Java Tutorial/SWT/WIN32
Содержание
- 1 17. Add System Setting Change Listener
- 2 17. Detect a system settings change
- 3 17. Embed Word in an applet (win32 only)
- 4 17. How to access About, Preferences and Quit menus on carbon.
- 5 17. Invoke an external batch file
- 6 17. Invoke the system text editor on autoexec.bat
- 7 17. Load System File Icon
- 8 17. OLE and ActiveX: browse the typelibinfo for a program id (win32 only)
- 9 17. OLE and ActiveX: get events from IE control (win32 only)
- 10 17. Using System Icon Image
17. Add System Setting Change Listener
<source lang="java">
import org.eclipse.swt.SWT; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; public class SystemSettingChangeListener {
public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
display.addListener(SWT.Settings, new Listener() {
public void handleEvent(Event event) {
System.out.println("Setting changed");
}
});
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
}</source>
17. Detect a system settings change
<source lang="java">
/*******************************************************************************
* Copyright (c) 2000, 2006 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/
/*
* example snippet: detect a system settings change * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ * * @since 3.2 */
import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.layout.GridData; import org.eclipse.swt.layout.GridLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Table; import org.eclipse.swt.widgets.TableColumn; import org.eclipse.swt.widgets.TableItem; public class DetectSystemSettingChange {
public static void main(String[] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setText("The SWT.Settings Event");
shell.setLayout(new GridLayout());
Label label = new Label(shell, SWT.WRAP);
label.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false));
label.setText("Change a system setting and the table below will be updated.");
final Table table = new Table(shell, SWT.BORDER);
table.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
TableColumn column = new TableColumn(table, SWT.NONE);
column = new TableColumn(table, SWT.NONE);
column.setWidth(150);
column = new TableColumn(table, SWT.NONE);
for (int i = 0; i < colorIds.length; i++) {
TableItem item = new TableItem(table, SWT.NONE);
Color color = display.getSystemColor(colorIds[i]);
item.setText(0, colorNames[i]);
item.setBackground(1, color);
item.setText(2, color.toString());
}
TableColumn[] columns = table.getColumns();
columns[0].pack();
columns[2].pack();
display.addListener(SWT.Settings, new Listener() {
public void handleEvent(Event event) {
for (int i = 0; i < colorIds.length; i++) {
Color color = display.getSystemColor(colorIds[i]);
TableItem item = table.getItem(i);
item.setBackground(1, color);
}
TableColumn[] columns = table.getColumns();
columns[0].pack();
columns[2].pack();
}
});
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
display.dispose();
}
static int[] colorIds = new int[] { SWT.COLOR_INFO_BACKGROUND, SWT.COLOR_INFO_FOREGROUND,
SWT.COLOR_LIST_BACKGROUND, SWT.COLOR_LIST_FOREGROUND, SWT.COLOR_LIST_SELECTION,
SWT.COLOR_LIST_SELECTION_TEXT, SWT.COLOR_TITLE_BACKGROUND,
SWT.COLOR_TITLE_BACKGROUND_GRADIENT, SWT.COLOR_TITLE_FOREGROUND,
SWT.COLOR_TITLE_INACTIVE_BACKGROUND, SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT,
SWT.COLOR_TITLE_INACTIVE_FOREGROUND, SWT.COLOR_WIDGET_BACKGROUND, SWT.COLOR_WIDGET_BORDER,
SWT.COLOR_WIDGET_DARK_SHADOW, SWT.COLOR_WIDGET_FOREGROUND, SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW,
SWT.COLOR_WIDGET_LIGHT_SHADOW, SWT.COLOR_WIDGET_NORMAL_SHADOW, };
static String[] colorNames = new String[] { "SWT.COLOR_INFO_BACKGROUND",
"SWT.COLOR_INFO_FOREGROUND", "SWT.COLOR_LIST_BACKGROUND", "SWT.COLOR_LIST_FOREGROUND",
"SWT.COLOR_LIST_SELECTION", "SWT.COLOR_LIST_SELECTION_TEXT", "SWT.COLOR_TITLE_BACKGROUND",
"SWT.COLOR_TITLE_BACKGROUND_GRADIENT", "SWT.COLOR_TITLE_FOREGROUND",
"SWT.COLOR_TITLE_INACTIVE_BACKGROUND", "SWT.COLOR_TITLE_INACTIVE_BACKGROUND_GRADIENT",
"SWT.COLOR_TITLE_INACTIVE_FOREGROUND", "SWT.COLOR_WIDGET_BACKGROUND",
"SWT.COLOR_WIDGET_BORDER", "SWT.COLOR_WIDGET_DARK_SHADOW", "SWT.COLOR_WIDGET_FOREGROUND",
"SWT.COLOR_WIDGET_HIGHLIGHT_SHADOW", "SWT.COLOR_WIDGET_LIGHT_SHADOW",
"SWT.COLOR_WIDGET_NORMAL_SHADOW", };
}</source>
17. Embed Word in an applet (win32 only)
<source lang="java">
/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/
//package org.eclipse.swt.snippets; /*
* example snippet: Embed Word in an applet (win32 only) * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ * * @since 3.0 */
import java.applet.Applet; public class MainClass extends Applet {
org.eclipse.swt.widgets.Display display;
org.eclipse.swt.widgets.Shell swtParent;
java.awt.Canvas awtParent;
public void init() {
Thread thread = new Thread(new Runnable() {
public void run() {
setLayout(new java.awt.GridLayout(1, 1));
awtParent = new java.awt.Canvas();
add(awtParent);
display = new org.eclipse.swt.widgets.Display();
swtParent = org.eclipse.swt.awt.SWT_AWT.new_Shell(display, awtParent);
swtParent.setLayout(new org.eclipse.swt.layout.FillLayout());
org.eclipse.swt.ole.win32.OleFrame frame = new org.eclipse.swt.ole.win32.OleFrame(
swtParent, org.eclipse.swt.SWT.NONE);
org.eclipse.swt.ole.win32.OleClientSite site;
try {
site = new org.eclipse.swt.ole.win32.OleClientSite(frame, org.eclipse.swt.SWT.NONE,
"Word.Document");
} catch (org.eclipse.swt.SWTException e) {
String str = "Create OleClientSite Error" + e.toString();
System.out.println(str);
return;
}
setSize(500, 500);
validate();
site.doVerb(org.eclipse.swt.ole.win32.OLE.OLEIVERB_SHOW);
while (swtParent != null && !swtParent.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
}
});
thread.start();
}
public void stop() {
if (display != null && !display.isDisposed()) {
display.syncExec(new Runnable() {
public void run() {
if (swtParent != null && !swtParent.isDisposed())
swtParent.dispose();
swtParent = null;
display.dispose();
display = null;
}
});
remove(awtParent);
awtParent = null;
}
}
}</source>
<source lang="java">
/*******************************************************************************
* Copyright (c) 2000, 2005 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/
/*
* How to access About, Preferences and Quit menus on carbon. * NOTE: This snippet uses internal SWT packages that are * subject to change without notice. * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ */
import org.eclipse.swt.internal.*; import org.eclipse.swt.internal.carbon.*; import org.eclipse.swt.*; import org.eclipse.swt.widgets.*; public class Snippet178 {
private static final int kHICommandPreferences = ("p" << 24) + ("r" << 16) + ("e" << 8) + "f";
private static final int kHICommandAbout = ("a" << 24) + ("b" << 16) + ("o" << 8) + "u";
private static final int kHICommandServices = ("s" << 24) + ("e" << 16) + ("r" << 8) + "v";
public static void main(String[] arg) {
Display.setAppName("AppMenu"); // sets name in Dock
Display display = new Display();
hookApplicationMenu(display, "About AppMenu");
Shell shell = new Shell(display);
shell.setText("Main Window");
shell.open();
while (!shell.isDisposed())
if (!display.readAndDispatch())
display.sleep();
display.dispose();
}
static void hookApplicationMenu(Display display, final String aboutName) {
// Callback target
Object target = new Object() {
int commandProc(int nextHandler, int theEvent, int userData) {
if (OS.GetEventKind(theEvent) == OS.kEventProcessCommand) {
HICommand command = new HICommand();
OS.GetEventParameter(theEvent, OS.kEventParamDirectObject, OS.typeHICommand, null,
HICommand.sizeof, null, command);
switch (command.rumandID) {
case kHICommandPreferences:
return handleCommand("Preferences"); //$NON-NLS-1$
case kHICommandAbout:
return handleCommand(aboutName);
default:
break;
}
}
return OS.eventNotHandledErr;
}
int handleCommand(String command) {
Shell shell = new Shell();
MessageBox preferences = new MessageBox(shell, SWT.ICON_WARNING);
preferences.setText(command);
preferences.open();
shell.dispose();
return OS.noErr;
}
};
final Callback commandCallback = new Callback(target, "commandProc", 3); //$NON-NLS-1$
int commandProc = commandCallback.getAddress();
if (commandProc == 0) {
commandCallback.dispose();
return; // give up
}
// Install event handler for commands
int[] mask = new int[] { OS.kEventClassCommand, OS.kEventProcessCommand };
OS.InstallEventHandler(OS.GetApplicationEventTarget(), commandProc, mask.length / 2, mask, 0,
null);
// create About ... menu command
int[] outMenu = new int[1];
short[] outIndex = new short[1];
if (OS.GetIndMenuItemWithCommandID(0, kHICommandPreferences, 1, outMenu, outIndex) == OS.noErr
&& outMenu[0] != 0) {
int menu = outMenu[0];
int l = aboutName.length();
char buffer[] = new char[l];
aboutName.getChars(0, l, buffer, 0);
int str = OS.CFStringCreateWithCharacters(OS.kCFAllocatorDefault, buffer, l);
OS.InsertMenuItemTextWithCFString(menu, str, (short) 0, 0, kHICommandAbout);
OS.CFRelease(str);
// add separator between About & Preferences
OS.InsertMenuItemTextWithCFString(menu, 0, (short) 1, OS.kMenuItemAttrSeparator, 0);
// enable pref menu
OS.EnableMenuCommand(menu, kHICommandPreferences);
// disable services menu
OS.DisableMenuCommand(menu, kHICommandServices);
}
// schedule disposal of callback object
display.disposeExec(new Runnable() {
public void run() {
commandCallback.dispose();
}
});
}
}</source>
17. Invoke an external batch file
<source lang="java">
import org.eclipse.swt.program.Program; import org.eclipse.swt.widgets.Display; public class ExternalBatchFileInvoke {
public static void main(String[] args) {
Display display = new Display();
Program.launch("c:\\cygwin\\cygwin.bat");
display.dispose();
}
}</source>
17. Invoke the system text editor on autoexec.bat
<source lang="java">
import org.eclipse.swt.program.Program; import org.eclipse.swt.widgets.Display; public class InvokeSystemTextEditor {
public static void main(String[] args) {
Display display = new Display();
Program p = Program.findProgram(".txt");
if (p != null)
p.execute("c:\\autoexec.bat"); // Windows-specific filename
display.dispose();
}
}</source>
17. Load System File Icon
<source lang="java">
import org.eclipse.swt.SWT; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.ImageData; import org.eclipse.swt.layout.RowLayout; import org.eclipse.swt.program.Program; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; public class SystemFileIconLoad {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new RowLayout());
Label label = new Label(shell, SWT.NONE);
Image image = null;
Program p = Program.findProgram(".txt");
ImageData data = p.getImageData();
image = new Image(display, data);
label.setImage(image);
p = Program.findProgram(".bmp");
data = p.getImageData();
image = new Image(display, data);
label = new Label(shell, SWT.NONE);
label.setImage(image);
p = Program.findProgram(".doc");
data = p.getImageData();
image = new Image(display, data);
label = new Label(shell, SWT.NONE);
label.setImage(image);
label.pack();
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
if (image != null)
image.dispose();
display.dispose();
}
}</source>
17. OLE and ActiveX: browse the typelibinfo for a program id (win32 only)
<source lang="java">
/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/
//package org.eclipse.swt.snippets; /*
* OLE and ActiveX example snippet: browse the typelibinfo for a program id (win32 only) * NOTE: This snippet uses internal SWT packages that are * subject to change without notice. * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ */
import org.eclipse.swt.SWT; import org.eclipse.swt.SWTException; import org.eclipse.swt.internal.ole.win32.TYPEATTR; import org.eclipse.swt.ole.win32.OLE; import org.eclipse.swt.ole.win32.OleAutomation; import org.eclipse.swt.ole.win32.OleControlSite; import org.eclipse.swt.ole.win32.OleFrame; import org.eclipse.swt.ole.win32.OleFunctionDescription; import org.eclipse.swt.ole.win32.OlePropertyDescription; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class OLEActiveXTypeLib {
public static void main(String[] args) {
if (args.length == 0) {
System.out.println("Usage: java Main <program id>");
return;
}
String progID = args[0];
Display display = new Display();
Shell shell = new Shell(display);
OleFrame frame = new OleFrame(shell, SWT.NONE);
OleControlSite site = null;
OleAutomation auto = null;
try {
site = new OleControlSite(frame, SWT.NONE, progID);
auto = new OleAutomation(site);
} catch (SWTException ex) {
System.out.println("Unable to open type library for " + progID);
return;
}
printTypeInfo(auto);
auto.dispose();
shell.dispose();
display.dispose();
}
private static void printTypeInfo(OleAutomation auto) {
TYPEATTR typeattr = auto.getTypeInfoAttributes();
if (typeattr != null) {
if (typeattr.cFuncs > 0)
System.out.println("Functions :\n");
for (int i = 0; i < typeattr.cFuncs; i++) {
OleFunctionDescription data = auto.getFunctionDescription(i);
String argList = "";
int firstOptionalArgIndex = data.args.length - data.optionalArgCount;
for (int j = 0; j < data.args.length; j++) {
argList += "[";
if (j >= firstOptionalArgIndex)
argList += "optional, ";
argList += getDirection(data.args[j].flags) + "] " + getTypeName(data.args[j].type) + " "
+ data.args[j].name;
if (j < data.args.length - 1)
argList += ", ";
}
System.out.println(getInvokeKind(data.invokeKind) + " (id = " + data.id + ") : "
+ "\n\tSignature : " + getTypeName(data.returnType) + " " + data.name + "(" + argList
+ ")" + "\n\tDescription : " + data.documentation + "\n\tHelp File : "
+ data.helpFile + "\n");
}
if (typeattr.cVars > 0)
System.out.println("\n\nVariables :\n");
for (int i = 0; i < typeattr.cVars; i++) {
OlePropertyDescription data = auto.getPropertyDescription(i);
System.out.println("PROPERTY (id = " + data.id + ") :" + "\n\tName : " + data.name
+ "\n\tType : " + getTypeName(data.type) + "\n");
}
}
}
private static String getTypeName(int type) {
switch (type) {
case OLE.VT_BOOL:
return "boolean";
case OLE.VT_R4:
return "float";
case OLE.VT_R8:
return "double";
case OLE.VT_I4:
return "int";
case OLE.VT_DISPATCH:
return "IDispatch";
case OLE.VT_UNKNOWN:
return "IUnknown";
case OLE.VT_I2:
return "short";
case OLE.VT_BSTR:
return "String";
case OLE.VT_VARIANT:
return "Variant";
case OLE.VT_CY:
return "Currency";
case OLE.VT_DATE:
return "Date";
case OLE.VT_UI1:
return "unsigned char";
case OLE.VT_UI4:
return "unsigned int";
case OLE.VT_USERDEFINED:
return "UserDefined";
case OLE.VT_HRESULT:
return "int";
case OLE.VT_VOID:
return "void";
case OLE.VT_BYREF | OLE.VT_BOOL:
return "boolean *";
case OLE.VT_BYREF | OLE.VT_R4:
return "float *";
case OLE.VT_BYREF | OLE.VT_R8:
return "double *";
case OLE.VT_BYREF | OLE.VT_I4:
return "int *";
case OLE.VT_BYREF | OLE.VT_DISPATCH:
return "IDispatch *";
case OLE.VT_BYREF | OLE.VT_UNKNOWN:
return "IUnknown *";
case OLE.VT_BYREF | OLE.VT_I2:
return "short *";
case OLE.VT_BYREF | OLE.VT_BSTR:
return "String *";
case OLE.VT_BYREF | OLE.VT_VARIANT:
return "Variant *";
case OLE.VT_BYREF | OLE.VT_CY:
return "Currency *";
case OLE.VT_BYREF | OLE.VT_DATE:
return "Date *";
case OLE.VT_BYREF | OLE.VT_UI1:
return "unsigned char *";
case OLE.VT_BYREF | OLE.VT_UI4:
return "unsigned int *";
case OLE.VT_BYREF | OLE.VT_USERDEFINED:
return "UserDefined *";
}
return "unknown " + type;
}
private static String getDirection(int direction) {
String dirString = "";
boolean comma = false;
if ((direction & OLE.IDLFLAG_FIN) != 0) {
dirString += "in";
comma = true;
}
if ((direction & OLE.IDLFLAG_FOUT) != 0) {
if (comma)
dirString += ", ";
dirString += "out";
comma = true;
}
if ((direction & OLE.IDLFLAG_FLCID) != 0) {
if (comma)
dirString += ", ";
dirString += "lcid";
comma = true;
}
if ((direction & OLE.IDLFLAG_FRETVAL) != 0) {
if (comma)
dirString += ", ";
dirString += "retval";
}
return dirString;
}
private static String getInvokeKind(int invKind) {
switch (invKind) {
case OLE.INVOKE_FUNC:
return "METHOD";
case OLE.INVOKE_PROPERTYGET:
return "PROPERTY GET";
case OLE.INVOKE_PROPERTYPUT:
return "PROPERTY PUT";
case OLE.INVOKE_PROPERTYPUTREF:
return "PROPERTY PUT BY REF";
}
return "unknown " + invKind;
}
}</source>
17. OLE and ActiveX: get events from IE control (win32 only)
<source lang="java">
/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * IBM Corporation - initial API and implementation *******************************************************************************/
//package org.eclipse.swt.snippets; /*
* OLE and ActiveX example snippet: get events from IE control (win32 only) * NOTE: This snippet uses internal SWT packages that are * subject to change without notice. * * For a list of all SWT example snippets see * http://www.eclipse.org/swt/snippets/ */
import org.eclipse.swt.SWT; import org.eclipse.swt.SWTError; import org.eclipse.swt.internal.ole.win32.ru; import org.eclipse.swt.internal.ole.win32.ruObject; import org.eclipse.swt.internal.ole.win32.GUID; import org.eclipse.swt.internal.ole.win32.IDispatch; import org.eclipse.swt.layout.FillLayout; import org.eclipse.swt.ole.win32.OLE; import org.eclipse.swt.ole.win32.OleAutomation; import org.eclipse.swt.ole.win32.OleControlSite; import org.eclipse.swt.ole.win32.OleEvent; import org.eclipse.swt.ole.win32.OleFrame; import org.eclipse.swt.ole.win32.OleListener; import org.eclipse.swt.ole.win32.Variant; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Shell; public class GetEventsFromIE {
public static void main(String[] args) {
final Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
OleControlSite controlSite;
try {
OleFrame frame = new OleFrame(shell, SWT.NONE);
controlSite = new OleControlSite(frame, SWT.NONE, "Shell.Explorer");
controlSite.doVerb(OLE.OLEIVERB_INPLACEACTIVATE);
} catch (SWTError e) {
System.out.println("Unable to open activeX control");
return;
}
shell.open();
// IWebBrowser
final OleAutomation webBrowser = new OleAutomation(controlSite);
// When a new document is loaded, access the document object for the new
// page.
int DownloadComplete = 104;
controlSite.addEventListener(DownloadComplete, new OleListener() {
public void handleEvent(OleEvent event) {
int[] htmlDocumentID = webBrowser.getIDsOfNames(new String[] { "Document" });
if (htmlDocumentID == null)
return;
Variant pVarResult = webBrowser.getProperty(htmlDocumentID[0]);
if (pVarResult == null || pVarResult.getType() == 0)
return;
// IHTMLDocument2
OleAutomation htmlDocument = pVarResult.getAutomation();
// Request to be notified of click, double click and key down events
EventDispatch myDispatch = new EventDispatch(EventDispatch.onclick);
IDispatch idispatch = new IDispatch(myDispatch.getAddress());
Variant dispatch = new Variant(idispatch);
htmlDocument.setProperty(EventDispatch.onclick, dispatch);
myDispatch = new EventDispatch(EventDispatch.ondblclick);
idispatch = new IDispatch(myDispatch.getAddress());
dispatch = new Variant(idispatch);
htmlDocument.setProperty(EventDispatch.ondblclick, dispatch);
myDispatch = new EventDispatch(EventDispatch.onkeydown);
idispatch = new IDispatch(myDispatch.getAddress());
dispatch = new Variant(idispatch);
htmlDocument.setProperty(EventDispatch.onkeydown, dispatch);
// Remember to release OleAutomation Object
htmlDocument.dispose();
}
});
// Navigate to a web site
int[] ids = webBrowser.getIDsOfNames(new String[] { "Navigate", "URL" });
Variant[] rgvarg = new Variant[] { new Variant("http://www.google.ru") };
int[] rgdispidNamedArgs = new int[] { ids[1] };
webBrowser.invoke(ids[0], rgvarg, rgdispidNamedArgs);
while (!shell.isDisposed()) {
if (!display.readAndDispatch())
display.sleep();
}
// Remember to release OleAutomation Object
webBrowser.dispose();
display.dispose();
}
} // EventDispatch implements a simple IDispatch interface which will be called // when the event is fired. class EventDispatch {
private COMObject iDispatch;
private int refCount = 0;
private int eventID;
final static int onhelp = 0x8001177d;
final static int onclick = 0x80011778;
final static int ondblclick = 0x80011779;
final static int onkeyup = 0x80011776;
final static int onkeydown = 0x80011775;
final static int onkeypress = 0x80011777;
final static int onmouseup = 0x80011773;
final static int onmousedown = 0x80011772;
final static int onmousemove = 0x80011774;
final static int onmouseout = 0x80011771;
final static int onmouseover = 0x80011770;
final static int onreadystatechange = 0x80011789;
final static int onafterupdate = 0x80011786;
final static int onrowexit = 0x80011782;
final static int onrowenter = 0x80011783;
final static int ondragstart = 0x80011793;
final static int onselectstart = 0x80011795;
EventDispatch(int eventID) {
this.eventID = eventID;
createCOMInterfaces();
}
int getAddress() {
return iDispatch.getAddress();
}
private void createCOMInterfaces() {
iDispatch = new COMObject(new int[] { 2, 0, 0, 1, 3, 4, 8 }) {
public int method0(int[] args) {
return QueryInterface(args[0], args[1]);
}
public int method1(int[] args) {
return AddRef();
}
public int method2(int[] args) {
return Release();
}
// method3 GetTypeInfoCount - not implemented
// method4 GetTypeInfo - not implemented
// method5 GetIDsOfNames - not implemented
public int method6(int[] args) {
return Invoke(args[0], args[1], args[2], args[3], args[4], args[5], args[6], args[7]);
}
};
}
private void disposeCOMInterfaces() {
if (iDispatch != null)
iDispatch.dispose();
iDispatch = null;
}
private int AddRef() {
refCount++;
return refCount;
}
private int Invoke(int dispIdMember, int riid, int lcid, int dwFlags, int pDispParams,
int pVarResult, int pExcepInfo, int pArgErr) {
switch (eventID) {
case onhelp:
System.out.println("onhelp");
break;
case onclick:
System.out.println("onclick");
break;
case ondblclick:
System.out.println("ondblclick");
break;
case onkeyup:
System.out.println("onkeyup");
break;
case onkeydown:
System.out.println("onkeydown");
break;
case onkeypress:
System.out.println("onkeypress");
break;
case onmouseup:
System.out.println("onmouseup");
break;
case onmousedown:
System.out.println("onmousedown");
break;
case onmousemove:
System.out.println("onmousemove");
break;
case onmouseout:
System.out.println("onmouseout");
break;
case onmouseover:
System.out.println("onmouseover");
break;
case onreadystatechange:
System.out.println("onreadystatechange");
break;
case onafterupdate:
System.out.println("onafterupdate");
break;
case onrowexit:
System.out.println("onrowexit");
break;
case onrowenter:
System.out.println("onrowenter");
break;
case ondragstart:
System.out.println("ondragstart");
break;
case onselectstart:
System.out.println("onselectstart");
break;
}
return COM.S_OK;
}
private int QueryInterface(int riid, int ppvObject) {
if (riid == 0 || ppvObject == 0)
return COM.E_INVALIDARG;
GUID guid = new GUID();
COM.MoveMemory(guid, riid, GUID.sizeof);
if (COM.IsEqualGUID(guid, COM.IIDIUnknown) || COM.IsEqualGUID(guid, COM.IIDIDispatch)) {
COM.MoveMemory(ppvObject, new int[] { iDispatch.getAddress() }, 4);
AddRef();
return COM.S_OK;
}
COM.MoveMemory(ppvObject, new int[] { 0 }, 4);
return COM.E_NOINTERFACE;
}
int Release() {
refCount--;
if (refCount == 0) {
disposeCOMInterfaces();
}
return refCount;
}
}</source>
17. Using System Icon Image
<source lang="java">
import org.eclipse.swt.SWT; import org.eclipse.swt.layout.RowLayout; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Label; import org.eclipse.swt.widgets.Shell; public class SystemIconImage {
public static void main(String[] args) {
Display display = new Display();
Shell shell = new Shell(display);
shell.setLayout(new RowLayout());
Label label = new Label (shell, SWT.NONE);
label.setImage(display.getSystemImage(SWT.ICON_ERROR));
label = new Label (shell, SWT.NONE);
label.setText("SWT.ICON_ERROR");
label = new Label (shell, SWT.NONE);
label.setImage(display.getSystemImage(SWT.ICON_INFORMATION));
label = new Label (shell, SWT.NONE);
label.setText("SWT.ICON_INFORMATION");
label = new Label (shell, SWT.NONE);
label.setImage(display.getSystemImage(SWT.ICON_WARNING));
label = new Label (shell, SWT.NONE);
label.setText("SWT.ICON_WARNING");
label = new Label (shell, SWT.NONE);
label.setImage(display.getSystemImage(SWT.ICON_QUESTION));
label = new Label (shell, SWT.NONE);
label.setText("SWT.ICON_QUESTION");
shell.setSize(400, 350);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
}</source>
