Pick Java Screen capture

Import Java.awt.Desktop;
Import java.awt.Dimension;
Import Java.awt.Rectangle;
Import Java.awt.Robot;
Import Java.awt.Toolkit;
Import Java.awt.image.BufferedImage;
Import Java.io.File;

Import Javax.imageio.ImageIO;

Public class Capturescreen {
public static void Capturescreen (String filename,string folder) throws exception{
Dimension defines the size of the picture, some methods defined by Toolkit can query the native operating system directly. The meaning of this sentence is to get the system screen size, save the Dimension type of screensize inside
Dimension screensize = Toolkit.getdefaulttoolkit (). Getscreensize () ;　　　　
//rectangle Specifies an area in the coordinate space that can be defined by width and height
Rectangle screenrectangle = new Rectangle (screensize);
This class is used for native system input events for test automation, self-running demos, and other applications that require control of the mouse and keyboard.
Robot Robot = new Robot (); The Creatscreencapture method of the
//robot object is to create an image that contains the pixels read from the screen. The image does not include the mouse cursor. The images are then assigned to the Image object.
BufferedImage image = Robot.createscreencapture (Screenrectangle);　　　　

//Save the path, save the image object as a picture file
//Create folder
File Screenfile = new file (fileName);
Determines whether the folder exists
if (!screenfile.exists ()) {
//creates the directory specified by this abstract path name.
Screenfile.mkdir ();
}

//Create a file based on the folder object and file name and format
. file F = new file (screenfile,folder);
Writes an image to File using any imagewriter that supports a fixed type. If there is already a File present, its contents are discarded.　　　　The first of the
//period is the image memory data, the second is the text format, the third is the file object (also can be the data flow, but here to write files, so with the file stream)
Imageio.write (image, "PNG", f);
Automatically open
/* After Jdk1.6 a new class--desktop:the DeskTop class allows a Java application to
launch associated Applic Ations registered on the native desktop to handle a URI or a file.*/
//isdesktopsupported:tests whether this class is supported on the current platform.
//issupported:tests whether an action was supported on the current platform.
//action:represents an Action type. Plus. Open is the name that determines whether it can be opened, returns True
//getdesktop (): Returns the Desktop instance of The current browser context;
if (desktop.isdesktopsupported () &&desktop.getdesktop (). issupported (Desktop.Action.OPEN))
//　　Gets the Desktop object that opens the object that is the file object
Desktop.getdesktop (). open (f);
}

public static void Main (string[] args) {
TODO auto-generated Method Stub
try{
Capturescreen ("f:\\ hello", "11.png");
}catch (Exception e) {
E.printstacktrace ();
}
}

}

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Excerpt URL: http://www.oschina.net/code/snippet_1586782_48653

Pick Java Screen capture