I need help on a native project (JNA)

Dear users,
I have a program that starts up a notepad, and I want it to be contained inside a java application.
Like: Code to Host a Third Party Application in our Process Window (e.g. Google Chrome, Internet Explorer 8) - CodeProject
Everything runs fine, but finally the SetParent does not work at all, but it return a pointer (showing me that it is success)
The SetParent() does not set the parent, but everything seems to be fine.
The windows supports the following functions to handle windows:
Content not found...
The following is done:
CreateProcessA() called to start notepad (and I used it because java does not allow me to retrieve process id).
WaitForInputIdle() used to wait for the window to become visible, and to retrieve its handle.
GetTopWindow(null), GetWindowThreadProcessId(w, pid), GetWindow(w, 2); is used to find the window of the given process id. (If I close the notepad before these are executed the system does not find a window for that process id, so it works as well)
Finally the SetParent() is used to set the parent
From the microsoft msdn:
"If the function succeeds, the return value is a handle to the previous parent window."
And it does return a pointer!
Result:
The notepad window does not hosted :(
Here are the files I use:
--- APPLICATION -------------------
package com.smith;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Component;
import java.awt.Dimension;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import com.smith.Kernel32.ProcessInformation;
import com.smith.Kernel32.StartupInfoA;
import com.sun.jna.Native;
import com.sun.jna.Platform;
import com.sun.jna.Pointer;
import com.sun.jna.ptr.IntByReference;
public class Main implements Runnable {
public static void main(String[] args) {
Main main = new Main();
SwingUtilities.invokeLater(main);
public Pointer getWindowOf(int pid) {
Pointer w = User32.INSTANCE.GetTopWindow(null);
IntByReference iptr = new IntByReference();
while (w != null) {
User32.INSTANCE.GetWindowThreadProcessId(w, iptr);
if (iptr.getValue() == pid) {
return w;
w = User32.INSTANCE.GetWindow(w, 2);
return null;
private String host(String prog, Component heavy) {
ProcessInformation pi = this.runAndWait(prog);
heavy.setPreferredSize(new Dimension(600, 500));
Pointer handle = Native.getComponentPointer(heavy);
Pointer procWnd = this.getWindowOf(pi.dwProcessId);
Pointer last = User32.INSTANCE.SetParent(procWnd, handle);
if (last == null) {
throw new IllegalArgumentException("Can not set parent: " + Kernel32.INSTANCE.GetLastError());
return "Started: " + pi.dwProcessId + " (window: " + procWnd + ") -> Java parent: " + handle;
@Override
public void run() {
JFrame frame = new JFrame("Hosting Window");
frame.setPreferredSize(new Dimension(500, 600));
JLabel label = new JLabel("Alma");
frame.setLayout(new BorderLayout());
frame.add(label, BorderLayout.NORTH);
Component heavy = new Canvas();
frame.add(heavy, BorderLayout.CENTER);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.pack();
frame.setVisible(true);
try {
String ret = this.host("c:\\Windows\\notepad.exe", heavy);
label.setText(ret);
} catch (IllegalArgumentException ia) {
label.setText(ia.getMessage());
private ProcessInformation runAndWait(String program) {
ProcessInformation processInformation = new ProcessInformation();
StartupInfoA startupInfo = new StartupInfoA();
startupInfo.cb = Platform.is64Bit() ? 104 : 68;
boolean ok = Kernel32.INSTANCE.CreateProcessA(program, null, null, null, true, 0x00000020, null, null, startupInfo, processInformation);
if (ok) {
User32.INSTANCE.WaitForInputIdle(processInformation.hProcess, -1);
} else {
throw new IllegalArgumentException("Executing '" + program + "' failed: " + Kernel32.INSTANCE.GetLastError());
return processInformation;
package com.smith;
import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.Structure;
public interface Kernel32 extends Library {
public class ProcessInformation extends Structure {
public Pointer hProcess;
public Pointer hThread;
public int dwProcessId;
public int dwThreadId;
public class StartupInfoA extends Structure {
public int cb;
public String lpReserved;
public String lpDesktop;
public String lpTitle;
public int dwX;
public int dwY;
public int dwXSize;
public int dwYSize;
public int dwXCountChars;
public int dwYCountChars;
public int dwFillAttribute;
public int dwFlags;
public short wShowWindow;
public short cbReserved2;
public Pointer lpReserved2;
public Pointer hStdInput;
public Pointer hStdOutput;
public Pointer hStdError;
Kernel32 INSTANCE = (Kernel32) Native.loadLibrary("kernel32", Kernel32.class);
boolean CreateProcessA(String lpApplicationName, String lpCommandLine, Pointer lpProcessAttributes, Pointer lpThreadAttributes, boolean bInheritHandles,
long dwCreationFlags, Pointer lpEnvironment, String lpCurrentDirectory, StartupInfoA lpStartupInfo, ProcessInformation lpProcessInformation);
int GetLastError();
package com.smith;
import com.sun.jna.Library;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.ptr.IntByReference;
public interface User32 extends Library {
User32 INSTANCE = (User32) Native.loadLibrary("user32", User32.class);
Pointer GetTopWindow(Pointer wnd);
Pointer GetWindow(Pointer wnd, int cmd);
int GetWindowThreadProcessId(Pointer wnd, IntByReference ptr);
Pointer SetParent(Pointer hWndChild, Pointer hWndNewParent);
int WaitForInputIdle(Pointer process, int timeout);
Thnx,
Tamas

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O
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t _ _ t
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Enter a letter: f
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Enter a letter: g
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cmd2.Parameters.Add(op2);
cmd2.CommandType = CommandType.StoredProcedure;
int code = cmd2.ExecuteNonQuery(); //error here
String buildit = (string)op2.Value;
oracleConn.Close();
return buildit;
}

Hi,
In cases with the same problems do you have, it's recommended to post a break point before the call of the store procedure. And then test the store procedure with this values separately. If you do this you can find out where the problem is.
Also, is best if you put the output of the console log to see what it's the problem.
Regards,

Need help Staffing a Portal Project

Can anyone tell me how many people are needed to staff a sun Portal implementation project. We are estimating 2 fulltime developers for a 6 month duration.
The client wants the follwing features: Personalization, Online forums/collaboration, Portlets and custom navigation.
Do we need more that 2 developers. Can anyone tell me anything about the Sun Portal server. Is it configurable like BEA , Vignette and websphere. I do not see too many out of the box features listed for the Sun Portal server.
What is the level of difficulty? Does Sun Portal server just provide a bunch of API's or does it have configurable out of the box solutions.
Thanks

It really depends on the "right people" and their experience...
Based on your project description it could take two-four weeks
for two people (UI Template Designer and Portal Architect)
who are Sun ONE portal experts or up to 6 months for a
developer team with no KnowHow in portal applications
and integration solutions...
SunONE portal is in many ways simpler than some other
portals, but there are less free "out the box" extensions
available. However some SunONE partners and integrators
are offering free "start up packages" with most wanted
portal extensions like Forums, Chats, FileManager, ProductCatalog or Shopping Cart...
PS: If you are interested to learn more, you can drop me a mail.
Cheers,
Alex :-)

Need help with saving my project

When I try to export and save my project, iMovie answers that I need more storage space to go on and that I need to end and restart the program. What can I do to save my project? There is lots of work in it. Thank you.

If iMovie is only preventing you from sharing/exporting your movie, your project itself should still be OK.
If you have everything on your internal drive it is probably getting too full (you can check with finder). You need to free up some space or get an external hard drive. An external drive is almost essential if you are going to do a lot of video work since file are so large.
Geoff.

I need help on a native project (JNA)

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