AddRoundRectangleToRegion Method

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public void AddRoundRectangleToRegion( 
   RasterRegionXForm xform,
   LeadRect rc,
   LeadSize ellipse,
   RasterRegionCombineMode combineMode
)

'Declaration
 
Public Sub AddRoundRectangleToRegion( _
   ByVal xform As RasterRegionXForm, _
   ByVal rc As LeadRect, _
   ByVal ellipse As LeadSize, _
   ByVal combineMode As RasterRegionCombineMode _
)

'Usage
 
Dim instance As RasterImage
Dim xform As RasterRegionXForm
Dim rc As LeadRect
Dim ellipse As LeadSize
Dim combineMode As RasterRegionCombineMode
 
instance.AddRoundRectangleToRegion(xform, rc, ellipse, combineMode)

public void AddRoundRectangleToRegion( 
   RasterRegionXForm xform,
   LeadRect rc,
   LeadSize ellipse,
   RasterRegionCombineMode combineMode
)

 function Leadtools.RasterImage.AddRoundRectangleToRegion( 
   xform ,
   rc ,
   ellipse ,
   combineMode 
)

public:
void AddRoundRectangleToRegion( 
   RasterRegionXForm^ xform,
   LeadRect rc,
   LeadSize ellipse,
   RasterRegionCombineMode combineMode
)

Parameters

xform: RasterRegionXForm object that LEADTOOLS uses to translate between display coordinates and image coordinates. If you specify null (Nothing in Visual Basic) in this parameter, the scalar fields default to 1, the offsets default to 0, and the view perspective defaults to the image view perspective.
rc: A LeadRect that specifies the bounding rectangle of the region.
ellipse: Specifies the width and height of the ellipse that describes the arc of the rounded corners.
combineMode: The action to take regarding the existing image region, if one is defined.

To update an existing region, you specify how the new region is to be combined with the existing one using the combineMode parameter. For more information, refer to RasterRegionCombineMode.

For more information, refer to Creating a Region.

For more information, refer to Saving A Region.

For more information, refer to Working with the Existing Region.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Public Sub AddRoundRectangleToRegionExample()
      Dim codecs As RasterCodecs = New RasterCodecs()

      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim destFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_AddRoundRectangleToRegion.bmp")

      ' Load the image
      Dim image As RasterImage = codecs.Load(srcFileName)

      ' Add a round rectangle region

      Dim xform As RasterRegionXForm = New RasterRegionXForm()
      xform.ViewPerspective = RasterViewPerspective.TopLeft
      xform.XOffset = 0
      xform.YOffset = 0
      xform.XScalarDenominator = 1
      xform.XScalarNumerator = 1
      xform.YScalarDenominator = 1
      xform.YScalarNumerator = 1

      Dim rc As LeadRect = New LeadRect(image.ImageWidth \ 4, image.ImageHeight \ 4, image.ImageWidth \ 3, image.ImageHeight \ 3)
      Dim sz As LeadSize = New LeadSize(rc.Width \ 4, rc.Height \ 4)
      image.AddRoundRectangleToRegion(xform, rc, sz, RasterRegionCombineMode.Set)

      ' Draw something on the image
      Dim command As InvertCommand = New InvertCommand()
      command.Run(image)

      ' Save the image
      codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24)

      image.Dispose()
      codecs.Dispose()
   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class

public void AddRoundRectangleToRegionExample()
   {
      RasterCodecs codecs = new RasterCodecs();

      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1_AddRoundRectangleToRegion.bmp");

      // Load the image
      RasterImage image = codecs.Load(srcFileName);

      // Add a round rectangle region

      RasterRegionXForm xform = new RasterRegionXForm();
      xform.ViewPerspective = RasterViewPerspective.TopLeft;
      xform.XOffset = 0;
      xform.YOffset = 0;
      xform.XScalarDenominator = 1;
      xform.XScalarNumerator = 1;
      xform.YScalarDenominator = 1;
      xform.YScalarNumerator = 1;

      LeadRect rc = new LeadRect(image.ImageWidth / 4, image.ImageHeight / 4, image.ImageWidth / 3, image.ImageHeight / 3);
      LeadSize sz = new LeadSize(rc.Width / 4, rc.Height / 4);
      image.AddRoundRectangleToRegion(xform, rc, sz, RasterRegionCombineMode.Set);

      // Draw something on the image
      InvertCommand command = new InvertCommand();
      command.Run(image);

      // Save the image
      codecs.Save(image, destFileName, RasterImageFormat.Bmp, 24);

      image.Dispose();
      codecs.Dispose();
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

RasterImage Class
RasterImage Members