Code:
/ Dotnetfx_Win7_3.5.1 / Dotnetfx_Win7_3.5.1 / 3.5.1 / DEVDIV / depot / DevDiv / releases / whidbey / NetFXspW7 / ndp / fx / src / CommonUI / System / Drawing / Printing / DefaultPrintController.cs / 1 / DefaultPrintController.cs
//------------------------------------------------------------------------------ //// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Drawing.Printing { using Microsoft.Win32; using System.ComponentModel; using System; using System.Diagnostics; using System.Drawing; using System.Drawing.Internal; using System.Runtime.InteropServices; using CodeAccessPermission = System.Security.CodeAccessPermission; ////// /// public class StandardPrintController : PrintController { private DeviceContext dc; private Graphics graphics; private void CheckSecurity(PrintDocument document) { if (document.PrinterSettings.PrintDialogDisplayed) { IntSecurity.SafePrinting.Demand(); } else if (document.PrinterSettings.IsDefaultPrinter) { IntSecurity.DefaultPrinting.Demand(); } else { IntSecurity.AllPrinting.Demand(); } } ///Specifies a print controller that sends information to a printer. /// ////// /// public override void OnStartPrint(PrintDocument document, PrintEventArgs e) { Debug.Assert(dc == null && graphics == null, "PrintController methods called in the wrong order?"); // For security purposes, don't assume our public methods methods are called in any particular order CheckSecurity(document); base.OnStartPrint(document, e); // the win32 methods below SuppressUnmanagedCodeAttributes so assertin on UnmanagedCodePermission is redundant if (!document.PrinterSettings.IsValid) throw new InvalidPrinterException(document.PrinterSettings); dc = document.PrinterSettings.CreateDeviceContext(modeHandle); SafeNativeMethods.DOCINFO info = new SafeNativeMethods.DOCINFO(); info.lpszDocName = document.DocumentName; if (document.PrinterSettings.PrintToFile) info.lpszOutput = document.PrinterSettings.OutputPort; //This will be "FILE:" else info.lpszOutput = null; info.lpszDatatype = null; info.fwType = 0; int result = SafeNativeMethods.StartDoc(new HandleRef(this.dc, dc.Hdc), info); if (result <= 0) { int error = Marshal.GetLastWin32Error(); if (error == SafeNativeMethods.ERROR_CANCELLED) { e.Cancel = true; } else { throw new Win32Exception(error); } } } ////// Implements StartPrint for printing to a physical printer. /// ////// /// public override Graphics OnStartPage(PrintDocument document, PrintPageEventArgs e) { Debug.Assert(dc != null && graphics == null, "PrintController methods called in the wrong order?"); // For security purposes, don't assume our public methods methods are called in any particular order CheckSecurity(document); base.OnStartPage(document, e); try { IntSecurity.AllPrintingAndUnmanagedCode.Assert(); e.PageSettings.CopyToHdevmode(modeHandle); IntPtr modePointer = SafeNativeMethods.GlobalLock(new HandleRef(this, modeHandle)); try { IntPtr result = SafeNativeMethods.ResetDC(new HandleRef(this.dc, dc.Hdc), new HandleRef(null, modePointer)); Debug.Assert(result == dc.Hdc, "ResetDC didn't return the same handle I gave it"); } finally { SafeNativeMethods.GlobalUnlock(new HandleRef(this, modeHandle)); } } finally { CodeAccessPermission.RevertAssert(); } // int horizontalResolution = Windows.GetDeviceCaps(dc.Hdc, SafeNativeMethods.HORZRES); // int verticalResolution = Windows.GetDeviceCaps(dc.Hdc, SafeNativeMethods.VERTRES); graphics = Graphics.FromHdcInternal( dc.Hdc ); if (graphics != null && document.OriginAtMargins) { // Adjust the origin of the graphics object to be at the // user-specified margin location // int dpiX = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(this.dc, dc.Hdc), SafeNativeMethods.LOGPIXELSX); int dpiY = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(this.dc, dc.Hdc), SafeNativeMethods.LOGPIXELSY); int hardMarginX_DU = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(this.dc, dc.Hdc), SafeNativeMethods.PHYSICALOFFSETX); int hardMarginY_DU = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(this.dc, dc.Hdc), SafeNativeMethods.PHYSICALOFFSETY); float hardMarginX = hardMarginX_DU * 100 / dpiX; float hardMarginY = hardMarginY_DU * 100 / dpiY; graphics.TranslateTransform(-hardMarginX, -hardMarginY); graphics.TranslateTransform(document.DefaultPageSettings.Margins.Left, document.DefaultPageSettings.Margins.Top); } int result2 = SafeNativeMethods.StartPage(new HandleRef(this.dc, dc.Hdc)); if (result2 <= 0) throw new Win32Exception(); return graphics; } ////// Implements StartPage for printing to a physical printer. /// ////// /// public override void OnEndPage(PrintDocument document, PrintPageEventArgs e) { Debug.Assert(dc != null && graphics != null, "PrintController methods called in the wrong order?"); // For security purposes, don't assume our public methods methods are called in any particular order CheckSecurity(document); IntSecurity.UnmanagedCode.Assert(); try { int result = SafeNativeMethods.EndPage(new HandleRef(this.dc, dc.Hdc)); if (result <= 0) throw new Win32Exception(); } finally { CodeAccessPermission.RevertAssert(); graphics.Dispose(); // Dispose of GDI+ Graphics; keep the DC graphics = null; } base.OnEndPage(document, e); } ////// Implements EndPage for printing to a physical printer. /// ////// /// public override void OnEndPrint(PrintDocument document, PrintEventArgs e) { Debug.Assert(dc != null && graphics == null, "PrintController methods called in the wrong order?"); // For security purposes, don't assume our public methods methods are called in any particular order CheckSecurity(document); IntSecurity.UnmanagedCode.Assert(); try { if (dc != null) { try { int result = (e.Cancel) ? SafeNativeMethods.AbortDoc(new HandleRef(dc, dc.Hdc)) : SafeNativeMethods.EndDoc(new HandleRef(dc, dc.Hdc)); if (result <= 0) throw new Win32Exception(); } finally { dc.Dispose(); dc = null; } } } finally { CodeAccessPermission.RevertAssert(); } base.OnEndPrint(document, e); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007. //------------------------------------------------------------------------------ ///// Implements EndPrint for printing to a physical printer. /// ///// Copyright (c) Microsoft Corporation. All rights reserved. // //----------------------------------------------------------------------------- namespace System.Drawing.Printing { using Microsoft.Win32; using System.ComponentModel; using System; using System.Diagnostics; using System.Drawing; using System.Drawing.Internal; using System.Runtime.InteropServices; using CodeAccessPermission = System.Security.CodeAccessPermission; ////// /// public class StandardPrintController : PrintController { private DeviceContext dc; private Graphics graphics; private void CheckSecurity(PrintDocument document) { if (document.PrinterSettings.PrintDialogDisplayed) { IntSecurity.SafePrinting.Demand(); } else if (document.PrinterSettings.IsDefaultPrinter) { IntSecurity.DefaultPrinting.Demand(); } else { IntSecurity.AllPrinting.Demand(); } } ///Specifies a print controller that sends information to a printer. /// ////// /// public override void OnStartPrint(PrintDocument document, PrintEventArgs e) { Debug.Assert(dc == null && graphics == null, "PrintController methods called in the wrong order?"); // For security purposes, don't assume our public methods methods are called in any particular order CheckSecurity(document); base.OnStartPrint(document, e); // the win32 methods below SuppressUnmanagedCodeAttributes so assertin on UnmanagedCodePermission is redundant if (!document.PrinterSettings.IsValid) throw new InvalidPrinterException(document.PrinterSettings); dc = document.PrinterSettings.CreateDeviceContext(modeHandle); SafeNativeMethods.DOCINFO info = new SafeNativeMethods.DOCINFO(); info.lpszDocName = document.DocumentName; if (document.PrinterSettings.PrintToFile) info.lpszOutput = document.PrinterSettings.OutputPort; //This will be "FILE:" else info.lpszOutput = null; info.lpszDatatype = null; info.fwType = 0; int result = SafeNativeMethods.StartDoc(new HandleRef(this.dc, dc.Hdc), info); if (result <= 0) { int error = Marshal.GetLastWin32Error(); if (error == SafeNativeMethods.ERROR_CANCELLED) { e.Cancel = true; } else { throw new Win32Exception(error); } } } ////// Implements StartPrint for printing to a physical printer. /// ////// /// public override Graphics OnStartPage(PrintDocument document, PrintPageEventArgs e) { Debug.Assert(dc != null && graphics == null, "PrintController methods called in the wrong order?"); // For security purposes, don't assume our public methods methods are called in any particular order CheckSecurity(document); base.OnStartPage(document, e); try { IntSecurity.AllPrintingAndUnmanagedCode.Assert(); e.PageSettings.CopyToHdevmode(modeHandle); IntPtr modePointer = SafeNativeMethods.GlobalLock(new HandleRef(this, modeHandle)); try { IntPtr result = SafeNativeMethods.ResetDC(new HandleRef(this.dc, dc.Hdc), new HandleRef(null, modePointer)); Debug.Assert(result == dc.Hdc, "ResetDC didn't return the same handle I gave it"); } finally { SafeNativeMethods.GlobalUnlock(new HandleRef(this, modeHandle)); } } finally { CodeAccessPermission.RevertAssert(); } // int horizontalResolution = Windows.GetDeviceCaps(dc.Hdc, SafeNativeMethods.HORZRES); // int verticalResolution = Windows.GetDeviceCaps(dc.Hdc, SafeNativeMethods.VERTRES); graphics = Graphics.FromHdcInternal( dc.Hdc ); if (graphics != null && document.OriginAtMargins) { // Adjust the origin of the graphics object to be at the // user-specified margin location // int dpiX = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(this.dc, dc.Hdc), SafeNativeMethods.LOGPIXELSX); int dpiY = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(this.dc, dc.Hdc), SafeNativeMethods.LOGPIXELSY); int hardMarginX_DU = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(this.dc, dc.Hdc), SafeNativeMethods.PHYSICALOFFSETX); int hardMarginY_DU = UnsafeNativeMethods.GetDeviceCaps(new HandleRef(this.dc, dc.Hdc), SafeNativeMethods.PHYSICALOFFSETY); float hardMarginX = hardMarginX_DU * 100 / dpiX; float hardMarginY = hardMarginY_DU * 100 / dpiY; graphics.TranslateTransform(-hardMarginX, -hardMarginY); graphics.TranslateTransform(document.DefaultPageSettings.Margins.Left, document.DefaultPageSettings.Margins.Top); } int result2 = SafeNativeMethods.StartPage(new HandleRef(this.dc, dc.Hdc)); if (result2 <= 0) throw new Win32Exception(); return graphics; } ////// Implements StartPage for printing to a physical printer. /// ////// /// public override void OnEndPage(PrintDocument document, PrintPageEventArgs e) { Debug.Assert(dc != null && graphics != null, "PrintController methods called in the wrong order?"); // For security purposes, don't assume our public methods methods are called in any particular order CheckSecurity(document); IntSecurity.UnmanagedCode.Assert(); try { int result = SafeNativeMethods.EndPage(new HandleRef(this.dc, dc.Hdc)); if (result <= 0) throw new Win32Exception(); } finally { CodeAccessPermission.RevertAssert(); graphics.Dispose(); // Dispose of GDI+ Graphics; keep the DC graphics = null; } base.OnEndPage(document, e); } ////// Implements EndPage for printing to a physical printer. /// ////// /// public override void OnEndPrint(PrintDocument document, PrintEventArgs e) { Debug.Assert(dc != null && graphics == null, "PrintController methods called in the wrong order?"); // For security purposes, don't assume our public methods methods are called in any particular order CheckSecurity(document); IntSecurity.UnmanagedCode.Assert(); try { if (dc != null) { try { int result = (e.Cancel) ? SafeNativeMethods.AbortDoc(new HandleRef(dc, dc.Hdc)) : SafeNativeMethods.EndDoc(new HandleRef(dc, dc.Hdc)); if (result <= 0) throw new Win32Exception(); } finally { dc.Dispose(); dc = null; } } } finally { CodeAccessPermission.RevertAssert(); } base.OnEndPrint(document, e); } } } // File provided for Reference Use Only by Microsoft Corporation (c) 2007./// Implements EndPrint for printing to a physical printer. /// ///
Link Menu
This book is available now!
Buy at Amazon US or
Buy at Amazon UK
- PaginationProgressEventArgs.cs
- EditorPartCollection.cs
- FlowDocumentPage.cs
- QuaternionAnimationUsingKeyFrames.cs
- TemplateParser.cs
- ToolStrip.cs
- XmlReaderSettings.cs
- SystemPens.cs
- QuestionEventArgs.cs
- RegexParser.cs
- WebZone.cs
- XmlReflectionMember.cs
- XamlSerializerUtil.cs
- ConsumerConnectionPointCollection.cs
- DbParameterHelper.cs
- InheritedPropertyChangedEventArgs.cs
- ImageListUtils.cs
- StorageEntityContainerMapping.cs
- SignHashRequest.cs
- ClassHandlersStore.cs
- SoapInteropTypes.cs
- ZipIOExtraFieldPaddingElement.cs
- LiteralLink.cs
- RewritingProcessor.cs
- Bold.cs
- AnnotationMap.cs
- SettingsPropertyValue.cs
- GuidelineCollection.cs
- Nodes.cs
- QueryOutputWriter.cs
- TypeSemantics.cs
- HTTPNotFoundHandler.cs
- TreeView.cs
- OleDbDataAdapter.cs
- __FastResourceComparer.cs
- ExpressionConverter.cs
- SymmetricAlgorithm.cs
- DataListCommandEventArgs.cs
- smtppermission.cs
- TemplateControlCodeDomTreeGenerator.cs
- Propagator.JoinPropagator.JoinPredicateVisitor.cs
- KeyConverter.cs
- PartialToken.cs
- ObjectDataSourceDisposingEventArgs.cs
- DelayLoadType.cs
- XmlSigningNodeWriter.cs
- HitTestWithPointDrawingContextWalker.cs
- SaveFileDialog.cs
- WindowPattern.cs
- TypeLibConverter.cs
- SchemaMapping.cs
- ServiceNotStartedException.cs
- ActivityCodeDomReferenceService.cs
- DrawingCollection.cs
- WebPartEditorCancelVerb.cs
- XPathNodeList.cs
- XmlSchemaAnyAttribute.cs
- SchemaComplexType.cs
- NamedObject.cs
- SqlTriggerContext.cs
- EventManager.cs
- RawStylusInputReport.cs
- GlyphRunDrawing.cs
- UpdateExpressionVisitor.cs
- UnitControl.cs
- ApplicationId.cs
- GradientStopCollection.cs
- ReflectionUtil.cs
- MDIControlStrip.cs
- FloaterBaseParagraph.cs
- StorageConditionPropertyMapping.cs
- JulianCalendar.cs
- DbProviderFactory.cs
- ErrorFormatter.cs
- Queue.cs
- RotateTransform.cs
- DefaultDiscoveryServiceExtension.cs
- Point3DConverter.cs
- StringCollection.cs
- InstanceData.cs
- CodeLabeledStatement.cs
- XmlSchemaSet.cs
- ObjectViewListener.cs
- brushes.cs
- SqlErrorCollection.cs
- EntityParameter.cs
- TargetException.cs
- recordstate.cs
- MD5.cs
- MaskedTextBox.cs
- IISUnsafeMethods.cs
- LicenseProviderAttribute.cs
- SmiContext.cs
- InputScopeNameConverter.cs
- TextEditorMouse.cs
- SelectedDatesCollection.cs
- TrustSection.cs
- ToolStripRenderer.cs
- HtmlInputHidden.cs
- PlainXmlWriter.cs