How to set custom size for cursor in swing?

Question

I am using the below code to set a custom cursor for JPanel, but when i run the code its enlarging the image which i set for cursor. Is there a way to set a userdefined cursor size ?

Toolkit toolkit = Toolkit.getDefaultToolkit();
BufferedImage erasor=new BufferedImage(10,10, BufferedImage.TYPE_INT_RGB);
Graphics2D g2d=(Graphics2D) erasor.createGraphics();
g2d.setPaint(Color.red);
g2d.drawRect(e.getX(),e.getY() ,10, 10);
toolkit.getBestCursorSize(10, 10);
Cursor mcursor=toolkit.createCustomCursor(erasor, new Point(10,10), "Eraser");
setCursor(mcursor);

Answer 1

An easy solution would be to use an image of "standard" size and transparent background.

Answer 2

Windows seem to only allow cursors of size 32x32 pixels so if you want another size you have to work around it.

To get a smaller size use createCustomCursor with a 32x32 image where the unwanted pixels are transparent. If you use BufferedImage.TYPE_INT_ARGB you can make pixels transparent.

To make a larger cursor I beleive this will work:

Create a custom cursor that is completly transparent.

Use a mouseMotionListener to get the position of the cursor.

Draw your cursor image at the position of the real (transparent) cursor.