Leadtools.Annotations Namespace : AnnPrinter Class |
public class AnnPrinter : Leadtools.WinForms.RasterImagePrinter
'Declaration Public Class AnnPrinter Inherits Leadtools.WinForms.RasterImagePrinter
'Usage Dim instance As AnnPrinter
public sealed class AnnPrinter : Leadtools.WinForms.RasterImagePrinter
function Leadtools.Annotations.AnnPrinter()
public ref class AnnPrinter : public Leadtools.WinForms.RasterImagePrinter
The AnnPrinter class derives from Leadtools.WinForms.RasterImagePrinter to make the process of printing an AnnContainer on top of an Leadtools.RasterImage easier.
Printing using the .NET framework involves adding a handler to the System.Drawing.Printing.PrintDocument.PrintPage event. In that event handler, you set up a new instance of the AnnPrinter class, set up its properties as desired, and then call the Print(RasterImage,Int32,AnnContainer,PrintPageEventArgs) method passing it the Leadtools.RasterImage to print, the image page number, the AnnContainer containing the annotation objects to be printed and the System.Drawing.Printing.PrintPageEventArgs object obtained through your System.Drawing.Printing.PrintPageEventHandler.
Private myImage As RasterImage Private myContainer As AnnContainer Private Sub AnnPrinter_AnnPrinter() ' load an image Dim codecs As RasterCodecs = New RasterCodecs() myImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Sample1.cmp")) ' create a new container and add a few objects myContainer = New AnnContainer() myContainer.Bounds = New AnnRectangle(0, 0, myImage.Width, myImage.Height) Dim lineObj As AnnLineObject = New AnnLineObject() lineObj.StartPoint = New AnnPoint(100, 100, AnnUnit.Pixel) lineObj.EndPoint = New AnnPoint(200, 300, AnnUnit.Pixel) lineObj.Pen = New AnnPen(Color.Red, New AnnLength(4, AnnUnit.Pixel)) myContainer.Objects.Add(lineObj) Dim rectObj As AnnRectangleObject = New AnnRectangleObject() rectObj.Bounds = New AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel) rectObj.Pen = New AnnPen(Color.Blue, New AnnLength(1, AnnUnit.Pixel)) rectObj.Brush = New AnnSolidBrush(Color.Yellow) myContainer.Objects.Add(rectObj) ' intitialize a new PrintDocument object If Not PrinterSettings.InstalledPrinters Is Nothing AndAlso PrinterSettings.InstalledPrinters.Count > 0 Then Dim printDocument As PrintDocument = New PrintDocument() AddHandler printDocument.PrintPage, AddressOf PrintDocument_PrintPage printDocument.Print() End If ' dispose the image myImage.Dispose() End Sub Private Sub PrintDocument_PrintPage(ByVal sender As Object, ByVal e As PrintPageEventArgs) Dim printer As AnnPrinter = New AnnPrinter() ' We want normal size (not zoomed) but centered printer.SizeMode = RasterPaintSizeMode.Fit printer.HorizontalAlignMode = RasterPaintAlignMode.Center printer.VerticalAlignMode = RasterPaintAlignMode.Center ' print the whole image printer.ImageRectangle = Rectangle.Empty ' use maximum page printer.PageRectangle = RectangleF.Empty ' Win32 GDI printing and scale to gray Dim props As RasterPaintProperties = RasterPaintProperties.Default props.PaintEngine = RasterPaintEngine.Gdi props.PaintDisplayMode = props.PaintDisplayMode Or RasterPaintDisplayModeFlags.ScaleToGray printer.PaintProperties = props printer.Print(myImage, myImage.Page, myContainer, e) End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class
RasterImage myImage; AnnContainer myContainer; private void AnnPrinter_AnnPrinter() { // load an image RasterCodecs codecs = new RasterCodecs(); string fileName = Path.Combine(LEAD_VARS.ImagesDir, "Sample1.cmp"); myImage = codecs.Load(fileName); // create a new container and add a few objects myContainer = new AnnContainer(); myContainer.Bounds = new AnnRectangle(0, 0, myImage.Width, myImage.Height); AnnLineObject lineObj = new AnnLineObject(); lineObj.StartPoint = new AnnPoint(100, 100, AnnUnit.Pixel); lineObj.EndPoint = new AnnPoint(200, 300, AnnUnit.Pixel); lineObj.Pen = new AnnPen(Color.Red, new AnnLength(4, AnnUnit.Pixel)); myContainer.Objects.Add(lineObj); AnnRectangleObject rectObj = new AnnRectangleObject(); rectObj.Bounds = new AnnRectangle(100, 100, 100, 100, AnnUnit.Pixel); rectObj.Pen = new AnnPen(Color.Blue, new AnnLength(1, AnnUnit.Pixel)); rectObj.Brush = new AnnSolidBrush(Color.Yellow); myContainer.Objects.Add(rectObj); // intitialize a new PrintDocument object if(PrinterSettings.InstalledPrinters != null && PrinterSettings.InstalledPrinters.Count > 0) { PrintDocument printDocument = new PrintDocument(); printDocument.PrintPage += new PrintPageEventHandler(PrintDocument_PrintPage); printDocument.Print(); } // dispose the image myImage.Dispose(); } private void PrintDocument_PrintPage(object sender, PrintPageEventArgs e) { AnnPrinter printer = new AnnPrinter(); // We want normal size (not zoomed) but centered printer.SizeMode = RasterPaintSizeMode.Fit; printer.HorizontalAlignMode = RasterPaintAlignMode.Center; printer.VerticalAlignMode = RasterPaintAlignMode.Center; // print the whole image printer.ImageRectangle = Rectangle.Empty; // use maximum page printer.PageRectangle = RectangleF.Empty; // Win32 GDI printing and scale to gray RasterPaintProperties props = RasterPaintProperties.Default; props.PaintEngine = RasterPaintEngine.Gdi; props.PaintDisplayMode |= RasterPaintDisplayModeFlags.ScaleToGray; printer.PaintProperties = props; printer.Print(myImage, myImage.Page, myContainer,e); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; }
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2