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SetBlendModeKey Method

Summary
Sets the blend mode key for the layer.
Syntax
C#
C++/CLI
Python
public void SetBlendModeKey( 
   byte[] blendModeKey 
) 
public: 
void SetBlendModeKey(  
   array<byte>^ blendModeKey 
)  
def SetBlendModeKey(self,blendModeKey): 

Parameters

blendModeKey
A four-byte character array that represents the blend mode key for the layer. Possible values are:

Value Meaning
norm Normal
dark Darken
lite Lighten
hue Hue
sat Saturation
colr Color
lum Luminosity
mul Multiply
scrn Screen
diss Dissolve
over Overlay
hLit Hard light
sLit Soft light
diff Difference
smud Exclusion
div Dodge
idiv Color burn
Remarks

For more information, refer to the Layer and Mask Information Section from Adobe.

Example
C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.ImageProcessing.Color; 
using Leadtools.Svg; 
 
 
public void PsdLayersExample() 
{ 
   RasterCodecs codecs = new RasterCodecs(); 
 
   string[] layerFileNames = 
   { 
   Path.Combine(LEAD_VARS.ImagesDir, "Sample1.cmp"), 
   Path.Combine(LEAD_VARS.ImagesDir, "Sample2.cmp"), 
   Path.Combine(LEAD_VARS.ImagesDir, "Sample3.cmp"), 
 }; 
 
   string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp"); 
   string destFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.psd"); 
 
   // Load the layer images (as pages in 1 image) 
   RasterImage layersImage = null; 
   foreach (string layerFileName in layerFileNames) 
   { 
      RasterImage layerImage = codecs.Load(layerFileName); 
      if (layersImage == null) 
         layersImage = layerImage; 
      else 
         layersImage.AddPage(layerImage); 
   } 
 
   // Load the image that is made up of all the layers 
   RasterImage image = codecs.Load(srcFileName, 24, CodecsLoadByteOrder.BgrOrGray, 1, 1); 
 
   // Save this image and all the layers 
   codecs.SavePsdWithLayers(image, destFileName, 0, layersImage, null); 
   image.Dispose(); 
   layersImage.Dispose(); 
 
   CodecsImageInfo imageInfo = codecs.GetInformation(destFileName, false); 
   if (imageInfo.Psd.Layers > 0) 
   { 
      int layer = 0; 
      CodecsPsdLayerInfo layerInfo = new CodecsPsdLayerInfo(); 
      RasterImage layerImage = codecs.LoadPsdLayer(destFileName, 0, CodecsLoadByteOrder.BgrOrGray, layer, layerInfo); 
 
      layerInfo.Clipping = 0; 
      layerInfo.Left = 0; 
      layerInfo.LoadMaskImage = true; 
      layerInfo.MaskImage = null; 
      layerInfo.Name = null; 
      layerInfo.Opacity = 0; 
      layerInfo.Top = 0; 
 
      string blendModeKey = Encoding.ASCII.GetString(layerInfo.GetBlendModeKey()); 
 
      Debug.WriteLine("Loaded layer at index {0}, size is {1} by {2}, Blend mode key:{3}", layer, layerImage.Width, layerImage.Height, blendModeKey); 
      Debug.WriteLine("TransparencyProtected is {0}, Visible is {1}, Obsolete is {2} and Psd5OrLater is {3}", 
         layerInfo.TransparencyProtected, layerInfo.Visible, layerInfo.Obsolete, layerInfo.Psd5OrLater); 
 
      char[] byteArray = "dark".ToCharArray(); //Define Blend Mode Key 
      layerInfo.SetBlendModeKey(Encoding.ASCII.GetBytes(byteArray)); 
      Debug.WriteLine("Loaded layer at index {0} with updated Blend mode key:{1}", layer, Encoding.ASCII.GetString(layerInfo.GetBlendModeKey())); 
 
      layerImage.Dispose(); 
   } 
   else 
      Debug.WriteLine("No layers found in this PSD file"); 
 
   // Clean up 
   codecs.Dispose(); 
} 
 
static class LEAD_VARS 
{ 
   public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 22.0.2023.5.5
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© 1991-2023 LEAD Technologies, Inc. All Rights Reserved.

Leadtools.Codecs Assembly

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