SetAlphaChannel Method (GdPictureImaging)

In This Topic

Sets the Alpha channel of a GdPicture image.

Syntax

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

'Declaration
 
Public Function SetAlphaChannel( _
   ByVal ImageID As Integer, _
   ByVal Alpha() As Byte, _
   ByVal SrcLeft As Integer, _
   ByVal SrcTop As Integer, _
   ByVal Width As Integer, _
   ByVal Height As Integer _
) As GdPictureStatus

public GdPictureStatus SetAlphaChannel( 
   int ImageID,
   byte[] Alpha,
   int SrcLeft,
   int SrcTop,
   int Width,
   int Height
)

public function SetAlphaChannel( 
    ImageID: Integer;
    Alpha: Bytearray of;
    SrcLeft: Integer;
    SrcTop: Integer;
    Width: Integer;
    Height: Integer
): GdPictureStatus;

public function SetAlphaChannel( 
   ImageID : int,
   Alpha : byte[],
   SrcLeft : int,
   SrcTop : int,
   Width : int,
   Height : int
) : GdPictureStatus;

public: GdPictureStatus SetAlphaChannel( 
   int ImageID,
   byte[]* Alpha,
   int SrcLeft,
   int SrcTop,
   int Width,
   int Height
)

public:
GdPictureStatus SetAlphaChannel( 
   int ImageID,
   array<byte>^ Alpha,
   int SrcLeft,
   int SrcTop,
   int Width,
   int Height
)

Parameters

ImageID: GdPicture image identifier.
Alpha: The Alpha channel data.
SrcLeft: The left source pixel of the area.
SrcTop: The top source pixel of the area.
Width: The width of the area in pixel.
Height: The height of the area in pixel.

Return Value

A member of the GdPictureStatus enumeration.

Remarks

This method requires the Image Documents component to run.

Reference

GdPictureImaging Class
GdPictureImaging Members
GetAlphaChannel Method