| java.lang.Object | |
| ↳ | java.awt.MouseInfo |
Class Overview
MouseInfo provides methods for getting information about the mouse,
such as mouse pointer location and the number of mouse buttons.
Summary
| Public Methods | |||||||||||
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Returns the number of buttons on the mouse.
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Returns a
PointerInfo instance that represents the current
location of the mouse pointer. | |||||||||||
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Inherited Methods | |||||||||||
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From class
java.lang.Object
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Public Methods
public static int getNumberOfButtons ()
Returns the number of buttons on the mouse.
On systems without a mouse, returns -1.
Returns
- number of buttons on the mouse
Throws
| HeadlessException | if GraphicsEnvironment.isHeadless() returns true |
|---|
public static PointerInfo getPointerInfo ()
Returns a PointerInfo instance that represents the current
location of the mouse pointer.
The GraphicsDevice stored in this PointerInfo
contains the mouse pointer. The coordinate system used for the mouse position
depends on whether or not the GraphicsDevice is part of a virtual
screen device.
For virtual screen devices, the coordinates are given in the virtual
coordinate system, otherwise they are returned in the coordinate system
of the GraphicsDevice. See GraphicsConfiguration
for more information about the virtual screen devices.
On systems without a mouse, returns null.
If there is a security manager, its checkPermission method
is called with an AWTPermission("watchMousePointer")
permission before creating and returning a PointerInfo
object. This may result in a SecurityException.
Returns
- location of the mouse pointer
Throws
| HeadlessException | if GraphicsEnvironment.isHeadless() returns true |
|---|---|
| SecurityException | if a security manager exists and its
checkPermission method doesn't allow the operation |