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AnnPicture Class

Summary

Defines an annotation picture along with its transparency information.

Syntax

C#
VB
C++
[SerializableAttribute()] 
public class AnnPicture : ISerializable, IDisposable 
  
<SerializableAttribute()> 
Public Class AnnPicture  
   Implements System.ICloneable, System.IDisposable, System.Runtime.Serialization.ISerializable  
[SerializableAttribute()] 
public ref class AnnPicture : public System.ICloneable, System.IDisposable, System.Runtime.Serialization.ISerializable 

Example

This example creates an image that has a blue ellipse inside a red rectangle.

C#
VB
using Leadtools; 
using Leadtools.Annotations; 
using Leadtools.Codecs; 
using Leadtools.WinForms; 
 
private void AnnPicture_AnnPicture(Graphics graphics) 
{ 
   using (Bitmap btmp = new Bitmap(100, 100, PixelFormat.Format32bppArgb)) 
   { 
      using (Graphics graphicsImage = Graphics.FromImage(btmp)) 
      { 
         graphicsImage.FillRectangle(Brushes.Red, new Rectangle(0, 0, 100, 100)); 
         graphicsImage.FillEllipse(Brushes.Blue, new Rectangle(0, 0, 100, 100)); 
         graphicsImage.Dispose(); 
      } 
 
      // initialize a new AnnPicture class for this image 
      AnnPicture pic = new AnnPicture(btmp); 
 
      // draw the picture with no transparency 
      Rectangle rc = new Rectangle(10, 10, pic.Image.Width, pic.Image.Height); 
      ImageAttributes ia = pic.ImageAttributes; 
      if (ia != null) 
      { 
         graphics.DrawImage(pic.Image, rc, 0, 0, pic.Image.Width, pic.Image.Height, GraphicsUnit.Pixel, ia); 
         ia.Dispose(); 
      } 
      else 
      { 
         if (rc.Width > 1 && rc.Height > 1) 
            graphics.DrawImage(pic.Image, rc); 
      } 
 
      // draw the picture without the ellipse (make transparent color = blue) 
      rc.Offset(0, pic.Image.Height + 10); 
      pic.TransparentMode = AnnPictureTransparentMode.UseColor; 
      pic.TransparentColor = Color.Blue; 
 
      ia = pic.ImageAttributes; 
      if (ia != null) 
      { 
         graphics.DrawImage(pic.Image, rc, 0, 0, pic.Image.Width, pic.Image.Height, GraphicsUnit.Pixel, ia); 
         ia.Dispose(); 
      } 
      else 
      { 
         if (rc.Width > 1 && rc.Height > 1) 
            graphics.DrawImage(pic.Image, rc); 
      } 
 
      // draw the picture without the rectangle (use the top left pixel as the transparent color) 
      rc.Offset(0, pic.Image.Height + 10); 
      pic.TransparentMode = AnnPictureTransparentMode.TopLeftPixel; 
 
      ia = pic.ImageAttributes; 
      if (ia != null) 
      { 
         graphics.DrawImage(pic.Image, rc, 0, 0, pic.Image.Width, pic.Image.Height, GraphicsUnit.Pixel, ia); 
         ia.Dispose(); 
      } 
      else 
      { 
         if (rc.Width > 1 && rc.Height > 1) 
            graphics.DrawImage(pic.Image, rc); 
      } 
   } 
} 
Imports Leadtools 
Imports Leadtools.Annotations 
Imports Leadtools.Codecs 
Imports Leadtools.WinForms 
 
Private Sub AnnPicture_AnnPicture(ByVal g As Graphics) 
   Dim btmp As Bitmap = New Bitmap(100, 100, PixelFormat.Format32bppArgb) 
   Try 
      Dim graphicsImage As Graphics = Graphics.FromImage(btmp) 
      Try 
         graphicsImage.FillRectangle(Brushes.Red, New Rectangle(0, 0, 100, 100)) 
         graphicsImage.FillEllipse(Brushes.Blue, New Rectangle(0, 0, 100, 100)) 
         graphicsImage.Dispose() 
      Finally 
         CType(graphicsImage, IDisposable).Dispose() 
      End Try 
 
      ' initialize a new AnnPicture class for this image 
      Dim pic As AnnPicture = New AnnPicture(btmp) 
 
      ' draw the picture with no transparency 
      Dim rc As Rectangle = New Rectangle(10, 10, pic.Image.Width, pic.Image.Height) 
      Dim ia As ImageAttributes = pic.ImageAttributes 
      If Not ia Is Nothing Then 
         g.DrawImage(pic.Image, rc, 0, 0, pic.Image.Width, pic.Image.Height, GraphicsUnit.Pixel, ia) 
         ia.Dispose() 
      Else 
         If rc.Width > 1 AndAlso rc.Height > 1 Then 
            g.DrawImage(pic.Image, rc) 
         End If 
      End If 
 
      ' draw the picture without the ellipse (make transparent color = blue) 
      rc.Offset(0, pic.Image.Height + 10) 
      pic.TransparentMode = AnnPictureTransparentMode.UseColor 
      pic.TransparentColor = Color.Blue 
 
      ia = pic.ImageAttributes 
      If Not ia Is Nothing Then 
         g.DrawImage(pic.Image, rc, 0, 0, pic.Image.Width, pic.Image.Height, GraphicsUnit.Pixel, ia) 
         ia.Dispose() 
      Else 
         If rc.Width > 1 AndAlso rc.Height > 1 Then 
            g.DrawImage(pic.Image, rc) 
         End If 
      End If 
 
      ' draw the picture without the rectangle (use the top left pixel as the transparent color) 
      rc.Offset(0, pic.Image.Height + 10) 
      pic.TransparentMode = AnnPictureTransparentMode.TopLeftPixel 
 
      ia = pic.ImageAttributes 
      If Not ia Is Nothing Then 
         g.DrawImage(pic.Image, rc, 0, 0, pic.Image.Width, pic.Image.Height, GraphicsUnit.Pixel, ia) 
         ia.Dispose() 
      Else 
         If rc.Width > 1 AndAlso rc.Height > 1 Then 
            g.DrawImage(pic.Image, rc) 
         End If 
      End If 
   Finally 
      CType(btmp, IDisposable).Dispose() 
   End Try 
End Sub

Requirements

Target Platforms

Help Version 19.0.2017.10.27
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Leadtools.Annotations Assembly
Introduction
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Leadtools.Annotations Namespace
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