How to screen capture a running full screen DirectX program in Java?

[Dupond Marc]

Hello,

I have been trying several ways to capture a full screen DirectX program in java, namely using Robot library. Sadly all worked but not while the game/program was running in full screen.

#i) First, I tried :

Robot robot = new Robot();
 GraphicsConfiguration config           = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice().getDefaultConfiguration();
final BufferedImage screenshot = robot.createScreenCapture(config.getBounds());
ImageIO.write(screenshot,"png", file);

Results:
-> It works perfectly in no full screen mode
-> in full screen it returns black picture


#ii) Then I tried to press a key, since the game is providing some screenshot future, typing F6 on the keybord:

try {
            Robot bot = new Robot();
            bot.keyPress(KeyEvent.VK_F6);
            bot.delay(50);
            bot.keyRelease(KeyEvent.VK_F6);
        } catch (AWTException ex) {
            Logger.getLogger(main.class.getName()).log(Level.SEVERE, null, ex);
        }

Results:
-> No screenshot is saved. BUT when I type "by hand" the key F6, screenshot is taken by the game, as usual.


#iii) I also tried to simulate IMPR SCR key.
Results:
-> Once again, it works perfectly when the game is not in full screen, but as soon as I run it in full screen, nothing is taken.


I don't know what to do any-more...
I have read some stuff about this, which may help me: javacv - Java interface to OpenCV and more - Google Project Hosting but I have no idea on how to approach this. If anybody could provide me some sample code working or if you could help me to find any clue for taking a screenshot of a directx full screen running program, I would be most grateful.
Thank you for reading.

[Darryl Burke]

Dupond, please BeForthrightWhenCrossPostingToOtherSites
http://www.java-forums.org/advanced-java/62724-how-screen-capture-running-full-screen-directx-program-java.html
http://forums.devshed.com/java-help-9/how-to-screen-capture-a-running-full-screen-directx-program-930127.html

[Dupond Marc]

Darryl Burke wrote:Dupond, please BeForthrightWhenCrossPostingToOtherSites
http://www.java-forums.org/advanced-java/62724-how-screen-capture-running-full-screen-directx-program-java.html
http://forums.devshed.com/java-help-9/how-to-screen-capture-a-running-full-screen-directx-program-930127.html

As explained, I don't know anything about Java forum and if they are active or not, so yes, I won't deny it, I tried in 3 forums, hoping someone could help me in one of these. For now, none answered.
I apologize if it seems a bit rude or inconvenient, but it has been 3 days I searched for this problem hardly sleeping, and by resignation I posted like in these forums, hoping for a solution.

I suppose I won't receive any here after this underlining.. I am really sorry.

[Campbell Ritchie]

Apologies accepted. I shall move this discussion because it is too difficult for “beginning”

I am sure you will receive an answer … if anybody here knows it at all.

[Dupond Marc]

Campbell Ritchie wrote:Apologies accepted. I shall move this discussion because it is too difficult for “beginning”

I am sure you will receive an answer … if anybody here knows it at all.

Thank you very much for your consideration. I will wait for an answer then.

[Campbell Ritchie]

Dupond Marc wrote: . . . Thank you very much for your consideration. I will wait for an answer then.

I don’t know the answer myself, I am afraid.

[K. Tsang]

You may want to check your BufferedImage is getting the full screen size. Below link is somewhat different for BufferedImage.
here

The effect may be the same, I'm not sure.