Activex enums and disabled methods

I am relatively new to using Labview for accessing COM objects. I am trying to use Labview to access an SDK library for controlling a USB ultrasound machine. I am having a couple of problems that I am not sure if I can get around and would appreciate any help.
Firstly, I am having accessing tagged enums which are inputs to methods. This works for some inputs, where the enums are sequential (SCAN_STATE_STOP = 0, SCAN_STATE_ACQUIRE = 1, SCAN_STATE_FREEZE = 2,SCAN_STATE_RUN = 3). When I right click on the input and right click, the appropriate enum list shows. But this does not work for others that are not sequential (e.g. SCAN_MODE_UNKNOWN = 0,SCAN_MODE_B = 1,SCAN_MODE_M = 2,SCAN_MODE_PW = 4,SCAN_MODE_BPW = 7 etc). Is there a way of being able to access these? By just defining the integer value, I seem to be getting errors in some methods (but not all).
I am also having a problem in that one of the methods of the a specfic class is greyed out and disabled (GetControlObj). The input for this method is 'System.Guid@ riidCtrl', System.UInt32 ScanMode and System.UInt32 streamId. I suspect that the problem is that Labview cannot interfacece GUID object that needs to be input. Is this correct? Is there any way around this?
Regards,
Glen

Litch09 wrote:
I am sorry if my lingo is not up to speed, I have no formal programming training!
Neither have I, and that's never stopped me... (My "formal training" is as an electrical engineer! )
What you are seeing is behavior by design. Whether or not it's correct is debatable. LabVIEW enums are always consecutive. If you want to use a dropdown that has a text label with non-consecutive values then you can make a ring constant. Unfortunately, you have to do this manually. Basically, you're wanting to create a "sparse enum".If you do search for "spase enum" you'll find some information. A while ago JeanPierre wrote a tool to create an enum typedef and a lookup VI to conver the enum to the sparse value.

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Copy control for dates and disable the input

Hi All,
I have the following problem: I'm trying to copy dates in a follow-up order from the source order (which works fine by implementing the CRM_COPY_BADY method DATES) and disable the input of the copied dates in the follow-up order (which doesn't work).
In the change-parameter CT_INPUT_FIELDS you can specify the fields which have to be copied and furthermore you can control the modifiability of the field in the follow-up order via the parameter CHANGEABLE (e.g. 'A' means field can not be changed). This technique is the same in all methods of the copy BADI.
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On basis of drop down by key values i want to enable and disable ui elements is wda

How to enable and disable ui elements on basis of drop down by key values as i show in screen shot i have 3 values in drop down by key on basis of those values i need to enable and disable ui elements in webdynpro abap kindly reply back

Hi Sreedhara,
There are many tutorials on SCN for learning Web Dynpro ABAP. If the following steps don't make sense to you, please do a search for some tutorials and read through the tutorial materials. Hopefully the tutorials will help you to become familiar with some of the basics of Web Dynpro ABAP.
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Cheers,
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Are enums and inner classes allowed in taglib function signatures??

Hi,
I have a taglib with the following function definition:
<function>
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</function>Where com.example.bean.Patient.PatientAttribute is an enum (note package names have been changed to protect the innocent;-). When I try to compile my web app I get the following error:
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Thx.

I think that you'll find it easier to define a non-inner abstract class RefBase, that exposes a removeFromQueue() method, then extend that for your Ref class. That way, the queue just deals with RefBase instances (or ? extends RefBase).
I think that any other approach is going to get the compiler confused, because the compile-time Ref depends on the parameterization of its defining class.

Buttons enabling and disabling

Hello,
I'm developing a web based project based on JSP 1.2, MySQL and TOMCAT with Java2 SDK these
days. So,now I had a question reguarding user authentication.I want to do this. I have a login form to log into the system by providing his username and password.If (username & password)=correct then,the system must display the main form.This part is correct.It's working now.But, there are many people who can access this system.Each user has limited permissions. In my mainform, there are buttons to goto the next page. As an eg:there are 4 buttons in the mainform,called
1.Interview
2.Mark sheet
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4.Change password
In this system there are 4 users, who's roles are
System Administrator(Level 1):System Admin.,Change password
Administration manager(Level 2):Interview,Change password
General Manager (Level 3): Mark sheet,Change password
Eployees(Level 4):Change password
Only the user who has the permission can click the button and go to that related page.
(Eg:Only Administration manager can goto the Interview page.) In my UserPassword
table,there are 4 fields called,(empNo,userName,password,level)
I don't know how to do this using java.
Here is my user logon code which I use to check the username and password.This is working.
<form name="Login" method="POST" action="ProcessLogin.jsp">
     <input type="text" name="username" size="20" style="border: 1px solid
#0000FF"></td>
        <input type="password" name="password" size="20" style="border: 1px solid
#0000FF"></td>
        <input type="submit" value="LOGIN" name="login" style="border:1px solid #0000FF;
font-weight: bold"></b></td>
</form>.....................................................................................
ProcessLogin.jsp
<%@ page language="java" %>
<%@ page import="com.UserAccManager" %>
<%@ page session="true" %>
<jsp:useBean id="useraccount" class="com.UserAccManager"/>
<jsp:setProperty name="useraccount" property="*"/>
<%
String status = useraccount.verify();
String nextPage = "MainForm.jsp";
if(status.equals("InvalidU")) nextPage ="InvalidUserName.jsp";
if(status.equals("InvalidP")) nextPage ="InvalidPassword.jsp";
if(status.equals("main")) nextPage ="MainForm.jsp";
%>
<jsp:forward page="<%=nextPage%>"/>....................................................................................
Here is my JavaBean "UserAccManager.java"
package com;
// some codes.
public class UserAccManager
     private int empno;
     private String username;
     private String password;
     private int level;
     // Constructor
     public UserAccManager()
     this.empno = empno;
     this.username = username;
        this.password = password;
     this.level = level;
     //Sets the empno.
        public void setEmpno(int empno)
                this.empno = empno;
     //Gets empno.
     public int getEmpno()
          return empno;
     //Sets the user name.
        public void setUsername(String username)
                this.username = username;
     //Sets the password.
        public void setPassword(String password)
                this.password = password;
     //Gets user name.
     public String getUsername()
          return username;
     //Gets password
     public String getPassword()
          return password;
     //Sets the level
        public void setLevel(int level)
                this.level = level;
     //Gets level
     public int getLevel()
          return level;
      // Initializes the connection and statements
        public void initConnection() {
           if (connection == null) {
         try {
                 String sql;
                 // Open the database
                 Class.forName(DRIVER).newInstance();
                 connection = DriverManager.getConnection(URL);
                 //Login verification
              sql="SELECT UserName,password,level FROM UserPassword where
          UserName= ?;";
          pstmt3 = connection.prepareStatement(sql);
         catch (Exception ex) {
            System.err.println(ex.getMessage());
   // Closes the connection and statements
   // Method to be called by main class when finished with DB
   public void closeConnection() {
      try {
      pstmt3.close();
         pstmt2.close();
         pstmt1.close();
         connection.close();
      catch (Exception ex) {
         System.err.println(ex.getMessage());
     public String verify(){
          String usr="xxxx";
          String pass="ffff";
          try{
               initConnection();
               pstmt3.setString(1,username);
               ResultSet rs3=pstmt3.executeQuery();
                       while(rs3.next()){
                    usr=rs3.getString("UserName");
                    pass = rs3.getString("password");
                rs3.close();
            catch (Exception ex) {
                   System.err.println(ex.getMessage());
               if(!usr.equals(username))
                    return "InvalidU";
               } else if(!pass.equals(password)){
                    return "InvalidP";
                    }else{
                         return "main";
}Please help to solve this trouble. How to do this using normal java programming and/or JSP.
Thanks.

These are HTML buttons you are asking about, right? And your JSP will be generating HTML that includes these buttons that may or may not be disabled, right?
Your first step is to find out how to disable a button in HTML. Personally I wouldn't do that, I would only generate buttons that actually do something. Anyway I don't even think you can disable an HTML button. To do it that way, you'd just have an if-statement that generated the button only if it applied to the class of user. Here's your JSP design process:
1. Decide what HTML you want to have.
2. Write JSP code to produce that HTML.

RE: ActiveX control and Active Server Pages?

Martin, if it works in standalone VB program but not in an .asp page
through VBScript, I guess the reason may be the type mismatch on the
parameters of the ActiveX automation methods. VBScript is a subset of VB
and only supports the OLE data type VARIANT for calling the OLE
interface. The Conductor ActiveX control probably requires the actual
data types, such as long, BSTR, and so on, to be used on the parameters.
As a result, VBScript cannot call the methods on the control. One
workaround you can try is to create your own ActiveX control which is
simply a wrapper for calling the Conductor control. Its parameter types
use VARIANT and you do the data conversion in your wrapper code. Hope
this helps.
Lenny Hon
Descartes Systems Group
-----Original Message-----
From: Martin Peters [SMTP:[email protected]]
Sent: Monday, July 27, 1998 10:50 AM
To:
Subject: ActiveX control and Active Server Pages?
Hello Forte users,
Did anyone try to use the ActiveX control that ships with Conductor
1.0G in an Active Server Page?
I tried to use the ActiveX control without luck, so a sample would be
appreciated. The code
works fine in Visual Basic.
Below the code:
<HTML>
<BODY>
<%
Set thisDirectory =
Server.CreateObject("CONDUCTORCLIENT.WFDirectoryServiceCtl.1")
Set thisEngine = thisDirectory.WFFindEngine("ceengine", "centrale")
Set thisUser =
Server.CreateObject("CONDUCTORCLIENT.WFUserProfileDescCtrl.1")
thisUser.New
thisUser.ProfileName = "MiniUP"
thisUser.userName = "martin"
' The following call fails: Invalid procedure call or argument:
'thisEngine.OpenSession'
Set thisSession = thisEngine.OpenSession("CREATE", thisUser, "martin",
0)
Set thisProcess = thisSession.CreateProcess("MiniPD", Empty)
thisSession.CloseSession (WFSESSION_TERMINATED)
%>
</BODY>
</HTML>
Martin Peters
COMPAQ
NSIS - AD&I - Application Connect
email <[email protected]>
phone: +31 (30) 2834902
fax: +31 (30) 2834980
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive
<URL:http://pinehurst.sageit.com/listarchive/>-
To unsubscribe, email '[email protected]' with
'unsubscribe forte-users' as the body of the message.
Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>

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Flash player 10.1 Help ( ActiveX control and Download manager)

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Web browser and script activeX controls and HTML data

Hello,
I'm trying to use the Microsoft Web Browser (IWebBrowser2) and Script (IScriptControl) activeX controls in Labview to evaluate and execute HTML script. If I wire the web browser control's document object to the object input of the Script control's AddObject method, I can then evaluate/execute script such as "document.f.btnI.focus();" and such (in this case corresponding to Google's home page). However, there are other expressions that include the "window" object that are proving much more difficult to work with. Although I can browse the document object's parentWindow object via the property browser, if I try to access that object programatically, I get the error "Error -2147467262 occurred at No such interface supported". I'm wondering how to include the window object for scripting.
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Hi Ted,
This seems to be a problem with the way you are referencing the ActiveX properties. I would research a little more on the API for these objects. See http://msdn.microsoft.com/workshop/browser/webbrowser/reference/ifaces/iwebbrowser2/document.asp for an explanation of the IWebBrowser2 Document property. I am suspicious of where you are typecasting the Document variant into the IHTMLDocument2 object and this is where the error is being thrown.
A search of this error code on Google shows that this is a generic error from the ActiveX object, and not a LabVIEW error, although it is confusing since LabVIEW uses error codes in this same range.
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Enum and restrictions

Hi,
Could anybody tell me what are the underlying reasons of not
letting clone enums (and what has got in common with special
handling of serialization I believe ...) ? I know that it would break
the singleton design pattern, but why is it so important ? What would
the risk be ? Any examples ?
Thanks,
Adrian

Performance, just performance. Note that enums don't have real value
semantics and that enums are a close friend of the compiler. If you'd
be able to clone() an enum, its equals() method would have to support
value semantics (slowing down the thing) and what would the benefit
be? Now the compiler can simply take an enum's 'ordinal' value,
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switch statements etc.)
kind regards,
Jos

My daughter forgot her password and disabled her ipod. we never took the time to synch it to the computer. how can we fix it without loosing all her stuff

my daugheter forgot her password and disabled her ipod. we never took the time to synch it with our computer. any way to fix it without loosing all her stuff?

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Difference between 'Always Refresh' and 'Disable Cache Hits'

We are using clustered application servers with its own cache. We are not doing any cache synchronization. So, for selective objects we should ensure that cache is not returning stale objects.
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These are similar and often used together settings:
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Is used by TopLink when a ReadObjectQuery is executed with only the PK fields. By default TopLink will short-circuit going to the database and try to find the object in the cache first. This includes 1:1 mapping queries. Turning this on will cause TopLink to go to the database instead of the cache in these cases.
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How to Enable and Disable column in Table Control.

Hi all,
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Please send me sample code.
Thanks in advance.

Hi Vipin,
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delcare a workarea for the columns in the table control in your top include.
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CONTROLS: TAB1 TYPE TABLEVIEW USING SCREEN '0100'.
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Please provide points if helpfull.....
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Message was edited by: Karthik
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Validating enabled and disabled menu bar in JInternalFrame

hi,
everybody.
i have created a main window using JInternalFrame and JDesktopPane. The window has a menu bar in which document menu is used for closing the main window, while employee menu is used for adding new frame for the employee. while the login frame is displayed when the application is executed.
my problem is, i want to validate that before login process, employee menu should be disabled, and after login is performed employee menu is enabled.
the following is my code.
please reply me as i am stucked with it.
waiting for the reply
thanks in advance.
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.io.*;
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public InternalFrameDemo()
super("InternalFrameDemo");
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additem.setActionCommand("add");
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String str = ae.getActionCommand();
if(str.equals("add"))
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createEmployee();
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MyEmployeeFrame employeeframe = new MyEmployeeFrame();
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catch(Exception e)
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catch(Exception e){}
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System.exit(0);
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InternalFrameDemo frame = new InternalFrameDemo();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(800,600);
frame.setVisible(true);
public static void main(String a[])
createAndShowGUI();
class MyEmployeeFrame extends JInternalFrame implements ActionListener
JFrame employeeframe;
JLabel labelfirstname;
JLabel labellastname;
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JLabel labeladdress;
JLabel labelcity;
JLabel labelstate;
JTextField textfirstname;
JTextField textlastname;
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JTextField textaddress;
JTextField textcity;
JTextField textstate;
JButton buttonsave;
FileOutputStream out;
PrintStream p;
String strfirstname,strlastname,strage,straddress,strcity,strstate;
GridBagLayout gl;
GridBagConstraints gbc;
public MyEmployeeFrame()
super("Employee Details",true,true,true,true);
setSize(500,400);
labelfirstname = new JLabel("First Name");
labellastname = new JLabel("Last Name");
labelage = new JLabel("Age");
labeladdress = new JLabel("Address");
labelcity = new JLabel("City");
labelstate = new JLabel("State");
textfirstname = new JTextField(10);
textlastname = new JTextField(10);
textage = new JTextField(5);
textaddress = new JTextField(15);
textcity = new JTextField(10);
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gl = new GridBagLayout();
gbc = new GridBagConstraints();
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gbc.anchor = GridBagConstraints.NORTHWEST;
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gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 1;
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gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 3;
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gbc.gridx = 1;
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gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 1;
gbc.gridy = 9;
gl.setConstraints(labeladdress,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 3;
gbc.gridy = 9;
gl.setConstraints(textaddress,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 1;
gbc.gridy = 11;
gl.setConstraints(labelcity,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 3;
gbc.gridy = 11;
gl.setConstraints(textcity,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 1;
gbc.gridy = 13;
gl.setConstraints(labelstate,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 3;
gbc.gridy = 13;
gl.setConstraints(textstate,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 3;
gbc.gridy = 17;
gl.setConstraints(buttonsave,gbc);
Container contentpane = getContentPane();
contentpane.setLayout(gl);
contentpane.add(labelfirstname);
contentpane.add(textfirstname);
contentpane.add(labellastname);
contentpane.add(textlastname);
contentpane.add(labelage);
contentpane.add(textage);
contentpane.add(labeladdress);
contentpane.add(textaddress);
contentpane.add(labelcity);
contentpane.add(textcity);
contentpane.add(labelstate);
contentpane.add(textstate);
contentpane.add(buttonsave);
buttonsave.addActionListener(this);
public void reset()
textfirstname.setText("");
textlastname.setText("");
textage.setText("");
textaddress.setText("");
textcity.setText("");
textstate.setText("");
public void actionPerformed(ActionEvent ae)
String str = ae.getActionCommand();
System.out.println(str);
if(str.equalsIgnoreCase("Save"))
try
out = new FileOutputStream("myfile.txt",true);
p = new PrintStream( out );
strfirstname = textfirstname.getText();
strlastname = textlastname.getText();
strage = textage.getText();
straddress = textaddress.getText();
strcity = textcity.getText();
strstate = textstate.getText();
p.print(strfirstname+"|");
p.print(strlastname+"|");
p.print(strage+"|");
p.print(straddress+"|");
p.print(strcity+"|");
p.println(strstate);
System.out.println("Record Saved");
reset();
p.close();
catch (Exception e)
System.err.println ("Error writing to file");
class MyLogin extends JInternalFrame implements ActionListener
JFrame loginframe;
JLabel labelname;
JLabel labelpassword;
JTextField textname;
JPasswordField textpassword;
JButton okbutton;
String name = "";
FileOutputStream out;
PrintStream p;
Date date;
GregorianCalendar gcal;
GridBagLayout gl;
GridBagConstraints gbc;
public MyLogin()
super("Login",true,true,true,true);
setSize(400,300);
gl = new GridBagLayout();
gbc = new GridBagConstraints();
labelname = new JLabel("User");
labelpassword = new JLabel("Password");
textname = new JTextField("",9);
textpassword = new JPasswordField(5);
okbutton = new JButton("OK");
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 1;
gbc.gridy = 5;
gl.setConstraints(labelname,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 2;
gbc.gridy = 5;
gl.setConstraints(textname,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 1;
gbc.gridy = 10;
gl.setConstraints(labelpassword,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 2;
gbc.gridy = 10;
gl.setConstraints(textpassword,gbc);
gbc.anchor = GridBagConstraints.NORTHWEST;
gbc.gridx = 1;
gbc.gridy = 15;
gl.setConstraints(okbutton,gbc);
Container contentpane = getContentPane();
contentpane.setLayout(gl);
contentpane.add(labelname);
contentpane.add(labelpassword);
contentpane.add(textname);
contentpane.add(textpassword);
contentpane.add(okbutton);
okbutton.addActionListener(this);
public void reset()
textname.setText("");
textpassword.setText("");
public void run()
try
String text = textname.getText();
String blank="";
if(text.equals(blank))
System.out.println("First Enter a UserName");
else
if(text != blank)
date = new Date();
gcal = new GregorianCalendar();
gcal.setTime(date);
out = new FileOutputStream("log.txt",true);
p = new PrintStream( out );
name = textname.getText();
String entry = "UserName:- " + name + " Logged in:- " + gcal.get(Calendar.HOUR) + ":" + gcal.get(Calendar.MINUTE) + " Date:- " + gcal.get(Calendar.DATE) + "/" + gcal.get(Calendar.MONTH) + "/" + gcal.get(Calendar.YEAR);
p.println(entry);
System.out.println("Record Saved");
reset();
p.close();
catch (IOException e)
System.err.println("Error writing to file");
public void actionPerformed(ActionEvent ae)
String str = ae.getActionCommand();
if(str.equals("OK"))
run();
loginframe.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
}

I realize this post is from a few days ago, but if you're still looking for help:
This is my first thought on how to do this. Unfortunately, it's a bit messy. JMenuItems can be enabled and disabled but JMenus don't have this option...
public class InternalFrameDemo extends JFrame implements ActionListener
    JDesktopPane desktop;
    JMenuBar menuBar;
    public InternalFrameDemo()
     setJMenuBar(createMenuBar());
     desktop.setDragMode(JDesktopPane.OUTLINE_DRAG_MODE);
     createLogin();
    public JMenuBar createMenuBar()
     menuBar = new JMenuBar();
     JMenu menu = new JMenu("Document");
     menu.setMnemonic(KeyEvent.VK_D);
     menuBar.add(menu);
     JMenuItem menuItem = new JMenuItem("Quit");
     menuItem.setMnemonic(KeyEvent.VK_Q);
     menuItem.setAccelerator(KeyStroke.getKeyStroke( KeyEvent.VK_Q, ActionEvent.ALT_MASK));
     menuItem.setActionCommand("quit");
     menuItem.addActionListener(this);
     menu.add(menuItem);
     JMenuItem additem = new JMenuItem("Add");
     additem.setMnemonic(KeyEvent.VK_A);
     additem.setActionCommand("add");
     additem.addActionListener(this);
     employee.add(additem);
     return menuBar;
    public void createLogin()
     MyLogin loginframe = new MyLogin( menuBar );
     loginframe.setVisible(true);
     desktop.add(loginframe);
     try
         loginframe.setSelected(true);
     catch(Exception e)
class MyLogin extends JInternalFrame implements ActionListener
    JMenuBar menuBar;
    public MyLogin( JMenuBar menuBar1 )
     super("Login",true,true,true,true);
     menuBar = menuBar1;
    public void actionPerformed(ActionEvent ae)
     String str = ae.getActionCommand();
     if(str.equals("OK"))
         run();
         JMenu employee = new JMenu("Employee");
         employee.setMnemonic(KeyEvent.VK_E);
         employee.setActionCommand("employee");
         menuBar.add(employee);
         loginframe.setDefaultCloseOperation(DISPOSE_ON_CLOSE);
}

Abstract class with set and get methods

hi
how to write set and get methods(plain methods) in an abstartc class
ex: setUsername(String)
String getUsername()
and one class is extending this abstract class and same methods existing in that sub class also..... how to write......plz provide some ideas
am new to programming....
asap
thnx in advance

yes... as i told u.... i am new to coding......
and my problem is ..... i have 2 classes one is abstract class without abstract methods.. and another class is extending abstract class.....
in abstract class i have 2 methods...one is setusername(string) and getusername() ..... how to write these two methods.... in abstract class i have private variables username...... when user logins ..... i need to catch the user name and i need to validate with my oracle database and i need to identify the role of that user and based on role of that user i need to direct him to appropriate jsp page.......
for that now i am writing business process classes..... the above mentioned two classes are from business process.....
could u help me now
thnx in advance

Activex enums and disabled methods

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