InsertChannel Method

Visual Basic
C#
Managed Extensions for C++
C++/CLI

'Declaration
 
Public Shared Sub InsertChannel( _
   ByVal page As ImGearRasterPage, _
   ByVal newChannelPos As Integer, _
   ByVal channel As ImGearChannelRef _
)

'Usage
 
Dim page As ImGearRasterPage
Dim newChannelPos As Integer
Dim channel As ImGearChannelRef
 
ImGearRasterProcessing.InsertChannel(page, newChannelPos, channel)

public static void InsertChannel( 
   ImGearRasterPage page,
   int newChannelPos,
   ImGearChannelRef channel
)

public: static void InsertChannel( 
   ImGearRasterPage* page,
   int newChannelPos,
   ImGearChannelRef channel
)

public:
static void InsertChannel( 
   ImGearRasterPage^ page,
   int newChannelPos,
   ImGearChannelRef channel
)

Parameters

page: Page to insert channel to.
newChannelPos: Position of the channel in the page.
channel: Reference to the channel to be inserted.

C#

// Separate image into separate images for each channel.
ImGearChannelRef[] igChannelRef = ImGearRasterProcessing.SeparateChannels(igRasterPage);
// Remove the alpha channel from an RGBA image.
ImGearRasterProcessing.RemoveChannel(igRasterPage, 3);
// Save the page out without the alpha channel.
using (FileStream localFile = new FileStream("withoutalpha.jpg", FileMode.Create))
{
    ImGearFileFormats.SavePage(igRasterPage,localFile, 0, ImGearSavingModes.OVERWRITE, ImGearSavingFormats.JPG);
}
//Set the colorspace to RGBA again.
ImGearRasterProcessing.ConvertColorSpace(
    igRasterPage, new ImGearColorSpace(ImGearColorSpaceIDs.RGBA));
// Add the alpha channel back to the image.
ImGearRasterProcessing.InsertChannel(igRasterPage, 3, igChannelRef[3]);
// Remove the alpha channel added by the colorspace conversion.
ImGearRasterProcessing.RemoveChannel(igRasterPage, 4);

Visual Basic

' Separate image into separate images for each channel.
Dim igChannelRef As ImGearChannelRef() = ImGearRasterProcessing.SeparateChannels(igRasterPage)
' Remove the alpha channel from an RGBA image.
ImGearRasterProcessing.RemoveChannel(igRasterPage, 3)
' Save the page out without the alpha channel.
Using localFile As New FileStream("withoutalpha.jpg", FileMode.Create)
    ImGearFileFormats.SavePage(igRasterPage, localFile, 0, ImGearSavingModes.OVERWRITE, ImGearSavingFormats.JPG)
End Using
'Set the colorspace to RGBA again.
ImGearRasterProcessing.ConvertColorSpace(igRasterPage, New ImGearColorSpace(ImGearColorSpaceIDs.RGBA))
' Add the alpha channel back to the image.
ImGearRasterProcessing.InsertChannel(igRasterPage, 3, igChannelRef(3))
' Remove the alpha channel added by the colorspace conversion.
ImGearRasterProcessing.RemoveChannel(igRasterPage, 4)

Reference

ImGearRasterProcessing Class
ImGearRasterProcessing Members
ImGearRasterPage Class
ImGearChannelRef Structure