Visual Basic (Declaration) | |
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Public Property Index As Integer |
Visual Basic (Usage) | ![]() |
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Dim instance As RasterImageAnimator Dim value As Integer instance.Index = value value = instance.Index |
C# | |
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public int Index {get; set;} |
Property Value
An integer value that indicates the index of the current frame during animation playback.
This example uses Index to skip frames during a playback
Visual Basic | ![]() |
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Sub RasterImageAnimatorIndexExample(ByVal panel As Panel) ' Initialize the RasterCodecs object Dim codecs As New RasterCodecs() ' Load the animated GIF file Dim fileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Eye.gif") Dim animatedImage As RasterImage = codecs.Load(fileName) ' Create the target image, we want it to be in the animated image size Dim targetImage As New RasterImage( _ RasterMemoryFlags.Conventional, _ animatedImage.AnimationGlobalSize.Width, _ animatedImage.AnimationGlobalSize.Height, _ animatedImage.BitsPerPixel, _ animatedImage.Order, _ animatedImage.ViewPerspective, _ Nothing, _ IntPtr.Zero, _ 0) ' Copy the palette from the animated image to this newly created image animatedImage.CopyPaletteTo(targetImage) ' Create the RasterImageAnimator object Dim animator As New RasterImageAnimator(targetImage, animatedImage) ' Animate it ' Use GDI+ paint engine to support transparent colors Dim props As RasterPaintProperties = RasterPaintProperties.Default props.PaintEngine = RasterPaintEngine.GdiPlus Dim g As Graphics = panel.CreateGraphics() Dim state As RasterImageAnimatorState Do Dim srcRect As New LeadRect(0, 0, targetImage.ImageWidth, targetImage.ImageHeight) Dim updateRect As LeadRect Dim destRect As LeadRect Dim index As Integer state = animator.Process() Select Case (state) Case RasterImageAnimatorState.WaitDelay, _ RasterImageAnimatorState.WaitInputDelay, _ RasterImageAnimatorState.Render 'Continue processing Case RasterImageAnimatorState.WaitInput ' In case the animated image has the "wait for user input" flags, ' cancel the waiting animator.CancelWait() Case RasterImageAnimatorState.PreRender index = animator.Index index = index + 1 animator.Index = index Case RasterImageAnimatorState.PostRender ' Get the area in the target image that has changed updateRect = animator.GetUpdateRectangle(True) ' Paint it destRect = New LeadRect(0, 0, targetImage.ImageWidth, targetImage.ImageHeight) RasterImagePainter.Paint(targetImage, g, srcRect, updateRect, destRect, destRect, props) End Select Loop While (state <> RasterImageAnimatorState.End) g.Dispose() animator.Dispose() targetImage.Dispose() animatedImage.Dispose() codecs.Dispose() End Sub Public NotInheritable Class LEAD_VARS Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images" End Class |
C# | ![]() |
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public void RasterImageAnimatorIndexExample(Panel panel) { // Initialize the RasterCodecs object RasterCodecs codecs = new RasterCodecs(); // Load the animated GIF file string fileName = Path.Combine(LEAD_VARS.ImagesDir, "Eye.gif"); RasterImage animatedImage = codecs.Load(fileName); // Create the target image, we want it to be in the animated image size RasterImage targetImage = new RasterImage( RasterMemoryFlags.Conventional, animatedImage.AnimationGlobalSize.Width, animatedImage.AnimationGlobalSize.Height, animatedImage.BitsPerPixel, animatedImage.Order, animatedImage.ViewPerspective, null, IntPtr.Zero, 0); // Copy the palette from the animated image to this newly created image animatedImage.CopyPaletteTo(targetImage); // Create the RasterImageAnimator object RasterImageAnimator animator = new RasterImageAnimator(targetImage, animatedImage); // Animate it // Use GDI+ paint engine to support transparent colors RasterPaintProperties props = RasterPaintProperties.Default; props.PaintEngine = RasterPaintEngine.GdiPlus; Graphics g = panel.CreateGraphics(); RasterImageAnimatorState state; do { LeadRect srcRect = new LeadRect(0, 0, targetImage.ImageWidth, targetImage.ImageHeight); LeadRect updateRect; LeadRect destRect; int index; state = animator.Process(); switch(state) { case RasterImageAnimatorState.WaitDelay: case RasterImageAnimatorState.WaitInputDelay: case RasterImageAnimatorState.Render: // Continue processing break; case RasterImageAnimatorState.WaitInput: // In case the animated image has the "wait for user input" flags, // cancel the waiting animator.CancelWait(); break; case RasterImageAnimatorState.PreRender: index = animator.Index; index++; animator.Index = index; break; case RasterImageAnimatorState.PostRender: // Get the area in the target image that has changed updateRect = animator.GetUpdateRectangle(true); // Paint it destRect = new LeadRect(0, 0, targetImage.ImageWidth, targetImage.ImageHeight); RasterImagePainter.Paint(targetImage, g, srcRect, updateRect, destRect, destRect, props); break; default: break; } } while(state != RasterImageAnimatorState.End); g.Dispose(); animator.Dispose(); targetImage.Dispose(); animatedImage.Dispose(); codecs.Dispose(); } static class LEAD_VARS { public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images"; } |
SilverlightCSharp | ![]() |
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SilverlightVB | ![]() |
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You can use the Index property to skip frames during a playback if required.
Target Platforms: Silverlight, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7, MAC OS/X (Intel Only), Windows Phone 7