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RasterImageConverter Class

Summary
Converts a LEADTOOLS Leadtools.RasterImage to and from GDI and GDI+ image objects.
Syntax
C#
C++/CLI
Python
public static class RasterImageConverter 
public ref class RasterImageConverter abstract sealed  
class RasterImageConverter: 
Remarks

The LEADTOOLS RasterImage class provides platform-independent representation of an image. It serves as a working area for image manipulation and conversion. LEADTOOLS functions use this class for accessing the image in memory and for maintaining the characteristics of the image. This class contains the functionality for converting a LEADTOOLS Leadtools.RasterImage to and from a Windows GDI or GDI+ image objects.

The RasterImageConverter class contains the following functionality:

Method Description
ConvertToImage Converts a LEADTOOLS Leadtools.RasterImage to GDI+ System.Drawing.Image
ConvertFromImage Converts a GDI+ System.Drawing.Image to LEADTOOLS Leadtools.RasterImage
ChangeToImage Converts a LEADTOOLS Leadtools.RasterImage to GDI+ System.Drawing.Image sharing the same memory.
MakeCompatible Makes a Leadtools.RasterImage pixel and color format compatible with GDI+
TestCompatible, GetNearestBitsPerPixel, IsValidBitsPerPixel and GetNearestPixelFormat Utility methods for testing and making a LEADTOOLS Leadtools.RasterImage GDI+ compatible
FromHBitmap and ToHBitmap Converts a Leadtools.RasterImage to and from a GDI DDB (Device Dependant Bitmap)
ChangeFromHBitmap and ChangeToHBitmap Converts a Leadtools.RasterImage to and from a GDI DDB (Device Dependant Bitmap) while sharing the same memory
ToWmf, FromWmf, ToEmf and FromEmf Converts a Leadtools.RasterImage to and from a Windows Metafile or Enhanced Metafile
ChangeToWmf, ChangeFromWmf, ChangeToEmf and ChangeFromEmf Converts a Leadtools.RasterImage to and from a Windows Metafile or Enhanced Metafile while sharing the same memory

For more information refer to RasterImage and GDI/GDI+.

Example
C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
 
 
public void RasterImageConverterExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir, "GdiPlusImage.bmp"); 
   string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "RasterImage.bmp"); 
 
   // Load a RasterImage, convert to GDI+ image 
   using (RasterImage leadImage = codecs.Load(srcFileName)) 
   { 
      // Convert to GDI+ image 
      using (Image gdipImage = RasterImageConverter.ConvertToImage(leadImage, ConvertToImageOptions.None)) 
      { 
         // Save it to disk 
         gdipImage.Save(destFileName1, ImageFormat.Bmp); 
      } 
   } 
 
   // Load a GDI+ image, convert to RasterImage 
   using (Image gdipImage = Image.FromFile(destFileName1)) 
   { 
      // Convert to RasterImage 
      using (RasterImage leadImage = RasterImageConverter.ConvertFromImage(gdipImage, ConvertFromImageOptions.None)) 
      { 
         // Save it to disk 
         codecs.Save(leadImage, destFileName2, RasterImageFormat.Bmp, 0); 
      } 
   } 
 
   // Clean up 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS23\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 23.0.2024.2.29
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Leadtools.Drawing Assembly

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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.