PrintDocument コンストラクタとは何？わかりやすく解説 Weblio辞書

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());
   }
}

C++

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