Code:
/ Net / Net / 3.5.50727.3053 / DEVDIV / depot / DevDiv / releases / Orcas / SP / wpf / src / Core / CSharp / System / Windows / Media / Imaging / PngBitmapEncoder.cs / 1 / PngBitmapEncoder.cs
//------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, All Rights Reserved // // File: PngBitmapEncoder.cs // //----------------------------------------------------------------------------- using System; using System.Security; using System.Security.Permissions; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using MS.Win32.PresentationCore; using System.Diagnostics; using System.Windows.Media; using System.Globalization; using System.Runtime.InteropServices; namespace System.Windows.Media.Imaging { #region PngInterlaceOption ////// Possibile options for the interlaced setting. /// public enum PngInterlaceOption : int { ////// Let the encoder decide what is best. /// Default = 0, ////// Save as an interlaced bitmap. /// On = 1, ////// Do not save as an interlaced bitmap. /// Off = 2, } #endregion #region PngBitmapEncoder ////// Built-in Encoder for Png files. /// public sealed class PngBitmapEncoder : BitmapEncoder { #region Constructors ////// Constructor for PngBitmapEncoder /// ////// Critical - will eventually create unmanaged resources /// PublicOK - all inputs are verified /// [SecurityCritical ] public PngBitmapEncoder() : base(true) { _supportsPreview = false; _supportsGlobalThumbnail = false; _supportsGlobalMetadata = false; _supportsFrameThumbnails = false; _supportsMultipleFrames = false; _supportsFrameMetadata = true; } #endregion #region Public Properties ////// Encode this bitmap as interlaced. /// public PngInterlaceOption Interlace { get { return _interlaceOption; } set { _interlaceOption = value; } } #endregion #region Internal Properties / Methods ////// Returns the container format for this encoder /// ////// Critical - uses guid to create unmanaged resources /// internal override Guid ContainerFormat { [SecurityCritical] get { return _containerFormat; } } ////// Setups the encoder and other properties before encoding each frame /// ////// Critical - calls Critical Initialize() /// [SecurityCritical] internal override void SetupFrame(SafeMILHandle frameEncodeHandle, SafeMILHandle encoderOptions) { PROPBAG2 propBag = new PROPBAG2(); PROPVARIANT propValue = new PROPVARIANT(); // There is only one encoder option supported here: if (_interlaceOption != c_defaultInterlaceOption) { try { propBag.Init("InterlaceOption"); propValue.Init(_interlaceOption == PngInterlaceOption.On); HRESULT.Check(UnsafeNativeMethods.IPropertyBag2.Write( encoderOptions, 1, ref propBag, ref propValue)); } finally { propBag.Clear(); propValue.Clear(); } } HRESULT.Check(UnsafeNativeMethods.WICBitmapFrameEncode.Initialize( frameEncodeHandle, encoderOptions )); } #endregion #region Internal Abstract /// Need to implement this to derive from the "sealed" object internal override void SealObject() { throw new NotImplementedException(); } #endregion #region Data Members ////// Critical - CLSID used for creation of critical resources /// [SecurityCritical] private Guid _containerFormat = MILGuidData.GUID_ContainerFormatPng; private const PngInterlaceOption c_defaultInterlaceOption = PngInterlaceOption.Default; private PngInterlaceOption _interlaceOption = c_defaultInterlaceOption; #endregion } #endregion // PngBitmapEncoder } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. // Copyright (c) Microsoft Corporation. All rights reserved. //------------------------------------------------------------------------------ // Microsoft Avalon // Copyright (c) Microsoft Corporation, All Rights Reserved // // File: PngBitmapEncoder.cs // //----------------------------------------------------------------------------- using System; using System.Security; using System.Security.Permissions; using System.Collections; using System.ComponentModel; using System.ComponentModel.Design.Serialization; using System.Reflection; using MS.Internal; using MS.Win32.PresentationCore; using System.Diagnostics; using System.Windows.Media; using System.Globalization; using System.Runtime.InteropServices; namespace System.Windows.Media.Imaging { #region PngInterlaceOption ////// Possibile options for the interlaced setting. /// public enum PngInterlaceOption : int { ////// Let the encoder decide what is best. /// Default = 0, ////// Save as an interlaced bitmap. /// On = 1, ////// Do not save as an interlaced bitmap. /// Off = 2, } #endregion #region PngBitmapEncoder ////// Built-in Encoder for Png files. /// public sealed class PngBitmapEncoder : BitmapEncoder { #region Constructors ////// Constructor for PngBitmapEncoder /// ////// Critical - will eventually create unmanaged resources /// PublicOK - all inputs are verified /// [SecurityCritical ] public PngBitmapEncoder() : base(true) { _supportsPreview = false; _supportsGlobalThumbnail = false; _supportsGlobalMetadata = false; _supportsFrameThumbnails = false; _supportsMultipleFrames = false; _supportsFrameMetadata = true; } #endregion #region Public Properties ////// Encode this bitmap as interlaced. /// public PngInterlaceOption Interlace { get { return _interlaceOption; } set { _interlaceOption = value; } } #endregion #region Internal Properties / Methods ////// Returns the container format for this encoder /// ////// Critical - uses guid to create unmanaged resources /// internal override Guid ContainerFormat { [SecurityCritical] get { return _containerFormat; } } ////// Setups the encoder and other properties before encoding each frame /// ////// Critical - calls Critical Initialize() /// [SecurityCritical] internal override void SetupFrame(SafeMILHandle frameEncodeHandle, SafeMILHandle encoderOptions) { PROPBAG2 propBag = new PROPBAG2(); PROPVARIANT propValue = new PROPVARIANT(); // There is only one encoder option supported here: if (_interlaceOption != c_defaultInterlaceOption) { try { propBag.Init("InterlaceOption"); propValue.Init(_interlaceOption == PngInterlaceOption.On); HRESULT.Check(UnsafeNativeMethods.IPropertyBag2.Write( encoderOptions, 1, ref propBag, ref propValue)); } finally { propBag.Clear(); propValue.Clear(); } } HRESULT.Check(UnsafeNativeMethods.WICBitmapFrameEncode.Initialize( frameEncodeHandle, encoderOptions )); } #endregion #region Internal Abstract /// Need to implement this to derive from the "sealed" object internal override void SealObject() { throw new NotImplementedException(); } #endregion #region Data Members ////// Critical - CLSID used for creation of critical resources /// [SecurityCritical] private Guid _containerFormat = MILGuidData.GUID_ContainerFormatPng; private const PngInterlaceOption c_defaultInterlaceOption = PngInterlaceOption.Default; private PngInterlaceOption _interlaceOption = c_defaultInterlaceOption; #endregion } #endregion // PngBitmapEncoder } // 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
- WindowsComboBox.cs
- WindowsTreeView.cs
- PKCS1MaskGenerationMethod.cs
- OleDbRowUpdatingEvent.cs
- SrgsRule.cs
- UInt32.cs
- GridViewPageEventArgs.cs
- ThreadExceptionDialog.cs
- QilScopedVisitor.cs
- LineGeometry.cs
- DataGridColumn.cs
- BoundsDrawingContextWalker.cs
- StickyNoteContentControl.cs
- KeyboardNavigation.cs
- SqlCacheDependencyDatabase.cs
- XMLSchema.cs
- XmlCharCheckingWriter.cs
- QueryOutputWriter.cs
- WebBrowserNavigatingEventHandler.cs
- XmlFormatExtensionPrefixAttribute.cs
- DataGridViewAutoSizeColumnsModeEventArgs.cs
- FunctionDetailsReader.cs
- BufferedWebEventProvider.cs
- DataControlImageButton.cs
- IsolationInterop.cs
- DataFormats.cs
- SecurityTokenRequirement.cs
- TargetException.cs
- HtmlInputControl.cs
- streamingZipPartStream.cs
- SqlMetaData.cs
- ExpressionBuilder.cs
- TabletCollection.cs
- ScriptRef.cs
- RadioButton.cs
- ViewCellSlot.cs
- DeadCharTextComposition.cs
- MexBindingElement.cs
- CornerRadius.cs
- ArrayTypeMismatchException.cs
- httpserverutility.cs
- SettingsBase.cs
- Matrix.cs
- ObservableCollection.cs
- WebPartVerbCollection.cs
- SimplePropertyEntry.cs
- WinFormsUtils.cs
- WorkflowMessageEventArgs.cs
- SendActivityDesigner.cs
- HttpConfigurationContext.cs
- EntitySetBaseCollection.cs
- SQLDecimal.cs
- Geometry.cs
- GridViewUpdatedEventArgs.cs
- DropSource.cs
- DataChangedEventManager.cs
- CatalogZone.cs
- SafeFileMapViewHandle.cs
- NumberFunctions.cs
- DataRecordInternal.cs
- SHA1.cs
- TypeDescriptionProvider.cs
- PhysicalFontFamily.cs
- SparseMemoryStream.cs
- DefinitionUpdate.cs
- SessionParameter.cs
- Transform3D.cs
- ActiveXSite.cs
- safex509handles.cs
- NamespaceQuery.cs
- BinaryFormatterWriter.cs
- DataReaderContainer.cs
- InheritedPropertyDescriptor.cs
- TextRangeSerialization.cs
- TextLineResult.cs
- PlaceHolder.cs
- JavaScriptSerializer.cs
- WebBrowserDocumentCompletedEventHandler.cs
- Rules.cs
- NonParentingControl.cs
- Block.cs
- SQLBinaryStorage.cs
- RenderDataDrawingContext.cs
- HorizontalAlignConverter.cs
- EntityDesignerDataSourceView.cs
- CustomAttribute.cs
- RelationshipFixer.cs
- _PooledStream.cs
- PolygonHotSpot.cs
- Emitter.cs
- ObjectHandle.cs
- TypefaceCollection.cs
- ForEach.cs
- TreeNodeCollectionEditor.cs
- UserPersonalizationStateInfo.cs
- PropertyGroupDescription.cs
- XPathEmptyIterator.cs
- SaveFileDialog.cs
- SchemaImporterExtension.cs
- CheckBoxStandardAdapter.cs