Restoring minimized swing app performance
Holla,
i am writing a swing application and there is a performance problem
waking up the app: i mimimize the application (send it to the WIndows taskbar) then i
start other 'large' programs like word, my email client, or the IDE. when i maximize
the application now, it needs about 5-15 secounds to paint and 'come to live again'.
during this period of time the frame stays gray. this is poor response time..
I've seen other swing applications doing similar things. Netbeans for example.
Does anybody know the reason for this behaviour?
-mike
This question is even more confusing then the one you asked before. Do you understand how PHP works because your question appears to have nothing to do with PHP whatsoever... unless you are confused which appears to be the case.
Could you describe the flow of your application a little please? That might be helpful. Like your user does X then Y happens etc. Rather than configure the PHP script which makes no real sense at all... because that sounds like a script editor which is fine in and of itself but is not related to a question about browsers Java or otherwise.
If you don't like this answer than I will say this. Yes it is possible in Java but not on alternate Tuesdays and as always, beware the classpath.
Good luck.
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You should have transferred any purchases to your computer.
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Hello,
I have followed the instructions in (http://hints.macworld.com/article.php?story=20041129160952245) in order to replace the default Finder.app with PathFinder ... However, my backed up copy of the Finder.app was deleted somewhat and i cannot find it anymore .. i wish to restore the Finder.app (the default one again). Can you please let me know if this is possible ?!
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Thanks in advanceIf you had performed a full Time Machine (or other) backup of your system, you may find Finder.app in the following place. It does not appear to have any Access Control information. Remember, it is a Package (directory) not a simple file.
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Hi,
I have googled quite a bit and have searched the forum extensively but haven't found answers to my questions.
I have a small swing based application (that uses jtextfields, jbuttons, jlist, etc) that collects information from user
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Now this information is to be formatted and is to be printed as a report.
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http://forums.sun.com/thread.jspa?forumID=331&threadID=225351
http://forums.sun.com/thread.jspa?forumID=57&threadID=576758
http://forums.sun.com/thread.jspa?forumID=57&threadID=570629
http://forums.sun.com/thread.jspa?forumID=1&threadID=489905
http://forums.sun.com/thread.jspa?forumID=57&threadID=571093
http://forums.sun.com/thread.jspa?forumID=257&threadID=138450
http://forums.sun.com/thread.jspa?forumID=57&threadID=583150
http://forums.sun.com/thread.jspa?forumID=57&threadID=5399572
http://forums.sun.com/thread.jspa?forumID=57&threadID=579619
http://forums.sun.com/thread.jspa?forumID=57&threadID=593199
Help would be much appreciated.alan_mehio wrote:
The simplest thing to do in your case is to load the file content into the JTextArea
then to create the header and the footer if there is any from java.text.MessageFormat
then you invoke the print method on the JTextArea instance object> Just let me know if you are face any furrher problem
Alan Mehio,
I have been able to set margins and get the printout just the way I want it (after some experiments / trial & error).
But the problem is, parameters to paper.setImageableArea() are hard coded as in the example code below :
System.out.println("print?");
PrinterJob printJob = PrinterJob.getPrinterJob();
if (printJob.printDialog()) {
PageFormat pf = printJob.defaultPage();
Paper paper = pf.getPaper();
paper.setSize(8.5 * 72, 11 * 72);
System.out.println("paper width : " + paper.getWidth());// expecting 612
System.out.println("paper height : " + paper.getHeight());// expecting 792
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System.out.println("imageable width : " + paper.getImageableWidth());
System.out.println("ImageableX : " + paper.getImageableX());
System.out.println("Imageable y : " + paper.getImageableY());
//paper.setImageableArea(108, 144, paper.getWidth() - 108, paper.getHeight() - 144);
paper.setImageableArea(222, 244, paper.getWidth() - 222, paper.getHeight() - 244);
pf.setPaper(paper);
printJob.setPrintable(jTextArea1.getPrintable(null, null), pf);
try {
printJob.print();
} catch (Exception ex) {
System.out.println("exception while printing...");
ex.printStackTrace();
}In my case the left margin should be 1.5 inches (38.1mm) and top margin should be 2 inches (50.8 mm)
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Here are o/p lines for method-call with above said params :
paper width : 612.0
paper height : 792.0
ImageableHeight : 648.0
imageable width : 468.0
ImageableX : 72.0
Imageable y : 72.0
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Although I have been able to achieve what I wanted to without using 3rd party libraries,
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How can I restore 3rd party app data from my backup in the cloud
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Thanks!Assuming that you even have a backup with the data in it, you have no choice but to use a backup in order to restore that data. That is the idea behind backing up to iCloud. If that is the only backup that you have - then that is the one that you have to use.
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Keyboard Problem while running Swing App on LINUX
Hi All,
We have a Swing based Application running on Windows Platform. We need to run the Application on LINUX. The Application does not have any problem and runs without problems for a few minutes but after that the keyboard stops to respond inside the application. Keyboard runs fine outside the application but no key events are recognized inside the application. Mouse is working fine even after the keyboard stops responding.
Key Points:
� The keyboard is a PS/2 keyboard.
� Read Hat Fedora 5.0 is being used.
� The problems occur on both KDE and GNONE.
� The Java Version is jdk1.5.0_09
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http://www.simplyjava.comI've just installed the JDK 1.4 on my debian box. I
can compile and run a basic Hello World app using
System.println, but when I try to run a simple swing
app, I get an error like:
Exception in thread "main"
java.lang.NoClassDefFoundError
at java.lang.Class.forName0(Native Method)
at java.lang.... etc, etc.
It goes on with about 30 different classes. It
compiles fine, with no errors, but when it comes time
to run, that's what I get. This is what I have in my
.bash_profile as far as environment variables go:
export JAVA_HOME="/usr/local/j2sdk1.4.1_01"
export PATH="$JAVA_HOME/BIN:$PATH"
export
CLASSPATH="$JAVA_HOME/jre/lib/:$JAVA_HOME/lib:."The code works fine in Windows, so unless there's
something platform-specific, I don't think there's a
problem there. I've checked to make sure I'm not
running kaffe by accident and I'm definitely running
the right java and javac. I'm out of ideas. Any
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Launching Swing apps in foreground remotely
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Swing app keyboard stops working, mystery ESCAPE keystrokes appear in EDT
Java 6 Swing app. In our development environment, works great. In QA, they use it for a bit, type in a text field, click out to a Windows XP/7 app, click back in the text field, and the keyboard stops accepting keystrokes. The mouse continues to work, and the Swing app continues to paint to the screen.
I hooked up a KeyEventDispatcher to listen to what is going on. I'll post a more verbose log at the end of this post, but the short version is this. When the keyboard hangs, the log shows that 'escape' keys are being sent, though we do not do any keystroke injection in our app, ESCAPE or otherwise. Nothing on the Swing app can be determined visually to have focus.
Just before the app starts hanging, it has a side effect of not being able to be brought into the foreground by clicking on it, if, for example, one was working with Excel or Notepad, then try to click on the JFrame title of the app, or anywhere else on the app frame/internals. Once this condition happens, moving away to another Windows app, then going back to the Swing app, causes the keyboard to stop working and the KeyEventDispatcher to see 'escape' keystrokes being sent out.
Connecting remotely to the app via JVisualVM/JConsole does not show any of the threads hanging/blocked.
Sometimes you can work for hours before seeing this problem, and other times, you can start the app up and it happens right away. Once it happens, sometimes you can't recover, and sometimes you can click on a button on a navigator panel on the left side that displays an info panel on the right side, and you can start typing again in text fields.
Once this problem happens, you can start (or have already running) a completely different Swing app (ex.: StackTrace), and the keyboard will stop working for that app too, even though its running in its own separate VM.
This problem (ALMOST!) always happen when typing in a Swing text field (JTextField, JTextArea, etc.), clicking on and then typing in a Windows text area (Excel cell, Notepad), then clicking back into the Swing app's text field. A few times, we've gotten this to happen by typing in a text field, tabbing to a button, pressing a button, then tabbing/clicking back into the text field, all without leaving the Swing app. But this latter scenario is rare, usually going to/from Swing/Windows XP/7 apps cause the problem to occur more readily.
The QA computers normally use Citrix to connect and run the app, but this also happens if we run the app completely locally. But again, this only happens to some computers, all of the ones in the QA department; the development computers (the app has not been released into production yet) does not see this problem.
I had thought that our problem was this problem (Wrong characters in KeyEvents generated from input of barcode scanner but purposely slowing down the acceptance of KEY_PRESSED and KEY_RELEASED events before allowing them to go on to the Swing app (via a KeyDispatcher) did not solve the problem.
Also, we had thought it might be a Citrix problem and how it (or does it?) hook into the Windows keyboard. The fact that once one Swing app gets into this keyboard doesn't work and escape keys are being sent out by the EDT can affect another Swing app makes me wonder. We're not seeing any VM exceptions either like this (EXCEPTION_ACCESS_VIOLATION - JRE 6.0_23 - Citrix, windows 2003
Been trying to get this one solved for over a week, but with no luck. Any help/advice would be appreciated. Thank you in advance for your time.
P.S. Here's the detailed log info I generated via my KeyEventDispatch listener...
2011-04-01 11:58:17,493 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:36 - KEY1-keystroke [java.awt.DefaultKeyboardFocusManager@377369]: java.awt.event.KeyEvent[KEY_PRESSED,keyCode=27,keyText=Escape,keyChar=Escape,keyLocation=KEY_LOCATION_STANDARD,rawCode=27,primaryLevelUnicode=27,scancode=1] on javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
2011-04-01 11:58:17,494 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:42 - KEY2-ActiveWindow: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
2011-04-01 11:58:17,496 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:48 - KEY3-CurrentFocusCycleRoot: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
2011-04-01 11:58:17,497 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:54 - KEY4-FocusedWindow: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
2011-04-01 11:58:17,498 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:60 - KEY5-FocusOwner: javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
2011-04-01 11:58:17,499 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:66 - KEY6-PermanentFocusOwner: javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
2011-04-01 11:58:17,501 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:74 - KEY7-stacktrace...
com..client.util.MyKeyEventDispatcher$StackTraceGenerationException: This exception was created to generate a stack trace, and can be safely ignored.
at com..client.util.MyKeyEventDispatcher.dispatchKeyEvent(MyKeyEventDispatcher.java:73)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
2011-04-01 11:58:17,504 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:36 - KEY1-keystroke [java.awt.DefaultKeyboardFocusManager@377369]: java.awt.event.KeyEvent[KEY_RELEASED,keyCode=27,keyText=Escape,keyChar=Escape,keyLocation=KEY_LOCATION_STANDARD,rawCode=27,primaryLevelUnicode=27,scancode=1] on javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
2011-04-01 11:58:17,506 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:42 - KEY2-ActiveWindow: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
2011-04-01 11:58:17,507 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:48 - KEY3-CurrentFocusCycleRoot: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
2011-04-01 11:58:17,508 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:54 - KEY4-FocusedWindow: javax.swing.JFrame[mainFrame,128,128,1024x768,invalid,layout=java.awt.BorderLayout,title=My - HQ - 17601,resizable,normal,defaultCloseOperation=DO_NOTHING_ON_CLOSE,rootPane=javax.swing.JRootPane[,0,0,1024x768,invalid,layout=com.ep.skin.lnf.framework.internal.RootPaneUI$MetalRootLayout,alignmentX=0.0,alignmentY=0.0,border=javax.swing.plaf.BorderUIResource@d0e678,flags=16777673,maximumSize=,minimumSize=,preferredSize=],rootPaneCheckingEnabled=true]
2011-04-01 11:58:17,509 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:60 - KEY5-FocusOwner: javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
2011-04-01 11:58:17,510 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:66 - KEY6-PermanentFocusOwner: javax.swing.JTextField[,320,28,175x18,layout=javax.swing.plaf.basic.BasicTextUI$UpdateHandler,alignmentX=0.0,alignmentY=0.0,border=com.ep.skin.lnf.framework.utils.internal.RoundedBorder@c3a7c0,flags=296,maximumSize=,minimumSize=,preferredSize=,caretColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],disabledTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],editable=true,margin=javax.swing.plaf.InsetsUIResource[top=0,left=0,bottom=0,right=0],selectedTextColor=sun.swing.PrintColorUIResource[r=51,g=51,b=51],selectionColor=javax.swing.plaf.ColorUIResource[r=184,g=207,b=229],columns=15,columnWidth=11,command=,horizontalAlignment=LEADING]
2011-04-01 11:58:17,512 [AWT-EventQueue-1] DEBUG MyKeyEventDispatcher.dispatchKeyEvent:74 - KEY7-stacktrace...
com..client.util.MyKeyEventDispatcher$StackTraceGenerationException: This exception was created to generate a stack trace, and can be safely ignored.
at com..client.util.MyKeyEventDispatcher.dispatchKeyEvent(MyKeyEventDispatcher.java:73)
at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
The above log info repeats multiple times, KEY_PRESSED and KEY_RELEASE, over and over again, for 'escape' keys.
Edited by: 850693 on Apr 7, 2011 10:16 AM (typo fix)
Edited by: 850693 on Apr 7, 2011 10:19 AM (Fixed links)<discaimer>Don't put too much hope in my reply</disclaimer>
The only real difference is QA has the Citrix client installed on them, and development does not. You don't need to run our Swing app through a Citrix client though to cause the bug/freezing, just running it on a PC with the Citrix client seems to be enough (in theory). We've been working down a checklist of possible problems/solutions, and we've gotten to the "Install Citrix to the dev PC" item now, so I'll post back if that makes a difference or not in reproducing the problem.
I've also had QA people actually come over to a dev PC, without the Citrix client, and try to reproduce the problem, and they have not been able to. There's 'something' about their environment vs. ours, but not sure how that would manifest itself as a AWT/Swing keyboard event of mysterious escape keystrokes followed by the locking up on the keyboard, but not the whole Swing app. My personal guess is the Citirix client installing funky Windows-level keyboard driver(s), but I may be totally off on that. /shrugI read your initial post twice and couldn't find out whether you reproduce that on several different machines, so one "environmental" difference comes to mind: have you tried using another keyboard on the defective QA configuration?
Of course that doesn't explain in itself how the problem would manifest only after switching back and forth to a native Windows app, but then, with the hint that Citrix may make a difference, maybe one driver filters out repeated "Esc" keystrokes, while another doesn't, and that manifests only after a few app switches, and the system event queue, or whatever it's called in Windows, redirects the events to the target app/window?
Other than that, I wish you had investigated Jeanette's pacemaker hypothesis more... ;)
Otherwise, yeah. I have a hook in to see all AWTEvent's, but I still need to see/find what's posting the mysterious escape keys to the event queue.I assume it's what you mean, but I'll try to make that clear: you have to investigate, at the OS level, what is posting escape key events to the OS queue.
I am not a Windows developper, but I seem to understand that the following programs claims to capture keystrokes on the whole screen (not limited to a single window), with some limitations: http://www.codeproject.com/KB/winsdk/WIN_RECORDER.aspx
More generally, you should search for a Windows way to peek at the Windows' (keyboard?) event queue.
I'm not sure this could identify which DLL (if it's not originated by the material, see the defective keyboard hypothesis) is posting the events, but that's worth a try (Java for example, would enables to stuff a custom event queue that would trace info about a Java-poster).
Even if you can't identify the posting DLL, running the "key captuyre" on both the Windows host that has the Citrix window, and the Windows host that you are accessing via Citrix, may give you hints as to where the heck the key strokes originate...
Good luck, and keep us informed,
J.
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