Hello dear programmers!
Ok :

I'm creating a "paintBrush" (like windows have):
I want to create a polyline (what you can call "FreeHand") , anyway, I understood I suppose to have a dynamic array of Points (for instence:

"
Point[] curvePoints = new Point[];
"

But I get the following error:

Array creation must have array size or array initializer

"
Which means I'm doing something wrong in the defintion (I want a dynamic array) How do I define it?

Also You will have my gradedute, if you can show me how should I continue to create the poly line.. (what should I put in mouse move, down , up?)

Sincirly yours,

Rotem

This is how it's done:

Point[] curvePoints = new Point[0];

in the mousedown event, add a point like this:

addPoint(curvePoints, new Point(e.X,e.Y));

You have to define the addPoint func to add a point.
(you could use a System.Collections.Array, wich have it predefined, but it lowers performance...)

The add func should look like this: (written from head...)

add(params Point[] p){
            Point[] tmp = new Point[curvePoints.Length + p.Length];
            curvedPoints.CopyTo(tmp, 0);
            p.CopyTo(tmp, curvedPoints.Length);
            curvedPoints = tmp;
}

I don't got time to write anymore...
Have fun with this code

Happy coding wishes
the one and only
Niklas Ulvinge aka IDK

Hi Niklas .

I just wanted to say thanks for your help (To be honest I havent managed to create the FreeHand, I just dont know what to do...)

Anyway thanks for your help..

Rotem