Visual Basic (Declaration) | |
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Public Function New( _ ByVal sourceImage As RasterImage, _ ByVal sourcePoint As LeadPoint, _ ByVal destinationRect As LeadRect, _ ByVal opacity As Integer _ ) |
Visual Basic (Usage) | Copy Code |
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Dim sourceImage As RasterImage Dim sourcePoint As LeadPoint Dim destinationRect As LeadRect Dim opacity As Integer Dim instance As New AlphaBlendCommand(sourceImage, sourcePoint, destinationRect, opacity) |
C# | |
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public AlphaBlendCommand( RasterImage sourceImage, LeadPoint sourcePoint, LeadRect destinationRect, int opacity ) |
C++/CLI | |
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public: AlphaBlendCommand( RasterImage^ sourceImage, LeadPoint sourcePoint, LeadRect destinationRect, int opacity ) |
Parameters
- sourceImage
- RasterImage object that references the source image.
- sourcePoint
- LeadPoint structure that contains the origin of the source rectangle. The width and height are the same width and height for the destination rectangle.
- destinationRect
- LeadRect structure that contains the destination rectangle.
- opacity
- Opacity value used when combining the areas from the source and affected images. This value is between 0 and 255.
Run the AlphaBlendCommand on an image.
Visual Basic | Copy Code |
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Public Sub AlphaBlendConstructorExample() Dim codecs As New RasterCodecs() codecs.ThrowExceptionsOnInvalidImages = True Dim leadImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")) ' Prepare the command Dim srcImage As RasterImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "ImageProcessingDemo\image3.cmp"), 24, CodecsLoadByteOrder.Bgr, 1, 1) Dim Left As Integer = CType((leadImage.Width / 8), Integer) Dim Top As Integer = CType((leadImage.Height / 8), Integer) Dim Width As Integer = CType(leadImage.Width, Integer) Dim Height As Integer = CType(leadImage.Height, Integer) ' Combine srcImage with image, with half opacity. Dim command As AlphaBlendCommand = New AlphaBlendCommand(srcImage, New LeadPoint(0, 0), New LeadRect(Left, Top, Width, Height), 128) command.Run(leadImage) codecs.Save(leadImage, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24) End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class |
C# | Copy Code |
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public void AlphaBlendConstructorExample() { // Load an image RasterCodecs codecs = new RasterCodecs(); codecs.ThrowExceptionsOnInvalidImages = true; RasterImage image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "Master.jpg")); // Prepare the command RasterImage srcImage = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, @"ImageProcessingDemo\Image3.cmp"), 24, CodecsLoadByteOrder.Bgr, 1, 1); AlphaBlendCommand command = new AlphaBlendCommand(srcImage, new LeadPoint(0, 0), new LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height), 128); command.Run(image); codecs.Save(image, Path.Combine(LEAD_VARS.ImagesDir, "Result.jpg"), RasterImageFormat.Jpeg, 24); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; } |
SilverlightCSharp | Copy Code |
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public void AlphaBlendConstructorExample(RasterImage image, RasterImage srcImage, Stream outStream) { // Prepare the command AlphaBlendCommand command = new AlphaBlendCommand(srcImage, new LeadPoint(0, 0), new LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height), 128); command.Run(image); // Save result image RasterCodecs codecs = new RasterCodecs(); codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24); image.Dispose(); srcImage.Dispose(); } |
SilverlightVB | Copy Code |
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Public Sub AlphaBlendConstructorExample(ByVal image As RasterImage, ByVal srcImage As RasterImage, ByVal outStream As Stream) ' Prepare the command Dim command As AlphaBlendCommand = New AlphaBlendCommand(srcImage, New LeadPoint(0, 0), New LeadRect(image.Width / 8, image.Height / 8, image.Width, image.Height), 128) command.Run(image) ' Save result image Dim codecs As RasterCodecs = New RasterCodecs() codecs.Save(image, outStream, RasterImageFormat.Jpeg, 24) image.Dispose() srcImage.Dispose() End Sub |
Target Platforms: Silverlight 3.0, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only)