Can I know the size of the file without being called up by Photoshop?

[lee ky]

var MyFile = new File ("/d/a.jpg");

if (MyFile.exists)
{
alert (MyFile.height )
}

[Kukurykus]

What do you mean without beeing called up by Photoshop? An alert? Just don't use it, but set result to variable or other file.