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UpdateZoneArea Method
See Also  Example
Leadtools.Document Namespace > RasterDocumentEngine Class : UpdateZoneArea Method




pageIndex
Page index. This index is zero-based.
zoneIndex
Zone index to be updated. This index is zero-based.
area
Specifies the new zone area to be updated.
Updates the specified zone area.

Syntax

Visual Basic (Declaration) 
Public Sub UpdateZoneArea( _
   ByVal pageIndex As Integer, _
   ByVal zoneIndex As Integer, _
   ByVal area As Rectangle _
)
Visual Basic (Usage)Copy Code
Dim instance As RasterDocumentEngine
Dim pageIndex As Integer
Dim zoneIndex As Integer
Dim area As Rectangle
 
instance.UpdateZoneArea(pageIndex, zoneIndex, area)
C# 
public void UpdateZoneArea( 
   int pageIndex,
   int zoneIndex,
   Rectangle area
)
Managed Extensions for C++ 
public: void UpdateZoneArea( 
   int pageIndex,
   int zoneIndex,
   Rectangle area
)
C++/CLI 
public:
void UpdateZoneArea( 
   int pageIndex,
   int zoneIndex,
   Rectangle area
)

Parameters

pageIndex
Page index. This index is zero-based.
zoneIndex
Zone index to be updated. This index is zero-based.
area
Specifies the new zone area to be updated.

Example

Visual BasicCopy Code
Public Sub UpdateZoneAreaExample(ByVal graph As Graphics)
   ' Note that this is a sample key, which will not work in your toolkit
   RasterSupport.Unlock(Leadtools.RasterSupportType.Ocr, "TestKey")

   Dim rasterDocument As RasterDocumentEngine
   rasterDocument = RasterDocumentEngine.Instance
   rasterDocument.Startup()
   'assume page is added, refer to AddPage example for more information
   'assume zones are added, refer to AddZone example or FindZones for more information
   'select a zone

   Dim pt As Point = New Point(100, 100)

   rasterDocument.SelectZoneByPoint(graph, 0, pt)
   If rasterDocument.SelectedZoneIndex <> -1 Then
      Dim zoneData As RasterDocumentZoneData = rasterDocument.GetSelectedZoneData(0)
      Dim rc As Rectangle = zoneData.Rectangle
      rc.Offset(10, 50)

      Try
         rasterDocument.UpdateZoneArea(0, rasterDocument.SelectedZoneIndex, rc)
         MessageBox.Show("The selected zone area is updated")
      Catch ex As Exception
         MessageBox.Show(ex.Message)
      End Try
   End If

   rasterDocument.Shutdown()
End Sub
C#Copy Code
public void UpdateZoneAreaExample(Graphics graph) 
{ 
   // Note that this is a sample key, which will not work in your toolkit 
   RasterSupport.Unlock(RasterSupportType.Ocr, "TestKey"); 
   RasterDocumentEngine rasterDocument; 
   rasterDocument = RasterDocumentEngine.Instance; 
   rasterDocument.Startup(); 
 
   // assume page is added, refer to AddPage example for more information 
   // assume zones are added, refer to AddZone example or FindZones for more information 
   // select zone 
 
   Point pt = new Point(100, 100); 
 
   rasterDocument.SelectZoneByPoint(graph, 0, pt); 
   if (rasterDocument.SelectedZoneIndex != -1) 
   { 
      RasterDocumentZoneData zoneData = rasterDocument.GetSelectedZoneData(0); 
      Rectangle rc = zoneData.Rectangle; 
      rc.Offset(10, 50); 
 
      try 
      { 
         rasterDocument.UpdateZoneArea(0, rasterDocument.SelectedZoneIndex, rc); 
         MessageBox.Show("The selected zone area is updated"); 
      } 
      catch (Exception ex) 
      { 
         MessageBox.Show(ex.Message); 
      } 
   } 
 
   rasterDocument.Shutdown(); 
}

Remarks

Updates the specified zone area in the specified page. To update general zone information, call UpdateZone.
For more information, refer to Drawing Pages and Zones.

Requirements

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

See Also

Leadtools.Documentrequires a Document or Medical toolkit license and unlock key. For more information, refer to: Raster Pro/Document/Medical Features