Drawing on a Image in C#

Question

I'm trying to copy an image from the clipboard onto an existing image. Basically the existing image is 150 X 150 white coloured .jpg image. (Acting as the canvas)

I would like to know how to draw my image from clipboard onto this....

Image imgNew = Clipboard.GetImage(); //Getting the image in clipboard
Bitmap btnImg = new Bitmap(imgNew, 150, 100);  
Graphics g = Graphics.FromImage((Image)btnImg);
g.DrawImage(btnImg, 0, 0, 150, 100);

In this method it is not drawing on the already existing image. Actually I'm using an Imagebox here. So the canvas is set as the imagebox's image.

Thanks

Answer 1

You will need to assign the image to the picturebox

pictureBox1.Image = btnImg;

You should use using to make sure allocated resources are freed when no longer needed. The full code:

using (Image imgNew = Clipboard.GetImage()) //Getting the image in clipboard
{
    if (imgNew != null)
    {
        Bitmap btnImg = new Bitmap(imgNew, 150, 100);
        using (Graphics g = Graphics.FromImage((Image)btnImg))
            g.DrawImage(btnImg, 0, 0, 150, 100);
        pictureBox1.Image = btnImg;
    }
}

Answer 2

Try

Image imgNew = Clipboard.GetImage(); //Getting the image in clipboard
Graphics g = pictureBox1.CreateGraphics();
g.DrawImage(imgNew, 0, 0, 150, 100);