I recently started using slick2D in my gaming programs and a problem I have is not having the ability to remove the border/titlebar. I usually do this to create my own cutom look/ interface but if I try:


It doesnt work.

How do you acheive this?

  • \$\begingroup\$ Did you try setundecorated(true)?? \$\endgroup\$
    – Savlon
    Commented Mar 26, 2013 at 2:41
  • \$\begingroup\$ sorry i meant to write true @Savlon but where do i put this? \$\endgroup\$
    – Exikle
    Commented Mar 26, 2013 at 3:07
  • 1
    \$\begingroup\$ I believe this has to be set before the window is created. So you'll need to create a launcher or somehow relaunch the existing window. \$\endgroup\$
    – House
    Commented Mar 26, 2013 at 4:14

2 Answers 2


Ok so here is a basic application that has the title bar removed

public static void main(String[] args){
    JFrame frame = new JFrame("Without Title Bar Frame");

Paste the above code into a java class

Also be sure to import

import javax.swing.JFrame;

You see how frame.setUndecorated(true); is straight after the instantiation of the frame? Place yours in the same place and you will have no issue at all :)

EDIT: here is what I found which may work.



But as it states in that post it isn't support yet.

  • \$\begingroup\$ this would work if i wasnt using slick2D but I am so it won't work because I'm not creating a JFrame \$\endgroup\$
    – Exikle
    Commented Mar 26, 2013 at 20:19
  • \$\begingroup\$ Hmm I see... So you are using Display to create your window? You can't create a full screen app? Have the surrounding areas of your window black? I'm not sure if Display has a setUndecorated method.. You may have to look through the slick2D API \$\endgroup\$
    – Savlon
    Commented Mar 27, 2013 at 1:33
  • \$\begingroup\$ i can create a full screen app (I just need to change false to true in this code : "app.setDisplayMode(FRAME_WIDTH, FRAME_HEIGHT, false);" \$\endgroup\$
    – Exikle
    Commented Mar 27, 2013 at 3:34
  • \$\begingroup\$ I found something that may work... Check my answer again \$\endgroup\$
    – Savlon
    Commented Mar 27, 2013 at 4:21

Originally I was using

AppGameContainer app = new AppGameContainer(new Game());

to create my game. However I wanted to set the frame to be undecorated. So I searched around and found that if you changed

AppGameContainer app = new AppGameContainer(new WizardGame());


CanvasGameContainerapp = new CanvasGameContainer(new Game());

so that its now a canvas and then add it to a JFrame and set that JFrame to undecorated, you would get a undecorated slick2D program.


public static void main(String[] args) throws SlickException {
    JFrame frame = new JFrame();
    CanvasGameContainer app = new CanvasGameContainer(new Game());
    frame.setSize(500, 500);

The only problem that i have with it is that i have to click it once to render the images. If i don't it just has a black screen. This could be because of my other code but I don't think it should happen for anyone else.


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