←Select platform

AnnPrinter Class

Summary

Supports printing of an Leadtools.RasterImage and a AnnContainer.

Syntax

C++

public class AnnPrinter : RasterImagePrinter

  
Public Class AnnPrinter  
   Inherits Leadtools.Winforms.Leadtools.WinForms.RasterImagePrinter

public ref class AnnPrinter : public Leadtools.Winforms.Leadtools.WinForms.RasterImagePrinter

Remarks

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.

Example

This example loads an image, creates annotations, and prints.

using Leadtools; 
using Leadtools.Annotations; 
using Leadtools.Codecs; 
using Leadtools.WinForms; 
using Leadtools.Drawing; 
 
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"; 
}

Imports Leadtools 
Imports Leadtools.Annotations 
Imports Leadtools.Codecs 
Imports Leadtools.WinForms 
Imports Leadtools.Drawing 
 
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

Requirements

Target Platforms

Reference

AnnPrinter Members

Leadtools.Annotations Namespace

Help Version 19.0.2017.10.27

Leadtools.Annotations Assembly

Introduction

Getting Started

Namespaces

Leadtools.Annotations Namespace

Assemblies