PrintDocument.PrintPage イベントとは? わかりやすく解説

Weblio 辞書 > コンピュータ > .NET Framework クラス ライブラリ リファレンス > PrintDocument.PrintPage イベントの意味・解説 

PrintDocument.PrintPage イベント

現在のページ印刷する出力必要なとき発生します

名前空間: System.Drawing.Printing
アセンブリ: System.Drawing (system.drawing.dll 内)
構文構文

Public Event PrintPage As
 PrintPageEventHandler
Dim instance As PrintDocument
Dim handler As PrintPageEventHandler

AddHandler instance.PrintPage, handler
public event PrintPageEventHandler PrintPage
public:
event PrintPageEventHandler^ PrintPage {
    void add (PrintPageEventHandler^ value);
    void remove (PrintPageEventHandler^ value);
}
/** @event */
public void add_PrintPage (PrintPageEventHandler
 value)

/** @event */
public void remove_PrintPage (PrintPageEventHandler
 value)
JScript では、イベント使用できますが、新規に宣言することはできません。
解説解説
使用例使用例

PrintPage イベント処理するコード例次に示します

この例では、System.Drawing、System.Drawing.Printing、および System.IO の各名前空間使用します

Public Class PrintingExample
    Inherits System.Windows.Forms.Form
    Private components As System.ComponentModel.Container
    Private printButton As System.Windows.Forms.Button
    Private printFont As Font
    Private streamToPrint As StreamReader
    
    Public Sub New()
        ' The Windows Forms Designer requires the following call.
        InitializeComponent()
    End Sub    
    
    ' The Click event is raised when the user clicks the Print button.
    Private Sub printButton_Click(sender As
 Object, e As EventArgs)
        Try
            streamToPrint = New StreamReader("C:\My
 Documents\MyFile.txt")
            Try
                printFont = New Font("Arial",
 10)
                Dim pd As New
 PrintDocument()
                AddHandler pd.PrintPage, AddressOf
 Me.pd_PrintPage
                pd.Print()
            Finally
                streamToPrint.Close()
            End Try
        Catch ex As Exception
            MessageBox.Show(ex.Message)
        End Try
    End Sub    
    
    ' The PrintPage event is raised for each page to be printed.
    Private Sub pd_PrintPage(sender As
 Object, ev As PrintPageEventArgs)
        Dim linesPerPage As Single
 = 0
        Dim yPos As Single
 = 0
        Dim count As Integer
 = 0
        Dim leftMargin As Single
 = ev.MarginBounds.Left
        Dim topMargin As Single
 = ev.MarginBounds.Top
        Dim line As String
 = Nothing
        
        ' Calculate the number of lines per page.
        linesPerPage = ev.MarginBounds.Height / printFont.GetHeight(ev.Graphics)
        
        ' Print each line of the file.
        While count < linesPerPage
            line = streamToPrint.ReadLine()
            If line Is Nothing
 Then
                Exit While
            End If      
            yPos = topMargin + count * printFont.GetHeight(ev.Graphics)
            ev.Graphics.DrawString(line, printFont, Brushes.Black, leftMargin, yPos,
 New StringFormat())
            count += 1
        End While
        
        ' If more lines exist, print another page.
        If Not (line Is
 Nothing) Then
            ev.HasMorePages = True
        Else
            ev.HasMorePages = False
        End If
    End Sub
     
    
    ' The Windows Forms Designer requires the following procedure.
    Private Sub InitializeComponent()
        Me.components = New System.ComponentModel.Container()
        Me.printButton = New System.Windows.Forms.Button()
        
        Me.ClientSize = New System.Drawing.Size(504,
 381)
        Me.Text = "Print Example"
        
        printButton.ImageAlign = System.Drawing.ContentAlignment.MiddleLeft
        printButton.Location = New System.Drawing.Point(32, 110)
        printButton.FlatStyle = System.Windows.Forms.FlatStyle.Flat
        printButton.TabIndex = 0
        printButton.Text = "Print the file."
        printButton.Size = New System.Drawing.Size(136, 40)
        AddHandler printButton.Click, AddressOf
 printButton_Click
        
        Me.Controls.Add(printButton)
    End Sub 

    ' This is the main entry point for the application.    
    Public Shared Sub Main()
        Application.Run(New PrintingExample())
    End Sub

End Class

public class PrintingExample : System.Windows.Forms.Form
 
{
    private System.ComponentModel.Container components;
    private System.Windows.Forms.Button printButton;
    private Font printFont;
    private StreamReader streamToPrint;

   public PrintingExample() : base() 
   {
      // The Windows Forms Designer requires the following call.
      InitializeComponent();
   }

   // The Click event is raised when the user clicks the Print button.
   private void printButton_Click(object sender,
 EventArgs e) 
   {
      try 
      {
          streamToPrint = new StreamReader
             ("C:\\My Documents\\MyFile.txt");
          try 
          {
             printFont = new Font("Arial", 10);
             PrintDocument pd = new PrintDocument();
             pd.PrintPage += new PrintPageEventHandler
                (this.pd_PrintPage);
             pd.Print();
          }  
          finally 
          {
             streamToPrint.Close();
          }
      }  
      catch(Exception ex) 
      {
          MessageBox.Show(ex.Message);
      }
   }

   // The PrintPage event is raised for each page to be printed.
   private void pd_PrintPage(object sender,
 PrintPageEventArgs ev) 
   {
      float linesPerPage = 0;
      float yPos = 0;
      int count = 0;
      float leftMargin = ev.MarginBounds.Left;
      float topMargin = ev.MarginBounds.Top;
      string line = null;

      // Calculate the number of lines per page.
      linesPerPage = ev.MarginBounds.Height / 
         printFont.GetHeight(ev.Graphics);

      // Print each line of the file.
      while(count < linesPerPage && 
         ((line=streamToPrint.ReadLine()) != null)) 
      {
         yPos = topMargin + (count * 
            printFont.GetHeight(ev.Graphics));
         ev.Graphics.DrawString(line, printFont, Brushes.Black, 
            leftMargin, yPos, new StringFormat());
         count++;
      }

      // If more lines exist, print another page.
      if(line != null)
         ev.HasMorePages = true;
      else
         ev.HasMorePages = false;
   }


   // The Windows Forms Designer requires the following procedure.
   private void InitializeComponent() 
   {
      this.components = new System.ComponentModel.Container();
      this.printButton = new System.Windows.Forms.Button();

      this.ClientSize = new System.Drawing.Size(504,
 381);
      this.Text = "Print Example";

      printButton.ImageAlign = 
         System.Drawing.ContentAlignment.MiddleLeft;
      printButton.Location = new System.Drawing.Point(32, 110);
      printButton.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
      printButton.TabIndex = 0;
      printButton.Text = "Print the file.";
      printButton.Size = new System.Drawing.Size(136, 40);
      printButton.Click += new System.EventHandler(printButton_Click);

      this.Controls.Add(printButton);
   }

   // This is the main entry point for the application.
   public static void Main(string[]
 args) 
   {
      Application.Run(new PrintingExample());
   }
}

public ref class PrintingExample: public
 System::Windows::Forms::Form
{
private:
   System::ComponentModel::Container^ components;
   System::Windows::Forms::Button^ printButton;
   System::Drawing::Font^ printFont;
   StreamReader^ streamToPrint;

public:
   PrintingExample()
      : Form()
   {
      
      // The Windows Forms Designer requires the following call.
      InitializeComponent();
   }


private:

   // The Click event is raised when the user clicks the Print button.
   void printButton_Click( Object^ /*sender*/, EventArgs^ /*e*/
 )
   {
      try
      {
         streamToPrint = gcnew StreamReader( "C:\\My Documents\\MyFile.txt"
 );
         try
         {
            printFont = gcnew System::Drawing::Font( "Arial",10 );
            PrintDocument^ pd = gcnew PrintDocument;
            pd->PrintPage += gcnew PrintPageEventHandler( this,
 &PrintingExample::pd_PrintPage );
            pd->Print();
         }
         finally
         {
            streamToPrint->Close();
         }

      }
      catch ( Exception^ ex ) 
      {
         MessageBox::Show( ex->Message );
      }

   }


   // The PrintPage event is raised for each page to be printed.
   void pd_PrintPage( Object^ /*sender*/, PrintPageEventArgs^
 ev )
   {
      float linesPerPage = 0;
      float yPos = 0;
      int count = 0;
      float leftMargin = (float)ev->MarginBounds.Left;
      float topMargin = (float)ev->MarginBounds.Top;
      String^ line = nullptr;
      
      // Calculate the number of lines per page.
      linesPerPage = ev->MarginBounds.Height / printFont->GetHeight( ev->Graphics
 );
      
      // Print each line of the file.
      while ( count < linesPerPage && ((line = streamToPrint->ReadLine())
 != nullptr) )
      {
         yPos = topMargin + (count * printFont->GetHeight( ev->Graphics ));
         ev->Graphics->DrawString( line, printFont, Brushes::Black, leftMargin,
 yPos, gcnew StringFormat );
         count++;
      }

      
      // If more lines exist, print another page.
      if ( line != nullptr )
            ev->HasMorePages = true;
      else
            ev->HasMorePages = false;
   }


   // The Windows Forms Designer requires the following procedure.
   void InitializeComponent()
   {
      this->components = gcnew System::ComponentModel::Container;
      this->printButton = gcnew System::Windows::Forms::Button;
      this->ClientSize = System::Drawing::Size( 504, 381 );
      this->Text = "Print Example";
      printButton->ImageAlign = System::Drawing::ContentAlignment::MiddleLeft;
      printButton->Location = System::Drawing::Point( 32, 110 );
      printButton->FlatStyle = System::Windows::Forms::FlatStyle::Flat;
      printButton->TabIndex = 0;
      printButton->Text = "Print the file.";
      printButton->Size = System::Drawing::Size( 136, 40 );
      printButton->Click += gcnew System::EventHandler( this,
 &PrintingExample::printButton_Click );
      this->Controls->Add( printButton );
   }

};


// This is the main entry point for the application.
int main()
{
   Application::Run( gcnew PrintingExample );
}

public class PrintingExample extends System.Windows.Forms.Form
{
    private System.ComponentModel.Container components;
    private System.Windows.Forms.Button printButton;
    private Font printFont;
    private StreamReader streamToPrint;

    public PrintingExample()
    {
        // The Windows Forms Designer requires the following call.
        InitializeComponent();
    } //PrintingExample

    // The Click event is raised when the user clicks the Print button.
    private void printButton_Click(Object sender,
 EventArgs e)
    {
        try {
            streamToPrint = new StreamReader("C:\\My Documents\\MyFile.txt");
            try {
                printFont = new Font("Arial", 10);
                PrintDocument pd = new PrintDocument();
                pd.add_PrintPage(new PrintPageEventHandler(this.pd_PrintPage));
                pd.Print();
            }
            finally {
                streamToPrint.Close();
            }
        }
        catch (System.Exception ex) {
            MessageBox.Show(ex.get_Message());
        }
    } //printButton_Click

    // The PrintPage event is raised for each page to be printed.
    private void pd_PrintPage(Object sender,
 PrintPageEventArgs ev)
    {
        float linesPerPage = 0;
        float yPos = 0;
        int count = 0;
        float leftMargin = ev.get_MarginBounds().get_Left();
        float topMargin = ev.get_MarginBounds().get_Top();
        String line = null;

        // Calculate the number of lines per page.
        linesPerPage = ev.get_MarginBounds().get_Height() / 
            printFont.GetHeight(ev.get_Graphics());

        // Print each line of the file.
        while ((count < linesPerPage && 
            (line = streamToPrint.ReadLine()) != null)) {
            yPos = topMargin + count * printFont.GetHeight(ev.get_Graphics());
            ev.get_Graphics().DrawString(line, printFont, Brushes.get_Black(),
                leftMargin, yPos, new StringFormat());
            count++;
        }

        // If more lines exist, print another page.
        if (line != null) {
            ev.set_HasMorePages(true);
        }
        else {
            ev.set_HasMorePages(false);
        }
    } //pd_PrintPage

    // The Windows Forms Designer requires the following procedure.
    private void InitializeComponent()
    {
        this.components = new System.ComponentModel.Container();
        this.printButton = new System.Windows.Forms.Button();
        this.set_ClientSize(new System.Drawing.Size(504,
 381));
        this.set_Text("Print Example");
        printButton.set_ImageAlign(System.Drawing.ContentAlignment.MiddleLeft);
        printButton.set_Location(new System.Drawing.Point(32,
 110));
        printButton.set_FlatStyle(System.Windows.Forms.FlatStyle.Flat);
        printButton.set_TabIndex(0);
        printButton.set_Text("Print the file.");
        printButton.set_Size(new System.Drawing.Size(136, 40));
        printButton.add_Click(new System.EventHandler(printButton_Click));
        this.get_Controls().Add(printButton);
    } //InitializeComponent

    // This is the main entry point for the application.
    public static void main(String[]
 args)
    {
        Application.Run(new PrintingExample());
    } //main
} //PrintingExample
プラットフォームプラットフォーム
バージョン情報バージョン情報
参照参照
関連項目
PrintDocument クラス
PrintDocument メンバ
System.Drawing.Printing 名前空間
PrintPageEventHandler
PrintPageEventArgs
PrintDocument.BeginPrint イベント
PrintDocument.EndPrint イベント
QueryPageSettings
Graphics クラス



英和和英テキスト翻訳>> Weblio翻訳
英語⇒日本語日本語⇒英語
  

辞書ショートカット

すべての辞書の索引

「PrintDocument.PrintPage イベント」の関連用語

PrintDocument.PrintPage イベントのお隣キーワード
検索ランキング

   

英語⇒日本語
日本語⇒英語
   



PrintDocument.PrintPage イベントのページの著作権
Weblio 辞書 情報提供元は 参加元一覧 にて確認できます。

   
日本マイクロソフト株式会社日本マイクロソフト株式会社
© 2025 Microsoft.All rights reserved.

©2025 GRAS Group, Inc.RSS