Hi,
i have a UserControl called DoubleBufferPanel which is a typical Panel
but is set to be DoubleBuffered by the SetStyle() method. I draw my
images on that Panel and no clipping occurs, but when I set it to
AutoScroll and begin scrolling, the image becomes distorted like this:
http://www.flickr.com/photos/37459057@N04/3882558185/

When I resize the form which contains the panel and when I size the
image to fit the panel's dimensions everything is ok, but when I
scroll in any direction this kind of distortion keeps appearing. I
used this code to set the AutoScroll and draw the image:

this.imagePanel.AutoScroll = true;
this.imagePanel.AutoScrollMinSize = MyBitmap.Size;
g.DrawImage(MyBitmap, new RectangleF
(this.imagePanel.AutoScrollPosition.X, this.AutoScrollPosition.Y,
MyBitmap.Width, MyBitmap.Height));

What is the cause of this problem and how can it be solved?

"moss" <(E-Mail Removed)> wrote in message
news:7ce4bfb6-f4d0-451f-83ab-(E-Mail Removed)...
> Hi,
> i have a UserControl called DoubleBufferPanel which is a typical Panel
> but is set to be DoubleBuffered by the SetStyle() method. I draw my
> images on that Panel and no clipping occurs, but when I set it to
> AutoScroll and begin scrolling, the image becomes distorted like this:
> http://www.flickr.com/photos/37459057@N04/3882558185/
>
> When I resize the form which contains the panel and when I size the
> image to fit the panel's dimensions everything is ok, but when I
> scroll in any direction this kind of distortion keeps appearing. I
> used this code to set the AutoScroll and draw the image:
>
> this.imagePanel.AutoScroll = true;
> this.imagePanel.AutoScrollMinSize = MyBitmap.Size;
> g.DrawImage(MyBitmap, new RectangleF
> (this.imagePanel.AutoScrollPosition.X, this.AutoScrollPosition.Y,
> MyBitmap.Width, MyBitmap.Height));
>
> What is the cause of this problem and how can it be solved?

Looks like it`s redrawing the image without clearing the previous one.
I`ve just tried to set this up but no matter what size image I put into the
panel no scroll bars appear. Wierd.

mick

On 3 ruj, 15:07, "mick" <coughco...@privacy.com> wrote:

> Looks like it`s redrawing the image without clearing the previous one.
> I`ve just tried to set this up but no matter what *size image I put into the
> panel no scroll bars appear. Wierd.
>
> mick

I posted the original thread to another group (sorry for
multiposting), this is the other discussion:
http://groups.google.com/group/micro...9c061f5e22b854