Buffer swapping

Does anyone know how to do flicker-free animation in GDI+? In GDI, you could
define memory device contexts, draw to them, and then blt the result to the
actual window context. So far, I've been unable to find a corresponding way
of doing things in GDI+

Any ideas?

You can do this in one of two ways.

1. Use automatic double buffering in windows forms.  In the
constructor or form load event, simply execute this statement

this.SetStyle(
ControlStyles.AllPaintingInWmPaint |
ControlStyles.UserPaint |
ControlStyles.DoubleBuffer,true);

2. If you want to do it manually, simply specify a globally scoped
Bitmap object, draw to that, then draw the finished image to the
screen in one shot.  So something like:

private Bitmap imgBuffer;

...

Graphics g = Graphics.FromImage(this.imgBuffer);

Hope that helps,
Joel Martinez
Orlando .NET User Group
http://www.onetug.org
http://www.codecube.net


"toa" <toalmark@hotmail.com> wrote in message news:<iA3md.7925$rh1.201557@news2.e.nsc.no>..
.
> Does anyone know how to do flicker-free animation in GDI+? In GDI, you cou
ld
> define memory device contexts, draw to them, and then blt the result to th
e
> actual window context. So far, I've been unable to find a corresponding wa
y
> of doing things in GDI+
>
> Any ideas?