Public Function LoadPsdLayer( _
   ByVal fileName As String, _
   ByVal bitsPerPixel As Integer, _
   ByVal order As CodecsLoadByteOrder, _
   ByVal layer As Integer, _
   ByVal layerInfo As CodecsPsdLayerInfo _
) As RasterImage

Visual Basic (Usage)	Copy Code
Dim instance As RasterCodecs Dim fileName As String Dim bitsPerPixel As Integer Dim order As CodecsLoadByteOrder Dim layer As Integer Dim layerInfo As CodecsPsdLayerInfo Dim value As RasterImage   value = instance.LoadPsdLayer(fileName, bitsPerPixel, order, layer, layerInfo)

public RasterImage LoadPsdLayer( 
   string fileName,
   int bitsPerPixel,
   CodecsLoadByteOrder order,
   int layer,
   CodecsPsdLayerInfo layerInfo
)

public:
RasterImage LoadPsdLayer( 
   String^ fileName,
   int bitsPerPixel,
   CodecsLoadByteOrder order,
   int layer,
   CodecsPsdLayerInfo^ layerInfo
) 

Parameters

fileName

A String containing the name of the image file to load.

bitsPerPixel

Resulting image pixel depth. Valid values are:

Value	Meaning
0	Keep the original file's pixel depth (Do not convert).
1 to 8	The specified bits per pixel in the resulting image.
12	12 bits per pixel in the resulting image.
16	16 bits per pixel in the resulting image.
24	24 bits per pixel in the resulting image.
32	32 bits per pixel in the resulting image.
48	48 bits per pixel in the resulting image.
64	64 bits per pixel in the resulting image.

order

The desired color order.

layer

Index of the layer to load. This index is zero-based. Pass 0 to load the first layer, 1 to load the second layer, etc.

layerInfo

a CodecsPsdLayerInfo object to be updated with information about the loaded layer. Pass a null reference (Nothing in Visual Basic) for this parameter if layer information is not needed.

Return Value

This example will create and save a PSD with layers before re-loading the first layer back

Visual Basic

Copy Code

Public Sub PsdLayersExample()    RasterCodecs.Startup()    Dim codecs As RasterCodecs = New RasterCodecs()    Dim layerFileNames As String() = _    { _       LeadtoolsExamples.Common.ImagesPath.Path + "Sample1.cmp", _       LeadtoolsExamples.Common.ImagesPath.Path + "Sample2.cmp", _       LeadtoolsExamples.Common.ImagesPath.Path + "Sample3.cmp" _    }    Dim srcFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp"    Dim destFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.psd"    ' Load the layer images (as pages in 1 image)    Dim layersImage As RasterImage = Nothing    For Each layerFileName As String In layerFileNames       Dim layerImage As RasterImage = codecs.Load(layerFileName)       If layersImage Is Nothing Then          layersImage = layerImage       Else          layersImage.AddPage(layerImage)       End If    Next layerFileName    ' Load the image that is made up of all the layers    Dim image As RasterImage = codecs.Load(srcFileName, 24, CodecsLoadByteOrder.BgrOrGray, 1, 1)    ' Save this image and all the layers    codecs.SavePsdWithLayers(image, destFileName, 0, layersImage, Nothing)    image.Dispose()    layersImage.Dispose()    Dim imageInfo As CodecsImageInfo = codecs.GetInformation(destFileName, False)    If imageInfo.Psd.Layers > 0 Then       Dim layer As Integer = 0       Dim layerInfo As CodecsPsdLayerInfo = New CodecsPsdLayerInfo()       Dim layerImage As RasterImage = codecs.LoadPsdLayer(destFileName, 0, CodecsLoadByteOrder.BgrOrGray, layer, layerInfo)       Dim blendModeKey As String = Encoding.ASCII.GetString(layerInfo.GetBlendModeKey())       Console.WriteLine("Loaded layer at index {0}, size is {1} by {2}, Blend mode key:{3}", layer, layerImage.Width, layerImage.Height, blendModeKey)       layerImage.Dispose()    Else       Console.WriteLine("No layers found in this PSD file")    End If    ' Clean up    codecs.Dispose()    RasterCodecs.Shutdown() End Sub

C#

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public void PsdLayersExample()  {     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();       string[] layerFileNames =     {        LeadtoolsExamples.Common.ImagesPath.Path + "Sample1.cmp",        LeadtoolsExamples.Common.ImagesPath.Path + "Sample2.cmp",        LeadtoolsExamples.Common.ImagesPath.Path + "Sample3.cmp",     };       string srcFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp";     string destFileName = LeadtoolsExamples.Common.ImagesPath.Path + "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);          string blendModeKey = Encoding.ASCII.GetString(layerInfo.GetBlendModeKey());          Console.WriteLine("Loaded layer at index {0}, size is {1} by {2}, Blend mode key:{3}", layer, layerImage.Width, layerImage.Height, blendModeKey);        layerImage.Dispose();     }     else        Console.WriteLine("No layers found in this PSD file");       // Clean up     codecs.Dispose();     RasterCodecs.Shutdown();  }

Use this method to load PSD files only.

This method works similarly to a normal RasterCodecs.Load(String) method, except that it loads only a layer from a PSD file. It loads the layer specified in layer.

Before calling this method, you may need to get or set file information, such as the number of layers on the file. Refer to CodecsPsdImageInfo.

The number of layers in a file is indicated in CodecsPsdImageInfo.Layers. If this number is 0, the file does not contains any layers and this method should not be called.

Target Platforms: Microsoft .NET Framework 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family

Reference