internal void DisposeOrDeferDisposal()
        {
            // Only dispose when no input events are left in the queue
            if (CanDispose)
            {
                // Make sure this device is not the current one.
                if (Tablet.CurrentTabletDevice == this.TabletDevice)
                {
                    StylusLogic.GetCurrentStylusLogicAs <WispLogic>().SelectStylusDevice(null, null, true);
                }

                // A disconnect will be logged in the dispose as WPF will have gotten rid of the tablet.
                StylusTraceLogger.LogDeviceDisconnect(_tabletInfo.Id);

                // DDVSO:174153
                // Force tablets to clean up as soon as they are disposed.  This helps to reduce
                // COM references that might be waiting for RCWs to finalize.
                IPimcTablet2 tablet = _tabletInfo.PimcTablet?.Value;
                _tabletInfo.PimcTablet = null;

                if (tablet != null)
                {
                    // DDVSO:514949
                    // Balance calls in PenThreadWorker.GetTabletInfoHelper and CPimcTablet::Init.
                    PenThread.WorkerReleaseTabletLocks(tablet, _tabletInfo.WispTabletKey);

                    Marshal.ReleaseComObject(tablet);
                }

                StylusDeviceCollection styluses = _stylusDeviceCollection;
                _stylusDeviceCollection = null;

                if (styluses != null)
                {
                    styluses.Dispose();
                }

                _penThread         = null;
                _isDisposalPending = false;

                // DDVSO:614343
                // Ensure that we are marked disposed and no longer attempt to finalize.
                _disposed = true;
                GC.SuppressFinalize(this);
            }
            else
            {
                _isDisposalPending = true;
            }
        }
示例#2
0
        internal void DisposeOrDeferDisposal()
        {
            // Only dispose when no input events are left in the queue
            if (CanDispose)
            {
                // Make sure this device is not the current one.
                if (Tablet.CurrentTabletDevice == this.TabletDevice)
                {
                    StylusLogic.GetCurrentStylusLogicAs <WispLogic>().SelectStylusDevice(null, null, true);
                }

                // A disconnect will be logged in the dispose as WPF will have gotten rid of the tablet.
                StylusTraceLogger.LogDeviceDisconnect(_tabletInfo.Id);

                // DDVSO:174153
                // Force tablets to clean up as soon as they are disposed.  This helps to reduce
                // COM references that might be waiting for RCWs to finalize.
                IPimcTablet2 tablet = _tabletInfo.PimcTablet?.Value;
                _tabletInfo.PimcTablet = null;

                if (tablet != null)
                {
                    Marshal.ReleaseComObject(tablet);
                }

                StylusDeviceCollection styluses = _stylusDeviceCollection;
                _stylusDeviceCollection = null;

                if (styluses != null)
                {
                    styluses.Dispose();
                }

                _penThread         = null;
                _isDisposalPending = false;
            }
            else
            {
                _isDisposalPending = true;
            }
        }