decompress it, manage playback, and update its display to the user. A word processing program should always be ready to respond to keyboard and mouse events, no matter how busy it is reformatting text or updating the
The program must then figure out what the mouse click means and act accordingly.This chapter covers two different event models, or ways of handling events. In Java 1.0.2 and earlier, events were passed to all components that could possibly have an interest in them. Events themselves were ...
action() handles menu events. If the user selected Open, it displays the dialog box that selects a file. Close redraws the canvas with a null image; Quit exits the program. If any of these events occurred, action() returns true, indicating that the event was fully handled. If any ...
Note that as of this release, the next generation Java Plug-in is provided. The next generation Java Plug-in is the default for IE and Firefox 3. The original (old) Plug-in remains the default for Firefox 2. On Windows, you can switch between the old and new Plug-ins by using the...
The main events are: • Initialization and exit functions (init (), start (), stop() and destroy ()). • Repainting and resizing (paint ()). • Mouse events (mouseUp (), mouseDown() and mouseDrag ()). • Keyboard events (keyUp() and keyDown ()). View chapter Book 1997,...
Moves the mouse to the centre of a Java element and double clicks the left mouse button. Global input password into Java element Moves the mouse to centre of the Java element, focusses it, left clicks, and presses keys. Typically used with a password input that will not accept native UI...
By default, when the user closes a frame onscreen, the frame is hidden. Although invisible, the frame still exists and the program can make it visible again. If you want different behavior, then you need to either register a window listener that handles window-closing events, or you need ...
action, add, addComponentListener, addFocusListener, addHierarchyBoundsListener, addHierarchyListener, addInputMethodListener, addKeyListener, addMouseListener, addMouseMotionListener, addMouseWheelListener, bounds, checkImage, checkImage, coalesceEvents, contains, createImage, createImage, createVolatileImage, ...
The first number in the range of ids used for action events. ACTION_INFO - Static variable in class javax.management.MBeanOperationInfo Indicates that the operation is both read-like and write-like: it has an effect, and it also returns information from the MBean. ACTION_INSERT_AFTER - St...
updates to the ChartPanel class to support copying charts to the clipboard, panning and mouse-wheel zooming, and an overlay mechanism that supports crosshairs; enhancements to the auto-range calculation for axes, providing the ability to use subranges only and also to skip hidden series; updates...