Public Property ImageRectangle As Rectangle

Visual Basic (Usage)	Copy Code
Dim instance As RasterImagePrinter Dim value As Rectangle   instance.ImageRectangle = value   value = instance.ImageRectangle

public Rectangle ImageRectangle {get; set;}

public: __property Rectangle get_ImageRectangle();
public: __property void set_ImageRectangle( 
   Rectangle value
);

public:
property Rectangle ImageRectangle {
   Rectangle get();
   void set (Rectangle value);
}

Return Value

This example loads an image and then prints the top-left corner of the image to the bottom-right corner of the page.

Visual Basic

Copy Code

Public imageToPrint As RasterImage = Nothing Public Sub RasterImagePrinter_ImageRectangle()    ' load an image    RasterCodecs.Startup()    Dim codecs As RasterCodecs = New RasterCodecs()    imageToPrint = codecs.Load("C:\program files\LEAD Technologies\LEADTOOLS 15\Images\sample1.cmp")    RasterCodecs.Shutdown()    If Not PrinterSettings.InstalledPrinters Is Nothing AndAlso PrinterSettings.InstalledPrinters.Count > 0 Then       Dim printDocument As PrintDocument = New PrintDocument()       AddHandler printDocument.PrintPage, AddressOf pd_PrintPage       printDocument.Print()    End If    ' dispose the image    imageToPrint.Dispose() End Sub Private Sub pd_PrintPage(ByVal sender As Object, ByVal e As PrintPageEventArgs)    ' initialize a new RasterImagePrinter object    Dim printer As RasterImagePrinter = New RasterImagePrinter()    ' Use stretch so we fill out the page rectangle    printer.SizeMode = RasterPaintSizeMode.Stretch    printer.HorizontalAlignMode = RasterPaintAlignMode.Center    printer.VerticalAlignMode = RasterPaintAlignMode.Center    ' print the top-left quarter corner portion of the image    Dim rc As Rectangle = New Rectangle(0, 0, imageToPrint.Width \ 2, imageToPrint.Height \ 2)    rc = imageToPrint.RectangleToImage(RasterViewPerspective.TopLeft, rc)    printer.ImageRectangle = rc    ' print to the bottom-right corner of the image    Dim pageWidth As Single = e.MarginBounds.Width / 2.0F    Dim pageHeight As Single = e.MarginBounds.Height / 2.0F    printer.PageRectangle = New RectangleF(pageWidth, pageHeight, pageWidth, pageHeight)    ' print the image    printer.Print(imageToPrint, imageToPrint.Page, e) End Sub

C#

Copy Code

public RasterImage imageToPrint = null;  public void RasterImagePrinter_ImageRectangle()  {     // load an image     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();     imageToPrint = codecs.Load(@"C:\program files\LEAD Technologies\LEADTOOLS 15\Images\sample1.cmp");     RasterCodecs.Shutdown();       if(PrinterSettings.InstalledPrinters != null && PrinterSettings.InstalledPrinters.Count > 0)     {        PrintDocument printDocument = new PrintDocument();        printDocument.PrintPage += new PrintPageEventHandler(pd_PrintPage);        printDocument.Print();     }       // dispose the image     imageToPrint.Dispose();  }    private void pd_PrintPage(object sender, PrintPageEventArgs e)  {     // initialize a new RasterImagePrinter object     RasterImagePrinter printer = new RasterImagePrinter();       // Use stretch so we fill out the page rectangle     printer.SizeMode = RasterPaintSizeMode.Stretch;     printer.HorizontalAlignMode = RasterPaintAlignMode.Center;     printer.VerticalAlignMode = RasterPaintAlignMode.Center;       // print the top-left quarter corner portion of the image     Rectangle rc = new Rectangle(0, 0, imageToPrint.Width / 2, imageToPrint.Height / 2);     rc = imageToPrint.RectangleToImage(RasterViewPerspective.TopLeft, rc);     printer.ImageRectangle = rc;       // print to the bottom-right corner of the image     float pageWidth = e.MarginBounds.Width / 2F;     float pageHeight = e.MarginBounds.Height / 2F;     printer.PageRectangle = new RectangleF(pageWidth, pageHeight, pageWidth, pageHeight);       // print the image     printer.Print(imageToPrint, imageToPrint.Page, e);  }

This rectangle must be in image coordinates. To convert between image and device coordinates refer to RectangleFromImage and RectangleToImage

You can also pass Rectangle.Empty to use the whole image.

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Reference