window icon

[luisp88]

Hi everyone, I need to set an image to the window of my application
I've heard it is this way

frame.setIconImage(new ImageIcon(imgURL).getImage());

but not working, I know setIconImage needs an Image as a parameter, but I don't know how to create it because nowhere it asks for the location of my image

another question:is the window icon (in the upper-left) the same as the task bar icon, or do I have to set two differents sized icons?

thanks!

[keang]

but not working, I know setIconImage needs an Image as a parameter, but I don't know how to create it because nowhere it asks for the location of my image

'imgURL' is a URL that holds the location of your image.

another question:is the window icon (in the upper-left) the same as the task bar icon, or do I have to set two differents sized icons?

The java docs says "Note : Native windowing systems may use different images of differing dimensions to represent a window, depending on the context (e.g. window decoration, window list, taskbar, etc.). They could also use just a single image for all contexts or no image at all."

There is a method setIconImages() to allow you to set images of different sizes if required. On Windows a single image will be scaled to suit the various uses.

[luisp88]

I changed imgURL with "/resources/img.png" but still not working

[keang]

Are you sure that is the correct relative path for the file?
Trying creating a File object with that path and see if the file exists.
ie:

System.out.println("file exists = "+new File("/resources/img.png").exists());

[luisp88]

File file = new File("/resources/minilogo.png");
System.out.println(file.exists());

it throws me false, and the file.getAbsolutePath() is C:\resources\logo.png , but it is in my project folder, also I know \ path separators for windows are not allowed to pass in a String, instead I know to scape them. What can I do?

thanks

[Norm]

file.getAbsolutePath() is C:\resources\logo.png
Is that where the file is: C:\resources\
That is where the JVM is looking for it.

[luisp88]

how can I change the absolutePath to point my neatBeans project, so anytime I want to get a resource, I just need to put /resources/img?
thanks Norm

[nuzzle]

You could try this. Replace MyIcon.gif with the name of your image file. Place it where you have the rest of your program.

import java.awt.Image;
import java.awt.Toolkit;

Image image = Toolkit.getDefaultToolkit().getImage("MyIcon.gif");
frame.setIconImage(image);

[Norm]

Try this to see if you know what the absolute path is:
File file = new File("<Put absolute path here>minilogo.png");
then test if it exists

[keang]

Try the following code which gets the file using the path relative to the classes location:

URL logoURL = MyClass.class.getResource("resources/img.png");
ImageIcon appLogo  = new ImageIcon(logoURL);