Public Function LoadPsdChannel( _
   ByVal fileName As String, _
   ByVal bitsPerPixel As Integer, _
   ByVal order As CodecsLoadByteOrder, _
   ByVal channelIndex As Integer, _
   ByVal channelInfo As CodecsPsdChannelInfo _
) As RasterImage

Visual Basic (Usage)	Copy Code
Dim instance As RasterCodecs Dim fileName As String Dim bitsPerPixel As Integer Dim order As CodecsLoadByteOrder Dim channelIndex As Integer Dim channelInfo As CodecsPsdChannelInfo Dim value As RasterImage   value = instance.LoadPsdChannel(fileName, bitsPerPixel, order, channelIndex, channelInfo)

public RasterImage LoadPsdChannel( 
   string fileName,
   int bitsPerPixel,
   CodecsLoadByteOrder order,
   int channelIndex,
   CodecsPsdChannelInfo channelInfo
)

public:
RasterImage LoadPsdChannel( 
   String^ fileName,
   int bitsPerPixel,
   CodecsLoadByteOrder order,
   int channelIndex,
   CodecsPsdChannelInfo^ channelInfo
) 

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.

channelIndex

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

channelInfo

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

Return Value

This example loads all channels from a PSD file

Visual Basic

Copy Code

Public Sub LoadPsdChannels()    RasterCodecs.Startup()    Dim codecs As New RasterCodecs()    Dim srcFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Sunflower.psd"    Dim imageInfo As CodecsImageInfo = codecs.GetInformation(srcFileName, False)    For iCount As Integer = 0 To imageInfo.Psd.Channels - 1       Dim ChannelInfo As New CodecsPsdChannelInfo()       Dim ChannelImage As RasterImage = codecs.LoadPsdChannel(srcFileName, 0, CodecsLoadByteOrder.Rgb, iCount, ChannelInfo)       Dim destFileName As String = LeadtoolsExamples.Common.ImagesPath.Path + "Channel_"       destFileName = destFileName & iCount & ".Bmp"       codecs.Save(ChannelImage, destFileName, RasterImageFormat.Bmp, ChannelImage.BitsPerPixel)       ChannelImage.Dispose()    Next    ' Clean up    codecs.Dispose()    RasterCodecs.Shutdown() End Sub

C#

Copy Code

public void LoadPsdChannels()  {     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();       string srcFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Sunflower.psd";       CodecsImageInfo imageInfo = codecs.GetInformation(srcFileName, false);     for (int iCount = 0; iCount < imageInfo.Psd.Channels; iCount++)     {        CodecsPsdChannelInfo ChannelInfo = new CodecsPsdChannelInfo();        RasterImage ChannelImage = codecs.LoadPsdChannel(srcFileName, 0, CodecsLoadByteOrder.Rgb, iCount, ChannelInfo);          string destFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Channel_";        destFileName = destFileName + iCount + ".Bmp";          codecs.Save(ChannelImage, destFileName, RasterImageFormat.Bmp, ChannelImage.BitsPerPixel);          ChannelImage.Dispose();     }     // 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 channel from a PSD file. It loads the channel specified in channel.

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

The number of channels in a file is indicated in CodecsPsdImageInfo.Channels. If this number is 0, the file does not contains any channels 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