What happens if i don't call dispose()?

Question

    public void screenShot(string path)
    {
        var bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width,
                                        Scree         


        

Answer 1

Basically your code should look like this

public void screenShot(string path)
{
    using (var bmpScreenshot = new Bitmap(Screen.PrimaryScreen.Bounds.Width,
                                    Screen.PrimaryScreen.Bounds.Height,
                                    PixelFormat.Format32bppArgb))

    {
        var gfxScreenshot = Graphics.FromImage(bmpScreenshot);
        gfxScreenshot.CopyFromScreen(Screen.PrimaryScreen.Bounds.X,
                                Screen.PrimaryScreen.Bounds.Y,
                                0,
                                0,
                                Screen.PrimaryScreen.Bounds.Size,
                                CopyPixelOperation.SourceCopy);

        bmpScreenshot.Save(path, ImageFormat.Png);
    }
}

This ensures the unmanaged resources used by the bitmap object are properly released. With one single bitmap you won't run really into trouble if not disposing properly, but once you start bulk processing it becomes critical. Not disposing properly will cause out of memory issues, I've seen memory filling up really fast with improper coding.