PrintPageEventArgs.Graphics 属性

定义

命名空间:

System.Drawing.Printing

程序集:

System.Drawing.Common.dll

包:

System.Drawing.Common v8.0.0

Source:

PrintPageEventArgs.cs

获取用于绘制页的 Graphics。

public:
 property System::Drawing::Graphics ^ Graphics { System::Drawing::Graphics ^ get(); };

public System.Drawing.Graphics? Graphics { get; }

member this.Graphics : System.Drawing.Graphics

Public ReadOnly Property Graphics As Graphics

属性值

Graphics

用于绘制页的 Graphics。

示例

下面的代码示例假定Button已在 上Form创建名为 printButton 和 PrintDocument 命名pd的 。 确保 的 ClickButton 事件与 printButton_Click 方法相关联， PrintPage 并且 的 PrintDocument 事件与 pd_PrintPage 示例中的 方法相关联。 printButton_Click示例中的 方法调用Print引发 PrintPage 事件的方法，并打印 方法中指定的 pd_PrintPage .bmp 文件。 若要运行此示例，请更改要打印的位图的路径。

对于此示例， System.Drawing请使用 、 System.Drawing.Printing和 System.Windows.Forms 命名空间。

private:
   // Specifies what happens when the user clicks the Button.
   void printButton_Click( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      try
      {
         pd->Print();
      }
      catch ( Exception^ ex ) 
      {
         MessageBox::Show( "An error occurred while printing", ex->ToString() );
      }
   }

   // Specifies what happens when the PrintPage event is raised.
   void pd_PrintPage( Object^ /*sender*/, PrintPageEventArgs^ ev )
   {
      // Draw a picture.
      ev->Graphics->DrawImage( Image::FromFile( "C:\\My Folder\\MyFile.bmp" ),
         ev->Graphics->VisibleClipBounds );
      
      // Indicate that this is the last page to print.
      ev->HasMorePages = false;
   }

// Specifies what happens when the user clicks the Button.
 private void printButton_Click(object sender, EventArgs e) 
 {
   try 
   {
     // Assumes the default printer.
     pd.Print();
   }  
   catch(Exception ex) 
   {
     MessageBox.Show("An error occurred while printing", ex.ToString());
   }
 }
 
 // Specifies what happens when the PrintPage event is raised.
 private void pd_PrintPage(object sender, PrintPageEventArgs ev) 
 {      
   // Draw a picture.
   ev.Graphics.DrawImage(Image.FromFile("C:\\My Folder\\MyFile.bmp"), ev.Graphics.VisibleClipBounds);
      
   // Indicate that this is the last page to print.
   ev.HasMorePages = false;
 }

' Specifies what happens when the user clicks the Button.
Private Sub printButton_Click(sender As Object, e As EventArgs) _
Handles printButton.Click
    Try
       pd.Print()
    Catch ex As Exception
        MessageBox.Show("An error occurred while printing", _
            ex.ToString())
    End Try
End Sub    

' Specifies what happens when the PrintPage event is raised.
Private Sub pd_PrintPage(sender As Object, ev As PrintPageEventArgs) _
Handles pd.PrintPage

    ' Draw a picture.
    ev.Graphics.DrawImage(Image.FromFile("C:\My Folder\MyFile.bmp"), _
        ev.Graphics.VisibleClipBounds)
    
    ' Indicate that this is the last page to print.
    ev.HasMorePages = False
End Sub

另请参阅

• Graphics