Question

I have a System.Drawing.Graphics took from a picturebox.

basically I draw some lines over a background image stored into the picturebox
now I wish save a png that contains the background image and everything is drawn over there…

is there a way to do this?
thanks in advance

Answer 1

If you are drawing these lines on the Paint event then you need to create a BitMap with the BackgroundImage and call your paint function with the Bitmap’s Graphics, and then call Bitmap.Save().

        Bitmap bmp = new Bitmap(MyPictureBox.BackgroundImage);
        var g = Graphics.FromImage(bmp);
        MyPictureBox.OnPaint(new System.Windows.Forms.PaintEventArgs(g, bmp.GetBounds());