how to fixed this error for my code - syntax-error

'import java.awt.*;'
'import java.awt.event.*;'
'public void close(){'
'WindowEvent winClosingEvent = new WindowEvent(this,WindowEvent.WINDOW_CLOSING);'
'Toolkit.getDefaultToolkit().getSystemEventQueue().postEvent(winClosingEvent);
}'

I think this will help you out......
public void close() {
Window win = new Window(new Frame());
WindowEvent winClosingEvent = new WindowEvent(win, WindowEvent.WINDOW_CLOSED);
Toolkit.getDefaultToolkit().getSystemEventQueue().postEvent(winClosingEvent);
}

Related

Is it possible to cancel a call to speakTextAsync?

I'm using the javascript SDK of Microsoft Speech Synthesizer and calling speakTextAsync to convert text to speech.
This works perfectly, but sometimes the text is long and I want to be able to cancel in the middle, but I cannot find any way to do this. The documentation doesn't seem to indicate any way to cancel. The name speakTextAsync suggests that it returns a Task that could be cancelled, but in fact the method returns undefined, and I can't find any other way to do this. How can this be done?
Seems there is no way to stop it when it is speaking. But actually,as a workaround, you can just download the audio file and play the file yourself so that you can control everything. try the code below:
import com.microsoft.cognitiveservices.speech.*;
import com.microsoft.cognitiveservices.speech.audio.AudioConfig;
import java.nio.file.*;
import java.io.*;
import javax.sound.sampled.*;
public class TextToSpeech {
public static void main(String[] args) {
try {
String speechSubscriptionKey = "key";
String serviceRegion = "location";
String audioTempPath = "d://test.wav"; //temp file location
SpeechConfig config = SpeechConfig.fromSubscription(speechSubscriptionKey, serviceRegion);
AudioConfig streamConfig = AudioConfig.fromWavFileOutput(audioTempPath);
SpeechSynthesizer synth = new SpeechSynthesizer(config, streamConfig);
String filePath = "....//test2.txt"; // .txt file for test with long text
Path path = Paths.get(filePath);
String text = Files.readString(path);
synth.SpeakText(text);
Thread thread = new Thread(new Speaker(audioTempPath));
thread.start();
System.out.println("play audio for 8s...");
Thread.sleep(8000);
System.out.println("stop play audio");
thread.stop();
} catch (Exception ex) {
System.out.println("Unexpected exception: " + ex);
assert (false);
System.exit(1);
}
}
}
class Speaker implements Runnable {
private String path;
public String getText(String path) {
return this.path;
}
public Speaker(String path) {
this.path = path;
}
public void run() {
try {
File file = new File(path);
AudioInputStream stream;
AudioFormat format;
DataLine.Info info;
Clip clip;
stream = AudioSystem.getAudioInputStream(file);
format = stream.getFormat();
info = new DataLine.Info(Clip.class, format);
clip = (Clip) AudioSystem.getLine(info);
clip.open(stream);
clip.start();
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
}

How to block popups in cefsharp browser in vb.net project/ NOT c sharp

i have been looking for a while now, i have found a solution in csharp , but i couldn't translate it (implement it in my vb.net app).
My only aim is that when the user clicks a link no popups appear.
thank you for your help.
My vb.net coding skill is beginner level, c sharp no knowledge.
the working solution in c sharp:
using CefSharp;
using CefSharp.WinForms;
namespace popup_cefsharp
{
public partial class frm_main : Form
{
public frm_main()
{
InitializeComponent();
}
//variable
ChromiumWebBrowser chrome, chrome_popup;
private void initialize_browser()
{
try
{
CefSettings settings = new CefSettings();
Cef.Initialize(settings);
//main browser
chrome = new ChromiumWebBrowser(this.txt_url.Text.Trim());
LifespanHandler life = new LifespanHandler();
chrome.LifeSpanHandler = life;
life.popup_request += life_popup_request;
this.pan_container.Controls.Add(chrome);
chrome.Dock = DockStyle.Fill;
//second browser (popup browser)
chrome_popup = new ChromiumWebBrowser("");
this.pan_container_popup.Controls.Add(chrome_popup);
chrome_popup.Dock = DockStyle.Fill;
}
catch (Exception ex)
{
MessageBox.Show("Error in initializing the browser. Error: " + ex.Message);
}
}
private void carregar_popup_new_browser(string url)
{
//open pop up in second browser
chrome_popup.Load(url);
}
private void frm_main_FormClosing(object sender, FormClosingEventArgs e)
{
//close o object cef
Cef.Shutdown();
Application.Exit();
}
private void frm_main_Load(object sender, EventArgs e)
{
//initialize the browser
this.initialize_browser();
}
private void life_popup_request(string obj)
{
//function for open pop up in a new browser
this.carregar_popup_new_browser(obj);
}
}
}
link original post: https://www.codeproject.com/Articles/1194609/Capturing-a-pop-up-window-using-LifeSpanHandler-an
finally found the solution , if anyone is interested
here is the link, you will need to install the cefsharp nuggets packages, add lifespanhandler as a new class, the file is in the link, then copy the method to call the function from the mainform...
cheers...
https://github.com/messi06/vb.net_CefSharp_popup

How to use MetaTrader4.Manager.Wrapper to listening the event of TradeAdded/TradeClosed/TradeDeleted

I wand to listening the event of TradeAdded/TradeClosed/TradeDeleted ,that's my code:
public partial class Demo : Form
{
public static ConnectionParameters conParam = new ConnectionParameters();
public static ClrWrapper mt;
private void Hedera_Load(object sender, EventArgs e)
{
Login();
}
public void Login()
{
conParam = new ConnectionParameters
{
Login = serverConfig.ManageAccount,
Password = serverConfig.ManagePassword,
Server = serverConfig.ManageServer
};
mt = new ClrWrapper(conParam);
List<UserRecord> users = mt.UsersRequest().ToList();
mt.TradeClosed +=new TradeRecordUpdated(this.MyTradeClosed);
mt.TradeDeleted += new TradeRecordUpdated(this.MyTradeDeleted);
mt.TradeAdded += new TradeRecordUpdated(this.MyTradeAdded);
}
public void MyTradeAdded(ClrWrapper mt, TradeRecord tradeRecord)
{
MessageBox.Show("MyTradeAdded");
}
public void MyTradeClosed(ClrWrapper mt, TradeRecord tradeRecord)
{
MessageBox.Show("MyTradeClosed");
}
public void MyTradeDeleted(ClrWrapper mt, TradeRecord tradeRecord)
{
MessageBox.Show("MyTradeDeleted");
}
}
When i trade on the MetaTrader4 client ,I want to get the notify in my C# program.
“UsersRequest” is ok now,but the event does not run.
Where is wrong in my code ?
Can you write an example for me?
Those events are fired only in extended pumping mode. so you have to switch:
public void Login()
{
conParam = new ConnectionParameters
{
Login = serverConfig.ManageAccount,
Password = serverConfig.ManagePassword,
Server = serverConfig.ManageServer
};
mt = new ClrWrapper(conParam);
List<UserRecord> users = mt.UsersRequest().ToList();
mt.TradeClosed +=new TradeRecordUpdated(this.MyTradeClosed);
mt.TradeDeleted += new TradeRecordUpdated(this.MyTradeDeleted);
mt.TradeAdded += new TradeRecordUpdated(this.MyTradeAdded);
metatrader.PumpingSwitchEx();
}
However, after switching into pumping mode, you won't be able to use non pumping methods

Null pointer Exception using a PrintWriter

I have that inner class shown under. This is for a client/server and I had nullpointer exception at the "println" from an PrintWriter. I have tried all I know to solve it but, unsuccessfully. Anyone can give me a tip or an idea for what I have to do. Thanks guys!
Here's the FULL CLASS code:
public class ChatClient extends JFrame{
private JTextField textToSend;
private Socket socket;
private PrintWriter writer
private String name;
private JTextArea receivedText;
private Scanner reader;
public ChatCliente(String name){
super("Chat: "+ name);
this.name = name;
Font font = new Font("Serif", Font.PLAIN, 20);
textToSend = new JTextField();
textToSend.setFont(font);
JButton btn = new JButton("Send");
btn.setFont(font);
btn.addActionListener(new Listener());
Container content = new JPanel();
content.setLayout(new BorderLayout());
content.add(BorderLayout.CENTER, textToSend);
content.add(BorderLayout.EAST, btn);
receivedText = new JTextArea();
receivedText.setFont(font);
JScrollPane scroll = new JScrollPane(receivedText);
getContentPane().add(BorderLayout.CENTER, scroll);
getContentPane().add(BorderLayout.SOUTH, content);
configureNetwork();
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(500,500);
setVisible(true);
}
private void configureNetwork(){
try{
socket = new Socket("127.0.0.1",5000);
writer = new PrintWriter(socket.getOutputStream());
reader = new Scanner(socket.getInputStream());
new Thread(new ServerThread()).start();
}catch (Exception e){}
}
private class Listener implements ActionListener{
#Override
public void actionPerformed(ActionEvent e) {
try{
String s = name;
String t = textToSend.getText();
System.out.println(name+" : "+ textToSend.getText());
writer.println(s+" : "+t);
writer.flush();
textToSend.setText("");
textToSend.requestFocus();
}catch(Exception ex){
ex.printStackTrace();
}
}
}
private class ServerThread implements Runnable{
#Override
public void run() {
String text;
try{
while((text = reader.nextLine()) != null){
receivedText.append(text+"\n");
}
}catch(Exception e){}
}
}
}
'name' is not declared.
Maybe you meant:
String s = "name";
Just some stupid thing that happened to me: do not insert "/" in the name of your file, or it will of course look for an extra folder that probably isn't there.
int number = 1, total = 126;
String path = "some/path/found " + number + "/" + total;
PrintWriter pw = new PrintWriter(new BufferedWriter(new FileWriter(path, true)));

Implementation of simple Java IDE using Runtime Process and JTextArea

I am developing a simple Java IDE like Netbeans/Eclipse. My GUI includes two JTextArea component, one used as a TextEditor where the end user can type in his programs and the other used as an output window.
I am running the users programs by invoking the windows command prompt through Java Runtime and Process classes. I am also catching the IO streams of the process using the methods getInputStream(), getErrorStream(), getOutputStream().
If the program contains only the statements to print something onto the screen, I am able to display the output on the output window(JTextArea). But if it includes statements to read input from the user, then it must be possible for the user to type the expected input value via the output window and it must be sent to the process just as in Netbeans/Eclipse.
I also checked the following link
java: work with stdin/stdout of process in same time
Using this code, I am able to display only the statements waiting for input and not simple output statements. Also, only a single line is displayed on the output window at a time.
It would be great if anybody can help me to resolve this issue.
Thanks
Haleema
I've found the solution with little modification to the earlier post java: work with stdin/stdout of process in same time
class RunFile implements Runnable{
public Thread program = null;
public Process process = null;
private JTextArea console;
private String fn;
public RunFile(JTextArea cons,String filename){
console = cons;
fn=filename;
program = new Thread(this);
program.start();
}
#Override
public void run() {
try {
String commandj[] = new String[4];
commandj[0] = "cmd";
commandj[1]="/C";
commandj[2]="java";
commandj[3] = fn;
String envp[] = new String[1];
envp[0]="path=C:/Program Files (x86)/Java/jdk1.6.0/bin";
File dir = new File("Path to File");
Runtime rt = Runtime.getRuntime();
process = rt.exec(commandj,envp,dir);
ReadStdout read = new ReadStdout(process,console);
WriteStdin write = new WriteStdin(process, console);
int x=process.waitFor();
console.append("\nExit value: " + process.exitValue() + "\n");
}
catch (InterruptedException e) {}
catch (IOException e1) {}
}
}
class WriteStdin implements Runnable{
private Process process = null;
private JTextArea console = null;
public Thread write = null;
private String input = null;
private BufferedWriter writer = null;
public WriteStdin(Process p, JTextArea t){
process = p;
console = t;
writer = new BufferedWriter(new OutputStreamWriter(process.getOutputStream()));
write = new Thread(this);
write.start();
console.addKeyListener(new java.awt.event.KeyAdapter() {
#Override
public void keyTyped(java.awt.event.KeyEvent e){
//save the last lines for console to variable input
if(e.getKeyChar() == '\n'){
try {
int line = console.getLineCount() -2;
int start = console.getLineStartOffset(line);
int end = console.getLineEndOffset(line);
input = console.getText(start, end - start);
write.resume();
} catch (BadLocationException e1) {}
}
}
});
console.addCaretListener(new javax.swing.event.CaretListener() {
#Override
public void caretUpdate(CaretEvent e) {
console.setCaretPosition(console.getDocument().getLength());
throw new UnsupportedOperationException("Not supported yet.");
}
});
console.addFocusListener(new java.awt.event.FocusAdapter() {
#Override
public void focusGained(java.awt.event.FocusEvent e)
{
console.setCaretPosition(console.getDocument().getLength());
}
});
}
#Override
public void run(){
write.suspend();
while(true){
try {
//send variable input in stdin of process
writer.write(input);
writer.flush();
} catch (IOException e) {}
write.suspend();
}
}
}
class ReadStdout implements Runnable{
public Thread read = null;
private BufferedReader reader = null;
private Process process = null;
private JTextArea console = null;
public ReadStdout(Process p,JTextArea t){
process = p;
reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
console = t;
read = new Thread(this);
read.start();
}
public void run() {
String line;
try {
while((line = reader.readLine())!=null)
console.append(line+"\n");
}catch (IOException e) {}
}
}