Public Function New( _
   ByVal sourceImage As RasterImage, _
   ByVal sourcePoint As Point, _
   ByVal destinationRectangle As Rectangle, _
   ByVal opacity As Integer, _
   ByVal maskImage As RasterImage, _
   ByVal underlayImage As RasterImage, _
   ByVal underlayOffset As Point _
)

Visual Basic (Usage)	Copy Code
Dim sourceImage As RasterImage Dim sourcePoint As Point Dim destinationRectangle As Rectangle Dim opacity As Integer Dim maskImage As RasterImage Dim underlayImage As RasterImage Dim underlayOffset As Point   Dim instance As TextureAlphaBlendCommand(sourceImage, sourcePoint, destinationRectangle, opacity, maskImage, underlayImage, underlayOffset)

public TextureAlphaBlendCommand( 
   RasterImage sourceImage,
   Point sourcePoint,
   Rectangle destinationRectangle,
   int opacity,
   RasterImage maskImage,
   RasterImage underlayImage,
   Point underlayOffset
)

public:
TextureAlphaBlendCommand( 
   RasterImage sourceImage,
   Point sourcePoint,
   Rectangle destinationRectangle,
   int opacity,
   RasterImage maskImage,
   RasterImage underlayImage,
   Point underlayOffset
)

Parameters

sourceImage

RasterImage object that references the source image.

sourcePoint

Point structure that contains the origin of the source rectangle.

destinationRectangle

Rectangle structure that contains the destination rectangle.

opacity

Opacity value used when combining the areas from the result of feathering and destination images. Valid values range from 0 to 255.

maskImage

RasterImage object that references the fade mask, if you want to combine the two images just with opacity set this parameter to null.

underlayImage

RasterImage that references the image to be used as the underlying image. The command will use this image to underlay the mask image. You could ignore this parameter effect by passing null.

underlayOffset

References the underlay image offset with respect to the destination image. The command will use this point to calculate the parts of the underlay image that will be applied to the mask image. Using this point gives the user the ability to provide the feel of continuous texture when applying this command to neighboring parts inside the destination image using the same or different mask. If underlayImage is null also set this parameter to null.

Run the TextureAlphaBlendCommand on an image.

Visual Basic

Copy Code

Public Sub TextureAlphaBlendConstructorExample()    RasterCodecs.Startup()    Dim codecs As New RasterCodecs()    codecs.ThrowExceptionsOnInvalidImages = True    Dim leadImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg")    ' Prepare the command    Dim srcImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Image3.cmp", 4, CodecsLoadByteOrder.Bgr, 1, 1)    'Load the fade mask image.    Dim maskImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "FadeMask.bmp", 4, CodecsLoadByteOrder.Bgr, 1, 1)    Dim underlayImage As RasterImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Slave.jpg", 4, CodecsLoadByteOrder.Bgr, 1, 1)    Dim rect As Rectangle = New Rectangle(leadImage.Width \ 2 - maskImage.Width \ 2, leadImage.Height \ 2 - maskImage.Height \ 2, maskImage.Width, maskImage.Height)    Dim command As TextureAlphaBlendCommand = New TextureAlphaBlendCommand(srcImage, New Point(0, 0), rect, 100, maskImage, underlayImage, New Point(150, 10))    ' Combine ImageSource with the affected image, with MaskImage and a 100 opacity.    command.Run(leadImage)    codecs.Save(leadImage, LeadtoolsExamples.Common.ImagesPath.Path + "Result.jpg", RasterImageFormat.Jpeg, 24)    RasterCodecs.Shutdown() End Sub

C#

Copy Code

public void TextureAlphaBlendConstructorExample()  {     // Load an image     RasterCodecs.Startup();     RasterCodecs codecs = new RasterCodecs();     codecs.ThrowExceptionsOnInvalidImages = true;       RasterImage image = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Master.jpg");       // Prepare the command     RasterImage srcImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Image3.cmp", 4, CodecsLoadByteOrder.Bgr, 1, 1);       //Load the fade mask image.     RasterImage maskImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "FadeMask.bmp", 4, CodecsLoadByteOrder.Bgr, 1, 1);       RasterImage underlayImage = codecs.Load(LeadtoolsExamples.Common.ImagesPath.Path + "Slave.jpg", 4, CodecsLoadByteOrder.Bgr, 1, 1);       Rectangle rect = new Rectangle(image.Width / 2 - maskImage.Width / 2, image.Height / 2  - maskImage.Height / 2, maskImage.Width, maskImage.Height);       TextureAlphaBlendCommand command = new TextureAlphaBlendCommand(srcImage, new Point(0, 0), rect, 100, maskImage, underlayImage, new Point(150, 10));       // Combine ImageSource with the affected image, with MaskImage and a 100 opacity.     command.Run(image);     codecs.Save(image, LeadtoolsExamples.Common.ImagesPath.Path + "Result.jpg", RasterImageFormat.Jpeg, 24);       RasterCodecs.Shutdown();  }

Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

Reference