LEADTOOLS(Leadtoolsアセンブリ)

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RasterImagePagesChangedEventArgsクラス








メンバ 
データをPagesChangedイベントに提供します。
オブジェクトモデル
構文
public class RasterImagePagesChangedEventArgs : System.EventArgs 
'Declaration
 
Public Class RasterImagePagesChangedEventArgs 
   Inherits System.EventArgs
'Usage
 
Dim instance As RasterImagePagesChangedEventArgs
public sealed class RasterImagePagesChangedEventArgs : ~Remove~ 
function Leadtools.RasterImagePagesChangedEventArgs()
public ref class RasterImagePagesChangedEventArgs : public System.EventArgs 
解説

イメージがRasterImageオブジェクトから追加されて/挿入されるか、削除されるとき、RasterImage.PagesChangedイベントはRasterImagePagesChangedEventArgsクラスのインスタンスで発生します。このインスタンスは、どんなページが変更されたかに関する情報を格納します。以下のテーブルは、RasterImage.PagesChangedイベントと予想だけの値を呼び出すメソッドをリストします。

メソッド 期待される値
RasterImage.AddPage

ソースimage(画像パラメータ)のために:アクションRasterImagePagesChangedAction.Removedです、StartIndexは現在のページ(RasterImage.Page)です、そして、カウントは1です。

デスティネーションimageが(この、または、視覚の基本的なimageでMe):アクションRasterImagePagesChangedAction.Addedです、ページが終わりに追加されるため、StartIndexRasterImage.PageCountです、そして、カウントは1です。

RasterImage.AddPages

ソースimage(画像パラメータ)のために:アクションRasterImagePagesChangedAction.Removedです、StartIndexstartIndexパラメーターの値です、そして、カウントカウントパラメータの値です。

デスティネーションimageが(この、または、視覚の基本的なimageでMe):アクションRasterImagePagesChangedAction.Addedです、ページが終わりに追加されるため、StartIndexRasterImage.PageCountです、そして、カウントカウントパラメータの値です。

RasterImage.RemovePageAt アクションRasterImagePagesChangedAction.Removedです、StartIndexpageIndexの値です、そして、カウントは1です。
RasterImage.RemovePages アクションRasterImagePagesChangedAction.Removedです、StartIndexstartIndexパラメーターの値です、そして、カウントカウントパラメータの値です。
RasterImage.RemoveAllPages アクションRasterImagePagesChangedAction.Removedです、StartIndexは1です、そして、カウントRasterImage.PageCountです。
RasterImage.InsertPageRasterImage.ReplacePages

ソースimage(画像パラメータ)のために:アクションRasterImagePagesChangedAction.Removedです、StartIndexは現在のページ(RasterImage.Page)です、そして、カウントは1です。

デスティネーションimageが(この、または、視覚の基本的なimageでMe):アクションRasterImagePagesChangedAction.Addedです、StartIndexインデックスパラメータの値です、そして、カウントは1です。

RasterImage.InsertPagesRasterImage.ReplacePages

ソースimage(画像パラメータ)のために:アクションRasterImagePagesChangedAction.Removedです、StartIndexstartIndexパラメーターの値です、そして、カウントカウントパラメータの値です。

デスティネーションimageが(この、または、視覚の基本的なimageでMe):アクションRasterImagePagesChangedAction.Addedです、StartIndexインデックスパラメータの値です、そして、カウントカウントパラメータの値です。

RasterImage.Dispose アクションRasterImagePagesChangedAction.Removedです、StartIndexは1です、そして、カウントは現在のRasterImageの頁数です。
サンプル
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Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Core
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.Controls
Imports Leadtools.Dicom
Imports Leadtools.Drawing
Imports Leadtools.Svg

      
Public Sub PagesChangedExample()
   Dim codecs As New RasterCodecs()
   codecs.Options.Load.AllPages = True
   Dim srcFileName1 As String = Path.Combine(LEAD_VARS.ImagesDir, "eye.gif")
   Dim srcFileName2 As String = Path.Combine(LEAD_VARS.ImagesDir, "image1.cmp")

   ' Load the multi-page image
   Dim srcImage As RasterImage = codecs.Load(srcFileName1)
   AddHandler srcImage.PagesChanged, AddressOf Image_PagesChanged

   ' Show the number of pages in this file
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Show and change the active page
   Console.WriteLine("Active page: {0}", srcImage.Page)
   srcImage.Page = 3
   Console.WriteLine("Active page: {0}", srcImage.Page)
   srcImage.Page = 1

   ' Load a single page image and add it to the end
   Dim pageImage As RasterImage = codecs.Load(srcFileName2)
   AddHandler pageImage.PagesChanged, AddressOf Image_PagesChanged
   Console.WriteLine("Adding a single page")
   srcImage.AddPage(pageImage)
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Load a multi page image and add a few pages to this image
   pageImage = codecs.Load(srcFileName1)
   AddHandler pageImage.PagesChanged, AddressOf Image_PagesChanged
   Console.WriteLine("Adding multi-pages")
   srcImage.AddPages(pageImage, 1, 2)
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Insert a page in the middle
   Console.WriteLine("Inserting a page")
   srcImage.InsertPage(4, pageImage)
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Insert the rest of the pages at the beginning
   Console.WriteLine("Inserting pages")
   srcImage.InsertPages(0, pageImage, 1, -1)
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Remove the first page
   Console.WriteLine("Removing a page")
   srcImage.RemovePageAt(1)
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Remove the last 3 pages
   Console.WriteLine("Removing pages")
   srcImage.RemovePages(srcImage.PageCount - 3, -1)
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Remove all the pages (leaves 1)
   Console.WriteLine("Removing all pages")
   srcImage.RemoveAllPages()
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   srcImage.Dispose()
   codecs.Dispose()
End Sub

Private Sub Image_PagesChanged(ByVal sender As Object, ByVal e As RasterImagePagesChangedEventArgs)
   Console.WriteLine("Added = {0}, Index = {1}, Count = {2}", e.Action, e.StartIndex, e.Count)
End Sub

Public NotInheritable Class LEAD_VARS
Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Core;
using Leadtools.ImageProcessing.Color;
using Leadtools.Dicom;
using Leadtools.Drawing;
using Leadtools.Controls;
using Leadtools.Svg;

      
public void PagesChangedExample()
{
   RasterCodecs codecs = new RasterCodecs();
   codecs.Options.Load.AllPages = true;
   string srcFileName1 = Path.Combine(ImagesPath.Path, "eye.gif");
   string srcFileName2 = Path.Combine(ImagesPath.Path,"image1.cmp");

   // Load the multi-page image
   RasterImage srcImage = codecs.Load(srcFileName1);
   srcImage.PagesChanged += new EventHandler<RasterImagePagesChangedEventArgs>(Image_PagesChanged);

   // Show the number of pages in this file
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Show and change the active page
   Console.WriteLine("Active page: {0}", srcImage.Page);
   srcImage.Page = 3;
   Console.WriteLine("Active page: {0}", srcImage.Page);
   srcImage.Page = 1;

   // Load a single page image and add it to the end
   RasterImage pageImage = codecs.Load(srcFileName2);
   pageImage.PagesChanged += new EventHandler<RasterImagePagesChangedEventArgs>(Image_PagesChanged);
   Console.WriteLine("Adding a single page");
   srcImage.AddPage(pageImage);
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Load a multi page image and add a few pages to this image
   pageImage = codecs.Load(srcFileName1);
   pageImage.PagesChanged += new EventHandler<RasterImagePagesChangedEventArgs>(Image_PagesChanged);
   Console.WriteLine("Adding multi-pages");
   srcImage.AddPages(pageImage, 1, 2);
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Insert a page in the middle
   Console.WriteLine("Inserting a page");
   srcImage.InsertPage(4, pageImage);
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Insert the rest of the pages at the beginning
   Console.WriteLine("Inserting pages");
   srcImage.InsertPages(0, pageImage, 1, -1);
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Remove the first page
   Console.WriteLine("Removing a page");
   srcImage.RemovePageAt(1);
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Remove the last 3 pages
   Console.WriteLine("Removing pages");
   srcImage.RemovePages(srcImage.PageCount - 3, -1);
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Remove all the pages (leaves 1)
   Console.WriteLine("Removing all pages");
   srcImage.RemoveAllPages();
   Console.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   srcImage.Dispose();
   codecs.Dispose();
}

void Image_PagesChanged(object sender, RasterImagePagesChangedEventArgs e)
{
   Console.WriteLine("Added = {0}, Index = {1}, Count = {2}", e.Action, e.StartIndex, e.Count);
}
RasterImageExamples.prototype.PagesChangedExample = function ( )
{
   Tools.SetLicense ( );
   with ( Leadtools ) {
      with ( Leadtools.Codecs ) {
      
         var codecs = new RasterCodecs();

         var srcFileName1 = "Assets\\eye.gif";
         var srcFileName2 = "Assets\\Image1.cmp";
         var srcImage;
         var pageImage;

         // Load the multi-page image
         return Tools.AppInstallFolder().getFileAsync(srcFileName1).then (function ( loadFile  ) {
      
            return codecs.loadAsync(LeadStreamFactory.create(loadFile))}).then ( function ( img ) {
               srcImage = img ;
               srcImage.addEventListener("pageschanged", Image_PagesChanged);

               // Show the number of pages in this file
               console.info("Pages in the image: ", srcImage.pageCount);

               // Show and change the active page
               console.info("Active page: ", srcImage.page);
               srcImage.page = 3;
               console.info("Active page: ", srcImage.page);
               srcImage.page = 1;

               // Load a single page image and add it to the end
               return Tools.AppInstallFolder().getFileAsync(srcFileName2)})
         .then ( function ( loadFile ) {
            return codecs.loadAsync(LeadStreamFactory.create(loadFile))})
         .then ( function ( pgImg ) {
            pageImage = pgImg;

            pageImage.addEventListener("pageschanged", Image_PagesChanged);
            console.info("Adding a single page");
            srcImage.addPage(pageImage);
            console.info("Pages in the image: ", srcImage.pageCount);

            // Load a multi page image and add a few pages to this image
            return Tools.AppInstallFolder().getFileAsync(srcFileName1)})
         .then ( function ( loadFile ) {
            return codecs.loadAsync(LeadStreamFactory.create(loadFile))})
         .then ( function ( pgImg ) {
            pageImage = pgImg ;

            pageImage.addEventListener("pageschanged", Image_PagesChanged);
            console.info("Adding multi-pages");
            srcImage.addPages(pageImage, 1, 2);
            console.info("Pages in the image: ", srcImage.pageCount);

            // Insert a page in the middle
            console.info("Inserting a page");
            srcImage.insertPage(4, pageImage);
            console.info("Pages in the image: ", srcImage.pageCount);

            // Insert the rest of the pages at the beginning
            console.info("Inserting pages");
            srcImage.insertPages(0, pageImage, 1, -1);
            console.info("Pages in the image: ", srcImage.pageCount);

            // Remove the first page
            console.info("Removing a page");
            srcImage.removePageAt(1);
            console.info("Pages in the image: ", srcImage.pageCount);

            // Remove the last 3 pages
            console.info("Removing pages");
            srcImage.removePages(srcImage.pageCount - 3, -1);
            console.info("Pages in the image: ", srcImage.pageCount);

            // Remove all the pages (leaves 1)
            console.info("Removing all pages");
            srcImage.removeAllPages();
            console.info("Pages in the image: ", srcImage.pageCount);

            pageImage.close();
            srcImage.close();
            codecs.close();});
      }
   }
}

function Image_PagesChanged( e)
{
   console.info("Added = " + e.action + ", Index = " + e.startIndex +", Count = " + e.count);
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Core;
using Leadtools.ImageProcessing.Color;
using Leadtools.Dicom;

      
public async Task PagesChangedExample()
{
   RasterCodecs codecs = new RasterCodecs();
   string srcFileName1 = @"Assets\eye.gif";
   string srcFileName2 = @"Assets\Image1.cmp";

   // Load the multi-page image
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName1);
   RasterImage srcImage = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));
   srcImage.PagesChanged += new EventHandler<RasterImagePagesChangedEventArgs>(Image_PagesChanged);

   // Show the number of pages in this file
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Show and change the active page
   Debug.WriteLine("Active page: {0}", srcImage.Page);
   srcImage.Page = 3;
   Debug.WriteLine("Active page: {0}", srcImage.Page);
   srcImage.Page = 1;

   // Load a single page image and add it to the end
   loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName2);
   RasterImage pageImage = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));

   pageImage.PagesChanged += new EventHandler<RasterImagePagesChangedEventArgs>(Image_PagesChanged);
   Debug.WriteLine("Adding a single page");
   srcImage.AddPage(pageImage);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Load a multi page image and add a few pages to this image
   loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName1);
   pageImage = await codecs.LoadAsync(LeadStreamFactory.Create(loadFile));
   pageImage.PagesChanged += new EventHandler<RasterImagePagesChangedEventArgs>(Image_PagesChanged);
   Debug.WriteLine("Adding multi-pages");
   srcImage.AddPages(pageImage, 1, 2);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Insert a page in the middle
   Debug.WriteLine("Inserting a page");
   srcImage.InsertPage(4, pageImage);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Insert the rest of the pages at the beginning
   Debug.WriteLine("Inserting pages");
   srcImage.InsertPages(0, pageImage, 1, -1);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Remove the first page
   Debug.WriteLine("Removing a page");
   srcImage.RemovePageAt(1);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Remove the last 3 pages
   Debug.WriteLine("Removing pages");
   srcImage.RemovePages(srcImage.PageCount - 3, -1);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Remove all the pages (leaves 1)
   Debug.WriteLine("Removing all pages");
   srcImage.RemoveAllPages();
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   srcImage.Dispose();
   codecs.Dispose();
}

void Image_PagesChanged(object sender, RasterImagePagesChangedEventArgs e)
{
   Debug.WriteLine("Added = {0}, Index = {1}, Count = {2}", e.Action, e.StartIndex, e.Count);
}
using Leadtools;
using Leadtools.Codecs;
using Leadtools.Dicom;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Core;
using Leadtools.ImageProcessing.Color;
using Leadtools.Examples;
using Leadtools.Windows.Media;

public void PagesChangedExample(RasterImage srcImage, RasterImage pageImage1, RasterImage pageImage2)
{
   // srcImage is the multi-page image
   srcImage.PagesChanged += new EventHandler<RasterImagePagesChangedEventArgs>(Image_PagesChanged);
   // Show the number of pages in this file
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Show and change the active page
   Debug.WriteLine("Active page: {0}", srcImage.Page);
   srcImage.Page = 3;
   Debug.WriteLine("Active page: {0}", srcImage.Page);
   srcImage.Page = 1;

   // pageImage1 is a single page image, add it to the end
   pageImage1.PagesChanged += new EventHandler<RasterImagePagesChangedEventArgs>(Image_PagesChanged);
   Debug.WriteLine("Adding a single page");
   srcImage.AddPage(pageImage1);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Load a multi page image and add a few pages to this image
   pageImage2.PagesChanged += new EventHandler<RasterImagePagesChangedEventArgs>(Image_PagesChanged);
   Debug.WriteLine("Adding multi-pages");
   srcImage.AddPages(pageImage2, 1, 2);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Insert a page in the middle
   Debug.WriteLine("Inserting a page");
   srcImage.InsertPage(4, pageImage2);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Insert the rest of the pages at the beginning
   Debug.WriteLine("Inserting pages");
   srcImage.InsertPages(0, pageImage2, 1, -1);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Remove the first page
   Debug.WriteLine("Removing a page");
   srcImage.RemovePageAt(1);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Remove the last 3 pages
   Debug.WriteLine("Removing pages");
   srcImage.RemovePages(srcImage.PageCount - 3, -1);
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   // Remove all the pages (leaves 1)
   Debug.WriteLine("Removing all pages");
   srcImage.RemoveAllPages();
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount);

   srcImage.Dispose();
   pageImage1.Dispose();
   pageImage2.Dispose();
}

void Image_PagesChanged(object sender, RasterImagePagesChangedEventArgs e)
{
   Debug.WriteLine("Added = {0}, Index = {1}, Count = {2}", e.Action, e.StartIndex, e.Count);
}
Imports Leadtools
Imports Leadtools.Codecs
Imports Leadtools.Dicom
Imports Leadtools.ImageProcessing
Imports Leadtools.ImageProcessing.Core
Imports Leadtools.ImageProcessing.Color
Imports Leadtools.Windows.Media

Public Sub PagesChangedExample(ByVal srcImage As RasterImage, ByVal pageImage1 As RasterImage, ByVal pageImage2 As RasterImage)
   ' srcImage is the multi-page image
   AddHandler srcImage.PagesChanged, AddressOf Image_PagesChanged
   ' Show the number of pages in this file
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Show and change the active page
   Debug.WriteLine("Active page: {0}", srcImage.Page)
   srcImage.Page = 3
   Debug.WriteLine("Active page: {0}", srcImage.Page)
   srcImage.Page = 1

   ' pageImage1 is a single page image, add it to the end
   AddHandler pageImage1.PagesChanged, AddressOf Image_PagesChanged
   Debug.WriteLine("Adding a single page")
   srcImage.AddPage(pageImage1)
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Load a multi page image and add a few pages to this image
   AddHandler pageImage2.PagesChanged, AddressOf Image_PagesChanged
   Debug.WriteLine("Adding multi-pages")
   srcImage.AddPages(pageImage2, 1, 2)
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Insert a page in the middle
   Debug.WriteLine("Inserting a page")
   srcImage.InsertPage(4, pageImage2)
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Insert the rest of the pages at the beginning
   Debug.WriteLine("Inserting pages")
   srcImage.InsertPages(0, pageImage2, 1, -1)
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Remove the first page
   Debug.WriteLine("Removing a page")
   srcImage.RemovePageAt(1)
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Remove the last 3 pages
   Debug.WriteLine("Removing pages")
   srcImage.RemovePages(srcImage.PageCount - 3, -1)
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   ' Remove all the pages (leaves 1)
   Debug.WriteLine("Removing all pages")
   srcImage.RemoveAllPages()
   Debug.WriteLine("Pages in the image: {0}", srcImage.PageCount)

   srcImage.Dispose()
   pageImage1.Dispose()
   pageImage2.Dispose()
End Sub

Private Sub Image_PagesChanged(ByVal sender As Object, ByVal e As RasterImagePagesChangedEventArgs)
   Debug.WriteLine("Added = {0}, Index = {1}, Count = {2}", e.Action, e.StartIndex, e.Count)
End Sub
必要条件

ターゲットプラットホーム

参照

参照

RasterImagePagesChangedEventArgsメンバ
Leadtools名前空間