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GetPaintPalette Method

Summary

Returns a GDI+ palette corresponding to this Leadtools.RasterImage if painted on the given graphic object.

Syntax

C#
VB
C++
public static ColorPalette GetPaintPalette( 
   RasterImage image, 
   Graphics graphics 
) 
Public Shared Function GetPaintPalette( _ 
   ByVal image As Leadtools.RasterImage, _ 
   ByVal graphics As Graphics _ 
) As ColorPalette 
public: 
static ColorPalette^ GetPaintPalette(  
   Leadtools.RasterImage^ image, 
   Graphics^ graphics 
)  

Parameters

image
The source image.

graphics
The graphics object on which this Leadtools.RasterImage is painted.

Return Value

a GDI+ palette

Remarks

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

For more information, refer to Handling Palette Changes.

Example

C#
VB
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.Drawing; 
using Leadtools.ImageProcessing; 
 
public void GetPaintPaletteExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
   RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"), 8, CodecsLoadByteOrder.Rgb, 1, 1); 
 
   using (Bitmap btmp = new Bitmap(1, 1)) 
   { 
      using (Graphics g = Graphics.FromImage(btmp)) 
      { 
         ColorPalette palette = RasterImagePainter.GetPaintPalette(image, g); 
         if (palette != null) 
         { 
            Console.WriteLine("Paint palette colors:"); 
            for (int i = 0; i < palette.Entries.Length; i++) 
            { 
               Console.WriteLine("{0} - {1}", i, palette.Entries[i]); 
            } 
         } 
         else 
         { 
            Console.WriteLine("There is no palette"); 
         } 
      } 
   } 
 
   image.Dispose(); 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; 
} 
Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.Drawing 
Imports Leadtools.ImageProcessing 
 
Public Sub GetPaintPaletteExample() 
   Dim codecs As New RasterCodecs() 
   Dim image As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"), 8, CodecsLoadByteOrder.Rgb, 1, 1) 
 
   Using btmp As New Bitmap(1, 1) 
      Using g As Graphics = Graphics.FromImage(btmp) 
         Dim palette As ColorPalette = RasterImagePainter.GetPaintPalette(image, g) 
         If Not IsNothing(palette) Then 
            Console.WriteLine("Paint palette colors:") 
            For i As Integer = 0 To palette.Entries.Length - 1 
               Console.WriteLine("{0} - {1}", i, palette.Entries(i)) 
            Next 
         Else 
            Console.WriteLine("There is no palette") 
         End If 
      End Using 
   End Using 
 
   image.Dispose() 
   codecs.Dispose() 
End Sub 
 
Public NotInheritable Class LEAD_VARS 
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" 
End Class 

Requirements

Target Platforms

Help Version 19.0.2017.10.18
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Leadtools.Drawing Assembly