Can bitmap object be save as PNG or JPEG file format

Is C# bi开发者_JAVA百科tmap supporting saving the object to JPEG or PNG file format?

---

Bitmap extends Image, therefore you can call: Image.Save (String, ImageFormat). For example:

using System.Drawing
// ...

Bitmap img = new Bitmap("file.jpg");
img.Save("file.png", ImageFormat.Png); // ImageFormat.Jpeg, etc

Omitting the second argument and just calling Image.Save(String) will save the image as its raw format.

---

In addition to last post (can't comment existing post since i'm new here)

File type is NOT based off of the extension. Just try to do img.Save("result.bmp") and Image.Save("result.bmp", ImageFormat.Bmp);

and you'll see that file sizes are dramatically different.