Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / Orcas / NetFXw7 / wpf / src / Framework / MS / Internal / Ink / ISFClipboardData.cs / 1 / ISFClipboardData.cs
//---------------------------------------------------------------------------- // // File: ISFClipboardData.cs // // Description: // A class which can convert the clipboard data from/to StrokeCollection // // Features: // // History: // 11/17/2004 waynezen: Created // // Copyright (C) 2001 by Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- using System; using System.IO; using System.Windows; using System.Windows.Controls; using System.Windows.Ink; using System.Security; using System.Security.Permissions; namespace MS.Internal.Ink { internal class ISFClipboardData : ClipboardData { //------------------------------------------------------------------------------- // // Constructors // //------------------------------------------------------------------------------- #region Constructors // The default constructor internal ISFClipboardData() { } // The constructor which takes StrokeCollection argument internal ISFClipboardData(StrokeCollection strokes) { _strokes = strokes; } // Checks if the data can be pasted. internal override bool CanPaste(IDataObject dataObject) { return dataObject.GetDataPresent(StrokeCollection.InkSerializedFormat, false); } #endregion Constructors //-------------------------------------------------------------------------------- // // Protected Methods // //------------------------------------------------------------------------------- #region Protected Methods // Checks if there is stroke data in this instance protected override bool CanCopy() { return (Strokes != null && Strokes.Count != 0); } // Copies the internal strokes to the IDataObject ////// Critical: This code asserts to set data on a data object /// [SecurityCritical] protected override void DoCopy(IDataObject dataObject) { // samgeo - Presharp issue // Presharp gives a warning when local IDisposable variables are not closed // in this case, we can't call Dispose since it will also close the underlying stream // which needs to be open for consumers to read #pragma warning disable 1634, 1691 #pragma warning disable 6518 // Save the data in the data object. MemoryStream stream = new MemoryStream(); Strokes.Save(stream); stream.Position = 0; (new UIPermission(UIPermissionClipboard.AllClipboard)).Assert();//BlessedAssert try { dataObject.SetData(StrokeCollection.InkSerializedFormat, stream); } finally { UIPermission.RevertAssert(); } #pragma warning restore 6518 #pragma warning restore 1634, 1691 } // Retrieves the stroks from the IDataObject protected override void DoPaste(IDataObject dataObject) { // Check if we have ink data MemoryStream stream = dataObject.GetData(StrokeCollection.InkSerializedFormat) as MemoryStream; StrokeCollection newStrokes = null; bool fSucceeded = false; if ( stream != null && stream != Stream.Null ) { try { // Now add these ink strokes to the InkCanvas ink collection. newStrokes = new StrokeCollection(stream); fSucceeded = true; } catch ( ArgumentException ) { // If an invalid stream was passed in, we should get ArgumentException here. // We catch this specific exception and eat it. fSucceeded = false; } } // Depending on whether we are succeeded or not, we set the correct stroke collection here. _strokes = fSucceeded ? newStrokes : new StrokeCollection(); } #endregion Protected Methods //-------------------------------------------------------------------------------- // // Internal Properties // //-------------------------------------------------------------------------------- #region Internal Properties // Gets the strokes internal StrokeCollection Strokes { get { return _strokes; } } #endregion Internal Properties //------------------------------------------------------------------------------- // // Private Fields // //-------------------------------------------------------------------------------- #region Private Fields StrokeCollection _strokes; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //---------------------------------------------------------------------------- // // File: ISFClipboardData.cs // // Description: // A class which can convert the clipboard data from/to StrokeCollection // // Features: // // History: // 11/17/2004 waynezen: Created // // Copyright (C) 2001 by Microsoft Corporation. All rights reserved. // //--------------------------------------------------------------------------- using System; using System.IO; using System.Windows; using System.Windows.Controls; using System.Windows.Ink; using System.Security; using System.Security.Permissions; namespace MS.Internal.Ink { internal class ISFClipboardData : ClipboardData { //------------------------------------------------------------------------------- // // Constructors // //------------------------------------------------------------------------------- #region Constructors // The default constructor internal ISFClipboardData() { } // The constructor which takes StrokeCollection argument internal ISFClipboardData(StrokeCollection strokes) { _strokes = strokes; } // Checks if the data can be pasted. internal override bool CanPaste(IDataObject dataObject) { return dataObject.GetDataPresent(StrokeCollection.InkSerializedFormat, false); } #endregion Constructors //-------------------------------------------------------------------------------- // // Protected Methods // //------------------------------------------------------------------------------- #region Protected Methods // Checks if there is stroke data in this instance protected override bool CanCopy() { return (Strokes != null && Strokes.Count != 0); } // Copies the internal strokes to the IDataObject ////// Critical: This code asserts to set data on a data object /// [SecurityCritical] protected override void DoCopy(IDataObject dataObject) { // samgeo - Presharp issue // Presharp gives a warning when local IDisposable variables are not closed // in this case, we can't call Dispose since it will also close the underlying stream // which needs to be open for consumers to read #pragma warning disable 1634, 1691 #pragma warning disable 6518 // Save the data in the data object. MemoryStream stream = new MemoryStream(); Strokes.Save(stream); stream.Position = 0; (new UIPermission(UIPermissionClipboard.AllClipboard)).Assert();//BlessedAssert try { dataObject.SetData(StrokeCollection.InkSerializedFormat, stream); } finally { UIPermission.RevertAssert(); } #pragma warning restore 6518 #pragma warning restore 1634, 1691 } // Retrieves the stroks from the IDataObject protected override void DoPaste(IDataObject dataObject) { // Check if we have ink data MemoryStream stream = dataObject.GetData(StrokeCollection.InkSerializedFormat) as MemoryStream; StrokeCollection newStrokes = null; bool fSucceeded = false; if ( stream != null && stream != Stream.Null ) { try { // Now add these ink strokes to the InkCanvas ink collection. newStrokes = new StrokeCollection(stream); fSucceeded = true; } catch ( ArgumentException ) { // If an invalid stream was passed in, we should get ArgumentException here. // We catch this specific exception and eat it. fSucceeded = false; } } // Depending on whether we are succeeded or not, we set the correct stroke collection here. _strokes = fSucceeded ? newStrokes : new StrokeCollection(); } #endregion Protected Methods //-------------------------------------------------------------------------------- // // Internal Properties // //-------------------------------------------------------------------------------- #region Internal Properties // Gets the strokes internal StrokeCollection Strokes { get { return _strokes; } } #endregion Internal Properties //------------------------------------------------------------------------------- // // Private Fields // //-------------------------------------------------------------------------------- #region Private Fields StrokeCollection _strokes; #endregion Private Fields } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved.
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- Mappings.cs
- OleDbRowUpdatedEvent.cs
- HtmlProps.cs
- DependencyObjectType.cs
- TableLayoutCellPaintEventArgs.cs
- ToggleButtonAutomationPeer.cs
- SoapWriter.cs
- ProxyWebPart.cs
- OracleException.cs
- MenuStrip.cs
- ToolStripArrowRenderEventArgs.cs
- Transform.cs
- EntityClientCacheEntry.cs
- StringFormat.cs
- RectAnimationClockResource.cs
- MDIClient.cs
- ValueQuery.cs
- WsdlImporterElementCollection.cs
- CountdownEvent.cs
- LogicalExpressionEditor.cs
- DataGridViewToolTip.cs
- WebUtil.cs
- Component.cs
- WebPartTransformerCollection.cs
- AlternateViewCollection.cs
- ListBase.cs
- SqlCacheDependencyDatabaseCollection.cs
- LoginUtil.cs
- PropertyValueChangedEvent.cs
- TemporaryBitmapFile.cs
- MsmqInputSessionChannel.cs
- Tool.cs
- DeclarativeCatalogPart.cs
- EqualityComparer.cs
- URI.cs
- SqlDataSourceConfigureFilterForm.cs
- AVElementHelper.cs
- FloaterParagraph.cs
- ObjectDisposedException.cs
- DrawingVisualDrawingContext.cs
- ColorConvertedBitmapExtension.cs
- WmlImageAdapter.cs
- ObjectCloneHelper.cs
- MarkupExtensionParser.cs
- CodeConditionStatement.cs
- WebScriptMetadataMessageEncoderFactory.cs
- PackageDigitalSignature.cs
- COM2ExtendedUITypeEditor.cs
- WindowsFormsLinkLabel.cs
- util.cs
- XmlStringTable.cs
- ExceptionCollection.cs
- EnvelopedPkcs7.cs
- SystemDiagnosticsSection.cs
- InputLangChangeEvent.cs
- StrokeDescriptor.cs
- Speller.cs
- UIElementHelper.cs
- HwndSourceParameters.cs
- InkCollectionBehavior.cs
- PathTooLongException.cs
- BufferModeSettings.cs
- Sql8ExpressionRewriter.cs
- Parser.cs
- TdsParser.cs
- XMLSyntaxException.cs
- ModelService.cs
- TableLayoutPanelBehavior.cs
- SmiGettersStream.cs
- CaseInsensitiveHashCodeProvider.cs
- EntityDataSourceUtil.cs
- XpsThumbnail.cs
- CookielessHelper.cs
- StringConverter.cs
- ClientTarget.cs
- DataSetUtil.cs
- CreateRefExpr.cs
- WindowsGraphicsWrapper.cs
- VarInfo.cs
- WebProxyScriptElement.cs
- StorageMappingItemLoader.cs
- PlatformCulture.cs
- TagPrefixAttribute.cs
- ModelService.cs
- WeakEventTable.cs
- UpDownBase.cs
- DependencyObjectPropertyDescriptor.cs
- DBCSCodePageEncoding.cs
- LogPolicy.cs
- SessionStateSection.cs
- RegionIterator.cs
- ArrayWithOffset.cs
- SchemaInfo.cs
- PropertyExpression.cs
- TreeNodeCollectionEditor.cs
- safelinkcollection.cs
- CalendarButton.cs
- DynamicMethod.cs
- ConfigXmlDocument.cs
- QualifiedCellIdBoolean.cs