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#1 Posted : Thursday, December 1, 2005 6:42:18 AM(UTC)

Partha  
Partha

Groups: Registered
Posts: 1


Sir,

I want to do the Automatic scroll of the RasterImageViewer with the customized value of x and y coordinates. I am supplying those x and y coordinates programatically.

I am facing another problem and this problem is something like that When I am drawing a rectangle on the Image in RasterImageViewer then it's OK. But when I press the horizontal or vertical scrollbar then that rectangle dissappears.

Pls, Help me.

 

Thanx,

Partha

 

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#2 Posted : Wednesday, December 7, 2005 3:13:02 AM(UTC)
Maen Hasan

Groups: Registered, Tech Support
Posts: 1,328

Was thanked: 1 time(s) in 1 post(s)

Hello,

What is the exact programming interface that you use?
However, if you are using .Net programming interface, then please provide me with the following information:
- How exactly do you draw the rectangle on the RasterImageViewer control?
- What is the exact function that you use to draw the rectangle?

However, if you use the following code to draw the rectangle, do you get the same problem?
+--------------------------------------------+
RasterImageGdiPlusGraphicsContainer container = rasterImageViewer1.Image.CreateGdiPlusGraphics();
container.Graphics.SmoothingMode = SmoothingMode.HighQuality;
Brush br = new LinearGradientBrush(Point.Empty, new Point(200, 200), Color.Red, Color.Yellow);
Font font1 = new Font("Lucida Console",3.11f);
PointF point1 = new PointF(100,100);
container.Graphics.DrawRectangle(new Pen(Color.Yellow,3),20,20,100,100);
+--------------------------------------------+

Thanks,
Maen Badwan
LEADTOOLS Technical Support
 
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