SetBlendModeKey Method

Summary

Sets the blend mode key for the layer.

Syntax

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

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

Reference

CodecsPsdLayerInfo Class

CodecsPsdLayerInfo Members

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Help Version 22.0.2023.5.5

Leadtools.Codecs Assembly

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