в 17:44, 31 мая 2010

2010-05-31T17:44:26Z

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2010-05-31T15:20:37Z

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== Causes the system hardware to emit a short sound if it supports this capability ==



<source lang="java">
import org.eclipse.swt.widgets.Display;
public class MainClass {
static Display display = new Display();
public static void main(String[] args) {
display.beep();
}
}</source>



== Get color for the given constant ==



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.widgets.Display;
public class MainClass {
static Display display = new Display();
public static void main(String[] args) {
Color col = display.getSystemColor(SWT.COLOR_BLUE);
}
}</source>



The returned color should not be freed because it was allocated and managed by the system.

== Get the bounds and client area of a display ==



<source lang="java">
import org.eclipse.swt.widgets.Display;
public class DisplayBounds{
public static void main(String[] args) {
Display display = new Display();
System.out.println("Display Bounds=" + display.getBounds() + " Display ClientArea="
+ display.getClientArea());
display.dispose();
}
}</source>



== Get the longest duration in milliseconds between two mouse button clicks that will be deemed a double-click. ==



<source lang="java">
import org.eclipse.swt.widgets.Display;
public class MainClass {
static Display display = new Display();
public static void main(String[] args) {
System.out.println(display.getDoubleClickTime());
}
}</source>



== Returns the button dismissal alignment ==

Alignment can be either SWT.LEFT or SWT.RIGHT.
The button dismissal alignment is used when positioning the default dismissal button for a dialog.
For example, if alignement is LEFT, the button order should be OK, CANCEL.



<source lang="java">
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
public class MainClass {
static Display display = new Display();
public static void main(String[] args) {
System.out.println(display.getDismissalAlignment() == SWT.LEFT);
System.out.println(display.getDismissalAlignment() == SWT.RIGHT);
}
}</source>



== Returns the maximum allowed depth of icons on the display. ==



<source lang="java">
import org.eclipse.swt.widgets.Display;
public class MainClass {
static Display display = new Display();
public static void main(String[] args) {
System.out.println(display.getIconDepth());
}
}</source>



== SWT Event Handling with Displays ==

The readAndDispatch reads events from the operating system"s event queue and then dispatches them appropriately.



<source lang="java">
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
public class SWTEventHandlingDisplay {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setText("Hello, world!");
shell.open();
while(! shell.isDisposed()) { // Event loop.
if(! display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>



== To find the primary monitor, call getPrimaryMonitor. ==

Get all the monitors attached to the device, call Display.getMonitors()



<source lang="java">
import org.eclipse.swt.widgets.Display;
public class MainClass {
static Display display = new Display();
public static void main(String[] args) {
System.out.println(display.getPrimaryMonitor().getClientArea());
}
}</source>



== Using Display Class ==

The primary functions of Display instances are as follows:
<OL><LI>The Display object is the connection between the SWT and the underlying windowing system.</LI><LI>Implementing the SWT event loop in terms of a platform event model</LI><LI>Providing methods for accessing information about the operating system</LI><LI>Managing operating system resources used by SWT</LI><LI>Only a single Display instance is required in most SWT-based applications.</LI><LI>The thread that creates the Display object is the event-loop thread (user-interface thread).</LI></OL>

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в 17:44, 31 мая 2010

Admin: 1 версия