*RESOLVED* Autoredraw- Again!

[MrPolite]

I cant think of a way to do this without autoredraw!
I have a class that modifies the image inside a picturebox at an arbitrary time. Now how am I suppose to simulate an autoredraw for this?! the picture is modified inside a class, and as soon as the paint event of the picturebox is fired, everything is erased. (I'm using the graphics class to draw an image on the picturebox)



Also why is it that when you set the image property of a picturebox at design time, you wont loose your picture? why is it that .NET redraws the picture itself that way?

[MrPolite]

I dont get it! when I create a new bitmap and I do the drawing on the bitmap and then set the picturebox.image to the bitmap, it will redraw the image inside automatically.

[Hu Flung Dung]

You don't need auto-redraw!

Make an Image (or Bitmap, since it has more functionality) object, kinda like a back buffer. Do all of your drawing on that. Then, in the picture box Paint event, draw the bitmap object on it.

The Bitmap and Image objects wont lose their data.

[MrPolite]

Originally posted by Hu Flung Dung
You don't need auto-redraw!

Make an Image (or Bitmap, since it has more functionality) object, kinda like a back buffer. Do all of your drawing on that. Then, in the picture box Paint event, draw the bitmap object on it.

The Bitmap and Image objects wont lose their data.

umm, I said the drawing is done in a class, so I dont have access to the image that is created by the class that was my problemmo
anyways I ended up defining a new bitmap and making the new picture in the bitmap and then I set the picturebox.image to that bitmap...works fine without the need to redraw