Is there anyway to hide cursor other than using transparent gif image?
+4
A:
It appears that the Cursor
class does not have a "blank" cursor to begin with, so one could define a new "blank" cursor using the Toolkit.createCustomCursor
method.
Here's one way I've tried which seems to work:
// Transparent 16 x 16 pixel cursor image.
BufferedImage cursorImg = new BufferedImage(16, 16, BufferedImage.TYPE_INT_ARGB);
// Create a new blank cursor.
Cursor blankCursor = Toolkit.getDefaultToolkit().createCustomCursor(
cursorImg, new Point(0, 0), "blank cursor");
// Set the blank cursor to the JFrame.
mainJFrame.getContentPane().setCursor(blankCursor);
Edit
Regarding the comment about everything inside the JFrame
ending up without a cursor, it seems that the Component
s which are contained in the JFrame
will end up inheriting the cursor of the container (the JFrame
), so if it is a requirement to have a certain Component
have the cursor appear, one would have to manually set the desired cursor.
For example, if there is a JPanel
contained in the JFrame
, then one could set the cursor of that JPanel
to the system's default using the Cursor.getDefaultCursor
method:
JPanel p = ...
// Sets the JPanel's cursor to the system default.
p.setCursor(Cursor.getDefaultCursor());
coobird
2009-12-31 05:55:08
Thank you very much for the answer Coobird. But I have another problem. I created JFrame which contains JPanel, which size is smaller than the JFrame. I only want the cursor disappears when the mouse pointed outside the JPanel.Is that means that when I set the cursor in the main JFrame as invisible, the cursor will disappear completely on the screen?
Jessy
2009-12-31 06:11:34
Hi Jessy, I've added the part about how to set the JPanel to the system default in my answer.
coobird
2009-12-31 06:20:52
Thank you very much CooBird...It works!! :-) you made my day...
Jessy
2009-12-31 06:23:43
You're welcome :)
coobird
2009-12-31 06:31:41