Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available. Mouse-motion events notify when the user uses the mouse or a similar input device to move the onscreen cursor. For information on listening for other kinds of mouse events, such as clicks, see How to Write a Mouse Listener.
If an application requires the detection of both mouse events and mouse-motion events, use the MouseInputAdapter class, which implements the MouseInputListener a convenient interface that implements both the MouseListener and MouseMotionListener interfaces. The following demo code contains a mouse-motion listener.
How to Write a Mouse-Wheel Listener
This demo is exactly the same as the demo described in the How to Write a Mouse Listener section, except for substituting the MouseMotionListener interface for the MouseListener interface.
Additionally, MouseMotionEventDemo implements the mouseDragged and mouseMoved methods instead of the mouse listener methods, and displays coordinates instead of numbers of clicks. You can find the demo's code in MouseMotionEventDemo. The following code snippet from MouseMotionEventDemo implements the mouse-motion event handling:.
The SelectionDemo example, draws a rectangle illustrating the user's current dragging. To draw the rectangle, the application must implement an event handler for three kinds of mouse events: mouse presses, mouse drags, and mouse releases. To be informed of all these events, the handler must implement both the MouseListener and MouseMotionListener interfaces, and be registered as both a mouse listener and a mouse-motion listener. To avoid having to define empty methods, the handler doesn't implement either listener interface directly.
Instead, it extends MouseInputAdapteras the following code snippet shows. The MouseMotionListener Interface. Each mouse-motion event method has a single parameter — and it's not called MouseMotionEvent! Instead, each mouse-motion event method uses a MouseEvent argument. All rights reserved. Hide TOC. Writing Event Listeners. General Information about Writing Event Listeners.
Listeners Supported by Swing Components. Implementing Listeners for Commonly Handled Events. How to Write an Internal Frame Listener. How to Write a List Selection Listener.A simple utility that can be used to simulate user activity. Maybe you work from home and want to keep your remote session alive whilst you're away from your machine? Maybe you have a long running process that you want your machine to stay awake for?
Move Mouse can be deployed in whole host of situations to assist you.
Move your mouse pointer with Java
Actions can range from a simple mouse move or click every few seconds, to PowerShell scripts, schedules and blackout windows that allow you to build a highly customisable experience. This was great when it worked. Now it will not go into "pause mode".
It no longer detects mouse or keyboard activity. Please be patient whilst I investigate the cause of this.Java 19: Using a MouseListener to React to Mouse Clicks
Thank yo! This app has been fantastic. A publish today has fixed a semi-recent small bug where it wasn't detecting my activity and would run my configured mouse movement my laptop goes to sleep ever minute despite any Windows settings, hence this being a life saver. Before the fix was published, the hack was to put the app in silent mode which, incidentally, works even better for me!
Great job!! Thank you. The stats show that about 10, people use Move Mouse on a daily basis, although I get relatively few reviews. That is of course until it has an issue, then plenty are ready give one star reviews! This ver is crap It does not work right, it hangs with a red ring, you cant have it open with windows The old ver was awesome stars Again what have you done!!!
Not sure what the app does anymore. Too many configuration options, despite playing with those it doesn't work. This product is working very well. I wish you could add time range in sleep so user can use random time sleep between actions. Right now the only option is to pick fix time. Thank you for this beautiful app. This was always a great little program to keep my computer from logging off my work VPN due to inactivity, but inexplicably the developer felt it needed a useless, annoying animation every time you want to do anything with it.
So stupid and they still haven't gotten rid of it even though no one likes it. Doesn't allow me to uninstall. Appears on startup too.
Do you realise that I don't actually have control over how applications are installed or uninstalled from the Microsoft Store?Help to translate the content of this tutorial to your language! Complex events are made of simple ones, so in theory we could live without them.
In cases when a single action initiates multiple events, their order is fixed. On the teststand below all mouse events are logged, and if there is more than a 1 second delay between them they are separated by a horizontal ruler. Click-related events always have the which property, which allows to get the exact mouse button. It is not used for click and contextmenu events, because the former happens only on left-click, and the latter — only on right-click.
So if we want users of all operating systems to feel comfortable, then together with ctrlKey we should check metaKey. Keyboard combinations are good as an addition to the workflow. So that if the visitor has a keyboard — it works. For instance, if we have a window of the size x, and the mouse is in the left-upper corner, then clientX and clientY are 0.
And if the mouse is in the center, then clientX and clientY areno matter what place in the document it is, how far the document was scrolled.
They are similar to position:fixed. Document-relative coordinates pageXpageY are counted from the left-upper corner of the document, not the window. You can read more about coordinates in the chapter Coordinates. Double mouse click has a side-effect that may be disturbing in some interfaces: it selects the text. If one presses the left mouse button and, without releasing it, moves the mouse, that also makes the selection, often unwanted. There are multiple ways to prevent the selection, that you can read in the chapter Selection and Range.
In this particular case the most reasonable way is to prevent the browser action on mousedown. It prevents both these selections:. Please note: the text inside it is still selectable. However, the selection should start not on the text itself, but before or after it. If we want to disable selection to protect our page content from copy-pasting, then we can use another event: oncopy. Surely the user has access to HTML-source of the page, and can take the content from there, but not everyone knows how to do it.
Open a sandbox for the task. Open the solution in a sandbox. We want to make this open-source project available for people all around the world. Tutorial map. In the most common case, that happens when the right mouse button is pressed. Although, there are other ways to open a context menu, e. Complex events click Triggers after mousedown and then mouseup over the same element if the left mouse button was used.
Events order An action may trigger multiple events. Try double-click too.Instead the mouse motion events are dispatched to the first ancestors that has enabled mouse motion events.
This low-level event is generated by a component object for: Mouse Events a mouse button is pressed a mouse button is released a mouse button is clicked pressed and released the mouse cursor enters the unobscured part of component's geometry the mouse cursor exits the unobscured part of component's geometry Mouse Motion Events the mouse is moved the mouse is dragged A MouseEvent object is passed to every MouseListener or MouseAdapter object which is registered to receive the "interesting" mouse events using the component's addMouseListener method.
MouseAdapter objects implement the MouseListener interface. Each such listener object gets a MouseEvent containing the mouse event. Each such listener object gets a MouseEvent containing the mouse motion event.
When a mouse button is clicked, events are generated and sent to the registered MouseListener s. The state of modal keys can be retrieved using InputEvent. The button mask returned by InputEvent. To get the state of all buttons and modifier keys, use InputEvent. Nevertheless, ordinal numbers starting from 4 may be used as button numbers button ids.
Values obtained by the getMaskForButton button method may be used as button masks. In a multi-screen environment mouse drag events are delivered to the Component even if the mouse position is outside the bounds of the GraphicsConfiguration associated with that Component.
However, the reported position for mouse drag events in this case may differ from the actual mouse position: In a multi-screen environment without a virtual device: The reported coordinates for mouse drag events are clipped to fit within the bounds of the GraphicsConfiguration associated with the Component. In a multi-screen environment with a virtual device: The reported coordinates for mouse drag events are clipped to fit within the bounds of the virtual device associated with the Component.
Since: 1. Point getLocationOnScreen Returns the absolute x, y position of the event. Point getPoint Returns the x,y position of the event relative to the source component. String paramString Returns a parameter string identifying this event. This MouseEvent occurs when a mouse button is pressed and released.
This MouseEvent occurs when a mouse button is pushed down. This MouseEvent occurs when a mouse button is let up. This MouseEvent occurs when the mouse position changes. This MouseEvent occurs when the mouse cursor enters the unobscured part of component's geometry.
This MouseEvent occurs when the mouse cursor exits the unobscured part of component's geometry. This MouseEvent occurs when the mouse position changes while a mouse button is pressed. This is the only MouseWheelEvent. It occurs when a mouse equipped with a wheel has its wheel rotated. An invocation of the form MouseEvent source, id, when, modifiers, x, y, clickCount, popupTrigger, button behaves in exactly the same way as the invocation MouseEvent source, id, when, modifiers, x, y, xAbs, yAbs, clickCount, popupTrigger, button where xAbs and yAbs defines as source's location on screen plus relative coordinates x and y.
This method throws an IllegalArgumentException if source is null. Parameters: source - The Component that originated the event id - An integer indicating the type of event. For information on allowable values, see the class description for MouseEvent when - A long integer that gives the time the event occurred.
Passing negative or zero value is not recommended modifiers - The modifier keys down during event e. Zero value means that no modifiers were passed.Examples and practices described in this page don't take advantage of improvements introduced in later releases and might use technology no longer available. Mouse-wheel events notify when the wheel on the mouse rotates.
For information on listening to other mouse events, such as clicks, see How to Write a Mouse Listener. Not all mice have wheels and, in that case, mouse-wheel events are never generated.
There is no way to programmatically detect whether the mouse is equipped with a mouse wheel. Usually it is not necessary to implement a mouse-wheel listener because the mouse wheel is used primarily for scrolling.
Scroll panes automatically register mouse-wheel listeners that react to the mouse wheel appropriately. However, to create a custom component to be used inside a scroll pane you may need to customize its scrolling behavior — specifically you might need to set the unit and block increments.
For a text area, for example, scrolling one unit means scrolling by one line of text. A block increment typically scrolls an entire "page", or the size of the viewport. To generate mouse-wheel events, the cursor must be over the component registered to listen for mouse-wheel events. The amount that the mouse wheel scrolls is also platform dependent.
Both the type and amount of scrolling can be set via the mouse control panel for the platform. The output from MouseWheelEventDemo for a system that uses unit increments for its mouse wheel might look as follows:.
The scroll amount, returned by the getScrollAmount method, indicates how many units will be scrolled and always presents a positive number. The units to scroll, returned by the getUnitsToScroll method, are positive when scrolling down and negative when scrolling up. The number of pixels for the vertical unit is obtained from the vertical scroll bar using the getUnitIncrement method.
In the preceding example, rolling the mouse wheel one notch upward should result in the text area scrolling upward 48 pixels 3x For a system that uses block increments for mouse-wheel scrolling, for the same movement of the mouse wheel the output might look as follows:.
The vertical block increment is obtained from the vertical scroll bar using the getBlockIncrement method. In this case, rolling the mouse wheel upward one notch means that the text area should scroll upward pixels. Find the demo's code in the MouseWheelEventDemo.
The following code snippet is related to the mouse-wheel event handling:. The MouseWheelListener Interface. Although MouseWheelListener has only one method, it has the corresponding adapter class — MouseAdapter. This capability enables an application to have only one adapter class instance for the component to manage all types of events from the mouse pointer.
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I created a MouseMotionDetection class which role is just to detect that the user has moved the mouse anywhere on screen. For this purpose I created a new JFrame inside my class constructor with the screen size which is invisible, so basically I am observing mouse motion all over the screen.
In the code's current form, once this class is activated I only detect ONE mouse motion and nothing else, it stops working right after that. But, if I put the line which sets the frame backfround to 0f,0f,0f,0f transparent in comments and then activate, the whole screen becomes grey and I keep tracking all the mouse motions just as I desired I just can't see anything.
I really do not understand why this happens, haven't seen related issues around, nor in this related javadoc, which discusses MouseMotion events. Here is an alternative using the MouseInfo. This works if the components of the app. I believe that MouseEvents are not generated for transparent pixels. That is the MouseEvent is dispatched to the "visible" component under the frame. So to receive the event you can't use absolute transparency.
But you might be able to get away with using an alpha value of 1. I doubt you will notice a difference in the painting of the "transparent frame".
The following is not needed since you set the "contentPane" transparent when you add it to the frame:. Learn more. Detecting mouse movement on screen Ask Question. Asked 5 years, 7 months ago.
Active 5 years, 7 months ago. Viewed 4k times. But, I have a weird bug: In the code's current form, once this class is activated I only detect ONE mouse motion and nothing else, it stops working right after that. Jjang Jjang 8, 10 10 gold badges 39 39 silver badges 68 68 bronze badges.
Active Oldest Votes. A completely transparent frame does not receive mouse events. GeneralPath; import java. BufferedImage; import javax. RED ; g. Andrew Thompson Andrew Thompson k 33 33 gold badges silver badges bronze badges. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.
Email Required, but never shown. The Overflow Blog.Robot is part of java. Robot class is basically used to generate native system input events for the purposes of self- running demos, test automation and other applications where control over mouse and keyboard is used. Robot class generates events that can be used to control mouse, keyboard and can be used to take screenshots of the screen. In this article, we will implement Java Robot to move or drag the mouse to specified location.
Program 1 : Java program to move a mouse from the initial location to a specified location. If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute. See your article appearing on the GeeksforGeeks main page and help other Geeks. Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.
Writing code in comment? Please use ide. Automate mouse events using Java Robot Class Which Java libraries are useful for competitive programming? How to iterate over a TreeMap in Java? Hello World Program : First program while learning Programming. Methods used : mouseMove int x, int y : move the mouse to a specified location of screen keyPress int k : presses a given key with a specified keycode keyRelease int k : releases a given key with a specified keycode mousePress int b : presses one or more mouse buttons.
Label l, l1. Using predefined class name as Class or Variable name in Java. Check out this Author's contributed articles. Load Comments.