursorInverted,
cursorInfo.ButtonCollection);
}
_stylusDeviceCollection = new StylusDeviceCollection(styluses);
// We only create a TabletDevice when one is connected (physically or virtually).
// So we can log the connection in the constructor.
StylusTraceLogger.LogDeviceConnect(
new StylusTraceLogger.StylusDeviceInfo(
Id,
Name,
ProductId,
TabletHardwareCapabilities,
TabletSize,
ScreenSize,
_tabletInfo.DeviceType,
StylusDevices.Count));
}
protected override void OnDoWork()
{
try
{
// create new collection of tablets
MS.Win32.Penimc.IPimcManager pimcManager = MS.Win32.Penimc.UnsafeNativeMethods.PimcManager;
MS.Win32.Penimc.IPimcTablet pimcTablet;
pimcManager.GetTablet(_index, out pimcTablet);
// Set result data and signal we are done.
_tabletDeviceInfo = PenThreadWorker.GetTabletInfoHelper(pimcTablet);
}
catch ( System.Runtime.InteropServices.COMException )
{
// result will not be initialized if we fail due to a COM exception.
Debug.WriteLine("WorkerOperationGetTabletInfo.OnDoWork failed due to COMException");
// set to uninitialized TabletDeviceInfo struct (all zeros) to signal failure.
_tabletDeviceInfo = new TabletDeviceInfo();
}
catch ( System.ArgumentException )
{
// result will not be initialized if we fail due to an ArgumentException.
Debug.WriteLine("WorkerOperationGetTabletInfo.OnDoWork failed due to an ArgumentException");
// set to uninitialized TabletDeviceInfo struct (all zeros) to signal failure.
_tabletDeviceInfo = new TabletDeviceInfo();
}
catch ( System.UnauthorizedAccessException )
{
// result will not be initialized if we fail due to an UnauthorizedAccessException.
Debug.WriteLine("WorkerOperationGetTabletInfo.OnDoWork failed due to an UnauthorizedAccessException");
// set to uninitialized TabletDeviceInfo struct (all zeros) to signal failure.
_tabletDeviceInfo = new TabletDeviceInfo();
}
}
protected override void OnDoWork()
{
try
{
// create new collection of tablets
MS.Win32.Penimc.IPimcManager pimcManager = MS.Win32.Penimc.UnsafeNativeMethods.PimcManager;
uint cTablets;
pimcManager.GetTabletCount(out cTablets);
TabletDeviceInfo[] tablets = new TabletDeviceInfo[cTablets];
for ( uint iTablet = 0; iTablet < cTablets; iTablet++ )
{
MS.Win32.Penimc.IPimcTablet pimcTablet;
pimcManager.GetTablet(iTablet, out pimcTablet);
tablets[iTablet] = PenThreadWorker.GetTabletInfoHelper(pimcTablet);
}
// Set result data and signal we are done.
_tabletDevicesInfo = tablets;
}
catch ( System.Runtime.InteropServices.COMException )
{
// result will not be initialized if we fail due to a COM exception.
Debug.WriteLine("WorkerOperationGetTabletsInfo.OnDoWork failed due to a COMException");
// return no devices found on error.
_tabletDevicesInfo = new TabletDeviceInfo[0];
}
catch ( System.ArgumentException )
{
// result will not be initialized if we fail due to an ArgumentException.
Debug.WriteLine("WorkerOperationGetTabletsInfo.OnDoWork failed due to an ArgumentException");
// return no devices found on error.
_tabletDevicesInfo = new TabletDeviceInfo[0];
}
catch ( System.UnauthorizedAccessException )
{
// result will not be initialized if we fail due to an UnauthorizedAccessException.
Debug.WriteLine("WorkerOperationGetTabletsInfo.OnDoWork failed due to an UnauthorizedAccessException");
// return no devices found on error.
_tabletDevicesInfo = new TabletDeviceInfo[0];
}
}
private static void InitializeSupportedStylusPointProperties(IPimcTablet pimcTablet, TabletDeviceInfo tabletInfo)
{
int cProps;
int cButtons;
int pressureIndex = -1;
pimcTablet.GetPacketDescriptionInfo(out cProps, out cButtons); // Calls Unmanaged code - SecurityCritical with SUC.
List<StylusPointProperty> properties = new List<StylusPointProperty>(cProps + cButtons + 3);
for ( int i = 0; i < cProps; i++ )
{
Guid guid;
int min, max;
int units;
float res;
pimcTablet.GetPacketPropertyInfo(i, out guid, out min, out max, out units, out res); // Calls Unmanaged code - SecurityCritical with SUC.
if ( pressureIndex == -1 && guid == StylusPointPropertyIds.NormalPressure )
{
pressureIndex = i;
}
StylusPointProperty property = new StylusPointProperty(guid, false);
properties.Add(property);
}
for ( int i = 0; i < cButtons; i++ )
{
Guid buttonGuid;
pimcTablet.GetPacketButtonInfo(i, out buttonGuid); // Calls Unmanaged code - SecurityCritical with SUC.
StylusPointProperty buttonProperty = new StylusPointProperty(buttonGuid, true);
properties.Add(buttonProperty);
}
//validate we can never get X, Y at index != 0, 1
Debug.Assert(properties[StylusPointDescription.RequiredXIndex /*0*/].Id == StylusPointPropertyIds.X, "X isn't where we expect it! Fix PenImc to ask for X at index 0");
Debug.Assert(properties[StylusPointDescription.RequiredYIndex /*1*/].Id == StylusPointPropertyIds.Y, "Y isn't where we expect it! Fix PenImc to ask for Y at index 1");
// NOTE: We can't force pressure since touch digitizers may not provide this info. The following assert is bogus.
//Debug.Assert(pressureIndex == -1 || pressureIndex == StylusPointDescription.RequiredPressureIndex /*2*/,
// "Fix PenImc to ask for NormalPressure at index 2!");
if ( pressureIndex == -1 )
{
//pressure wasn't found. Add it
properties.Insert(StylusPointDescription.RequiredPressureIndex /*2*/, System.Windows.Input.StylusPointProperties.NormalPressure);
}
else
{
//this device supports pressure
tabletInfo.HardwareCapabilities |= TabletHardwareCapabilities.SupportsPressure;
}
tabletInfo.StylusPointProperties = new ReadOnlyCollection<StylusPointProperty>(properties);
tabletInfo.PressureIndex = pressureIndex;
}
private static TabletDeviceInfo GetTabletInfoHelper(IPimcTablet pimcTablet)
{
TabletDeviceInfo tabletInfo = new TabletDeviceInfo();
tabletInfo.PimcTablet = new SecurityCriticalDataClass<IPimcTablet>(pimcTablet);
pimcTablet.GetKey(out tabletInfo.Id);
pimcTablet.GetName(out tabletInfo.Name);
pimcTablet.GetPlugAndPlayId(out tabletInfo.PlugAndPlayId);
int iTabletWidth, iTabletHeight, iDisplayWidth, iDisplayHeight;
pimcTablet.GetTabletAndDisplaySize(out iTabletWidth, out iTabletHeight, out iDisplayWidth, out iDisplayHeight);
tabletInfo.SizeInfo = new TabletDeviceSizeInfo(new Size(iTabletWidth, iTabletHeight),
new Size(iDisplayWidth, iDisplayHeight));
int caps;
pimcTablet.GetHardwareCaps(out caps);
tabletInfo.HardwareCapabilities = (TabletHardwareCapabilities)caps;
int deviceType;
pimcTablet.GetDeviceType(out deviceType);
tabletInfo.DeviceType = (TabletDeviceType)(deviceType -1);
// NTRAID:WINDOWSOS#1679154-2006/06/09-WAYNEZEN,
// REENTRANCY NOTE: Let a PenThread do this work to avoid reentrancy!
// The IPimcTablet object is created in the pen thread. If we access it from the UI thread,
// COM will set up message pumping which will cause reentrancy here.
InitializeSupportedStylusPointProperties(pimcTablet, tabletInfo);
tabletInfo.StylusDevicesInfo = GetStylusDevicesInfo(pimcTablet);
return tabletInfo;
}
internal bool HandleTabletAdded(uint wisptisIndex, ref uint tabletIndexChanged)
{
if (_tablets == null)
{
throw new ObjectDisposedException("TabletDeviceCollection");
}
tabletIndexChanged = UInt32.MaxValue;
// REENTRANCY NOTE: Let a PenThread do this work to avoid reentrancy!
// On return you get the tablet info needed to
// create a tablet devices (and stylus device info gets
// cached in penimc too which avoids calls to wisptis.exe).
// Use existing penthread if we have one otherwise grab an available one.
PenThread penThread = _tablets.Length > 0 ? _tablets[0].PenThread :
PenThreadPool.GetPenThreadForPenContext(null);
TabletDeviceInfo tabletInfo = penThread.WorkerGetTabletInfo(wisptisIndex);
// If we failed due to a COM exception on the pen thread then return
if (tabletInfo.PimcTablet == null)
{
return(true); // make sure we rebuild our tablet collection. (return true + MaxValue).
}
// if mouse tabletdevice then ignore it.
if (tabletInfo.DeviceType == (TabletDeviceType)(-1))
{
_indexMouseTablet = wisptisIndex; // update index.
return(false); // TabletDevices did not change.
}
// Now see if this is a duplicate add call we want to filter out (ie - already added to tablet collection).
uint indexFound = UInt32.MaxValue;
for (uint i = 0; i < _tablets.Length; i++)
{
// If it is the mouse tablet device we want to ignore it.
if (_tablets[i].Id == tabletInfo.Id)
{
indexFound = i;
break;
}
}
// We only want to add this if it is not currently in the collection. Wisptis will send
// us duplicate adds at times so this is a work around for that issue.
uint tabletIndex = UInt32.MaxValue;
if (indexFound == UInt32.MaxValue)
{
tabletIndex = wisptisIndex;
if (tabletIndex > _indexMouseTablet)
{
tabletIndex--;
}
else
{
_indexMouseTablet++;
}
// if index is out of range then ignore it. Return of MaxValue causes a rebuild of the devices.
if (tabletIndex <= _tablets.Length)
{
try
{
// Add new tablet at end of collection
AddTablet(tabletIndex, new TabletDevice(tabletInfo, penThread));
}
catch (InvalidOperationException ex)
{
// This is caused by the Stylus ID not being unique when trying
// to register it in the StylusLogic.__stylusDeviceMap. If we
// come across a dup then we should rebuild the tablet device collection.
// There seems to be an issue in wisptis where different tablet IDs get
// duplicate Stylus Ids when installing the VHID test devices.
if (ex.Data.Contains("System.Windows.Input.StylusLogic"))
{
return(true); // trigger the tabletdevices to be rebuilt.
}
else
{
throw; // not an expected exception, rethrow it.
}
}
tabletIndexChanged = tabletIndex;
return(true);
}
else
{
return(true); // bogus index. Return true so that the caller can rebuild the collection.
}
}
else
{
return(false); // We found this tablet device already. Don't do anything.
}
}