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• when compiling,I write " gcc -g -Wall dene2 dene2.c", then gcc emits some trace

  - by gcc

  when I compile my code,I write " gcc -g -Wall dene2 dene2.c" in the console. then gcc emits some things on the screen. I havenot understand what it is and I cannot consturct any meaning. I have sorted in google but I havenot seen any information about thing which gcc emits on screen I am not saying examining all of the things which is at below,just show me "how to catch fish". (I couldnot find meaningful title ,for that reason ,sorry,) dene2: In function `_start': /build/buildd/eglibc-2.10.1/csu/../sysdeps/i386/elf/start.S:65: multiple definition of `_start' /usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/crt1.o:/build/buildd/eglibc-2.10.1 /csu/../sysdeps/i386/elf/start.S:65: first defined here dene2:(.rodata+0x0): multiple definition of `_fp_hw' /usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/crt1.o:(.rodata+0x0): first defined here dene2: In function `_fini': (.fini+0x0): multiple definition of `_fini' /usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/crti.o:(.fini+0x0): first defined here dene2:(.rodata+0x4): multiple definition of `_IO_stdin_used' /usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/crt1.o:(.rodata.cst4+0x0): first defined here dene2: In function `__data_start': (.data+0x0): multiple definition of `__data_start' /usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/crt1.o:(.data+0x0): first defined here dene2: In function `__data_start': (.data+0x4): multiple definition of `__dso_handle' /usr/lib/gcc/i486-linux-gnu/4.4.1/crtbegin.o:(.data+0x0): first defined here dene2: In function `_init': (.init+0x0): multiple definition of `_init' /usr/lib/gcc/i486-linux-gnu/4.4.1/../../../../lib/crti.o:(.init+0x0): first defined here /tmp/ccMlGkkV.o: In function `main': /home/fatih/Desktop/dene2.c:5: multiple definition of `main' dene2:(.text+0xb4): first defined here /usr/lib/gcc/i486-linux-gnu/4.4.1/crtend.o:(.dtors+0x0): multiple definition of `__DTOR_END__' dene2:(.dtors+0x4): first defined here collect2: ld returned 1 exit status

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• Good way to capture/replay sessions from Apache Log?

  - by Mark Harrison

  For performance testing, I would like to capture some traffic from a production server and use that as a basis to replay the request to a test server in order to simulate a realistic load in our development environment. These are all stateless queries, so no issues regarding cookies, sessions, etc. The Apache log timestamps everything down to a 1 second resolution, but that's not fine enough granularity for our peak times. What's the best way to capture more fine-grained timestamps for replay? And is there some ab-like load generating program that can use this data to replicate load?

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• Save a camera photo with an overlayed image - iphone SDK

  - by user157733

  I think this should be simple but I am having some difficulty implementing it. I take a photo from the camera, the user can then move and scale it. They then choose "use" and they get a preview of their image. Now what I want to do is overlay an image on top of this preview image - which is also ok. But the part I am having difficulty is then I want to save the photo taken WITH the image that is over it into the library. I just have a UIView with my overlay image about the UIView where my camera photo is previewed. I guess I just need to take a screen capture of these? I don't want to loose resolution OR end up with my UI buttons etc in the final image. Any suggestions or links would be really useful. Thanks :-)

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• How to clear a bean field with Stripes.

  - by Davoink

  In a JSP I have the following field: <stripes:text name="email"/> This field is in my action bean(snippet): public class CreateClaim implements ActionBean { private String email; public void setEmail(String email) { this.email = email; } public String getEmail() { return email; } public Resolution alc(){ email = "poodle"; return new ForwardResolution("aForward.jsp"); } } In the alc() methos I am setting email to be null. But when the pages renders the value of the email field is exactly as it was entered originally. Is there a way of clearing this field once and event has triggered? Cheers Dave

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• Flexible design - customizable entity model, UI and workflow

  - by Ngm

  Hi All, I want to achieve the following aspects in the software I am building: 1. Customizable entity model 2. Customizable UI 3. Customizable workflow I have thought about an approach to achieve this, I want you to review this and make suggestions: Entity objects should be plain objects and will hold just data Separate Entity model and DB Schema by using an framework (like NHibernate?). This will allow easy modification of entity objects. Business logic to fetch/modify entities has to be granular enough so that they can be invoked as part of the workflow. Business objects should not hold any state, and hence will contain only static methods The workflow will decide depending upon the "state" of an entity/entities which methods on business object/objects to invoke. The workflow should obtain the results of the processing and then pass on the business objects to the appropriate UI screen. The UI screen has to contain instructions about how to display a given entity/entites. Possibly the UI has to be generated dynamically based on a set of UI instructions. (like XUL) What do you think about this approach? Suggest which existing frameworks (like NHiberante, Window Workflow) fit into this model, so that I will not spend time on coding these frameworks Also suggest is there any asp.net framework that can generate dynamic asp.net ajax pages based on a set of UI instructions (like Mozilla XUL)? I have recently been exploring Apache Ofbiz and was impressed by its ability to customize most areas of the application: UI, workflow, entities. Is there any similar (not necessarily an ERP system) application developed in C#/.Net which offers a similar level of customization? I am looking for examples of applications developed in C# that are highly customizable in terms of UI, Workflow and Entity Model

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• iPhone multitouch - Some touches dispatch touchesBegan: but not touchesMoved:

  - by zkarcher

  I'm developing a multitouch application. One touch is expected to move, and I need to track its position. For all other touches, I need to track their beginnings and endings, but their movement is less critical. Sometimes, when 3 or more touches are active, my UIView does not receive touchesMoved: events for the moving touch. This problem is intermittent, and can always be reproduced after a few attempts: Touch the screen with 2 fingers. Touch the screen with another finger, and move this finger around. The moving finger always dispatches touchesBegan: and touchesEnded:, but sometimes does not dispatch any touchesMoved: events. Whenever the moving touch does not dispatch touchesMoved: events, I can force it to dispatch touchesMoved: if I move one of the other touches. This seems to "force" every touch to recheck its position, and I successfully receive a touchesMoved: event. However, this is clumsy. This bug is reproducible on both the iPhone 2G and 3GS models. My question is: How do I ensure that my moving touch dispatches touchesMoved: events? Does anyone have any experience with this issue? I've spent few fruitless days searching the web for answers. I found a post describing how to sync touch events with the VBL: http://www.71squared.com/2009/04/maingameloop-changes/ . However, this has not solved the problem. I really don't know how to proceed. Any help is appreciated!

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• Dynamically pixelate an html image element

  - by Chris Armstrong

  I'm to take an image on a webpage, and then use javascript (or whatever would be best suited) to dynamically 'pixelate' it (e.g. into 20px squares). Then, as the user scrolls down the page, I need the image to gradually increase in resolution, till it is no longer pixelated. Any ideas how I could go about doing this? I realise I could use php to resize an image and several times and just switch out the image, but that would require loading several extra images. Also, I know I could probably do the effect with flash & pixelbender, but I want to achieve it within the limitations of HTML5, CSS & Javascript if possible. Appreciate any thoughts!

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• CAScrollLayer doesn't scroll!

  - by Cliff

  Maybe it's because it's late. Whatever the reason I can't figure out why I'm having trouble with a simple CSScrollLayer example I'm trying. I add a 50 pixel Eclipse icon to a view based project and in my initialize method (called from initWithNibName:bundle:) I have this: -(void) initialize { CAScrollLayer *scrollLayer = [CAScrollLayer layer]; scrollLayer.backgroundColor = [[UIColor blackColor] CGColor]; CGRect bounds = self.view.bounds; scrollLayer.bounds = CGRectMake(0, 0, bounds.size.width, bounds.size.height); scrollLayer.contentsRect = CGRectMake(0, 0, bounds.size.width + 800, bounds.size.height + 800); scrollLayer.borderWidth = 2.5; scrollLayer.borderColor = [[UIColor redColor] CGColor]; scrollLayer.position = CGPointMake(self.view.center.x, self.view.center.y - 20); scrollLayer.scrollMode = kCAScrollBoth; [self.view.layer addSublayer:scrollLayer]; UIImage *image = [UIImage imageNamed:@"eclipse32.gif"]; for(int i=0; i<6; i++) { layer = [CALayer layer]; layer.backgroundColor = [[UIColor blackColor] CGColor]; layer.bounds = CGRectMake(0, 0, 100, 100); layer.contents = (id)[image CGImage]; layer.position = CGPointMake(layer.bounds.size.width * i, self.view.center.y); [scrollLayer addSublayer:layer]; } // [button removeFromSuperview]; // [self.view addSubview:button]; // self.view.userInteractionEnabled = YES; [image release]; } The scroll layer shows, the icon is repeated on the layer I have a border around the edge of the screen. Everything is lovely except I can't scroll the icons. I've tried with/without setting scroll mode. I've tried with a single stretched icon that falls off screen. I've tried everything. What am I doing wrong?

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• Try all available WSDL IPs with JAX-WS

  - by Asaf

  I'm using JAX-WS to open a service port. When the DNS exposes two IPs for the DNS entry (of the WSDL), the Service tries to use only the first - resulting in a "Failed to access the WSDL at: http://some.url.com/someDocument?wsdl. It failed with: Connection refused: connect" exception. I've found an issue filed against JAX-WS, but with no resolution. this is the comment that describes my problem best. The code is just a one-liner: Service service = Service.create("http://some.url.com/someDocument?wsdl", engineQName); the smarts is exposing those two A records on http://some.url.com/ at the DNS. Can anyone help? 10x,

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• Python pixel manipulation library

  - by silinter

  So I'm going through the beginning stages of producing a game in Python, and I'm looking for a library that is able to manipulate pixels and blit them relatively fast. My first thought was pygame, as it deals in pure 2D surfaces, but it only allows pixel access through pygame.get_at(), pygame.set_at() and pygame.get_buffer(), all of which lock the surface each time they're called, making them slow to use. I can also use the PixelArray and surfarray classes, but they are locked for the duration of their lifetimes, and the only way to blit them to a surface is to either copy the pixels to a new surface, or use surfarray.blit_array, which requires creating a subsurface of the screen and blitting it to that, if the array is smaller than the screen (if it's bigger I can just use a slice of the array, which is no problem). I don't have much experience with PyOpenGL or Pyglet, but I'm wondering if there is a faster library for doing pixel manipulation in, or if there is a faster method, in Pygame, for doing pixel manupilation. I did some work with SDL and OpenGL in C, and I do like the idea of adding vertex/fragment shaders to my program. My program will chiefly be dealing in loading images and writing/reading to/from surfaces.

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• metaclass multiple inheritance inconsistency

  - by Matt Anderson

  Why is this: class MyType(type): def __init__(cls, name, bases, attrs): print 'created', cls class MyMixin: __metaclass__ = MyType class MyList(list, MyMixin): pass okay, and works as expected: created <class '__main__.MyMixin'> created <class '__main__.MyList'> But this: class MyType(type): def __init__(cls, name, bases, attrs): print 'created', cls class MyMixin: __metaclass__ = MyType class MyObject(object, MyMixin): pass Is not okay, and blows up thusly?: created <class '__main__.MyMixin'> Traceback (most recent call last): File "/tmp/junk.py", line 11, in <module> class MyObject(object, MyMixin): pass TypeError: Error when calling the metaclass bases Cannot create a consistent method resolution order (MRO) for bases object, MyMixin

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• How is joystick axis information formatted from a USB Joystick?

  - by aquanar

  I actually just have a rather small question, but I have had the HARDEST time finding information about it. For the application I am programming for, there will be a 3-axis joystick being connected via USB to a Windows XP computer, and it is being handled by directx. That information will then be sent elsewhere to an embedded controller. I don't need to know too much of the intricacies of how directx handles it, but I want to know, how is the data for the axes formatted? Nearest I can tell, most joysticks nowadays have 12 bits of resolution, so is the data output as a 12-bit 2's compliment number? And after that, is it represented as a signed 16-bit integer when it is captured from directx? I'd like to know this so I know how I will work with the data at the embedded platform side, such as how to format the packets sending data to the embedded side, as well ashow to use the information once it is on the embedded side.

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• Problem Showing Sensors Details

  - by Skatephone

  Hi, i'm looking to show detail about sensors in an Actvity but when i put my app in to my phone i manage to view only details about the accellerometer, but the program says that i have 4 sensors: Accellerometer, Magnetic field, Orientation and Temperature. I'm using Android 1.6 and a htc Tattoo for testing. This is my code: public class SensorInfo extends Activity { private SensorManager mSensorManager; TextView mTextAcc,mTextGyr,mTextLig,mTextMag,mTextOri, mTextPre,mTextPro,mTextTem, mSensorsTotTitle,mSensorAvailablesTitle,mTextAccTitle,mTextGyrTitle,mTextLigTitle,mTextMagTitle,mTextOriTitle, mTextPreTitle,mTextProTitle,mTextTemTitle; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.detaillayout); // Get the texts fields of the layout and setup to invisible setTextViews(); // Get the SensorManager mSensorManager= (SensorManager) getSystemService(SENSOR_SERVICE); // List of Sensors Available List<Sensor> msensorList = mSensorManager.getSensorList(Sensor.TYPE_ALL); // Print Sensor Details Sensor sens; int type,i; String text = new String(""); // Do the list of available sensors on a String and print detail about each sensor for (i=0;i<msensorList.size();i++){ sens = msensorList.get(i); type = sens.getType(); text = " - "+getString(R.string.power)+" "+String.valueOf(sens.getPower())+"mA\n"; text+= " - "+getString(R.string.resolution)+" "+String.valueOf(sens.getResolution())+"\n"; text+= " - "+getString(R.string.maxrange)+" "+String.valueOf(sens.getMaximumRange ())+"\n"; text+= " - "+getString(R.string.vendor)+" "+sens.getVendor()+"\n"; text+= " - "+getString(R.string.version)+" "+String.valueOf(sens.getVersion()); switch(type) { // Check the type of Sensor that generate the event and show is resolution case Sensor.TYPE_ACCELEROMETER: mTextAccTitle.setVisibility(0); mTextAccTitle.setMaxHeight(30); mTextAcc.setVisibility(0); mTextAcc.setMaxHeight(100); mTextAcc.setText(text); // Print data of the Sensor break; case Sensor.TYPE_GYROSCOPE: mTextGyrTitle.setVisibility(0); mTextGyr.setVisibility(0); mTextGyr.setText(text); // Print data of the Sensor break; case Sensor.TYPE_LIGHT: mTextLigTitle.setVisibility(0); mTextLig.setVisibility(0); mTextLig.setText(text); // Print data of the Sensor break; case Sensor.TYPE_MAGNETIC_FIELD: mTextMagTitle.setVisibility(0); mTextMag.setVisibility(0); mTextMag.setText(text); // Print data of the Sensor break; case Sensor.TYPE_ORIENTATION: mTextOriTitle.setVisibility(0); mTextOri.setVisibility(0); mTextOri.setText(text); // Print data of the Sensor break; case Sensor.TYPE_PRESSURE: mTextPreTitle.setVisibility(0); mTextPre.setVisibility(0); mTextPre.setText(text); // Print data of the Sensor break; case Sensor.TYPE_PROXIMITY: mTextProTitle.setVisibility(0); mTextPro.setVisibility(0); mTextPro.setText(text); // Print data of the Sensor break; case Sensor.TYPE_TEMPERATURE: mTextTemTitle.setVisibility(0); mTextTem.setVisibility(0); mTextTem.setText(text); // Print data of the Sensor break; } } } // Get the texts fields of the layout and setup to invisible void setTextViews(){ mTextAccTitle = (TextView) findViewById(R.id.sensorAccTitle); mTextAccTitle.setVisibility(4); mTextAccTitle.setMaxHeight(0); mTextAcc = (TextView) findViewById(R.id.sensorAcc); mTextAcc.setMaxHeight(0); mTextAcc.setVisibility(4); mTextGyrTitle = (TextView) findViewById(R.id.sensorGyrTitle); mTextGyrTitle.setVisibility(4); mTextGyrTitle.setMaxHeight(0); mTextGyr = (TextView) findViewById(R.id.sensorGyr); mTextGyr.setVisibility(4); mTextGyrTitle.setMaxHeight(0); mTextLigTitle = (TextView) findViewById(R.id.sensorLigTitle); mTextLigTitle.setVisibility(4); mTextLigTitle.setMaxHeight(0); mTextLig = (TextView) findViewById(R.id.sensorLig); mTextLig.setVisibility(4); mTextLig.setMaxHeight(0); mTextMagTitle = (TextView) findViewById(R.id.sensorMagTitle); mTextMagTitle.setVisibility(4); mTextMagTitle.setMaxHeight(0); mTextMag = (TextView) findViewById(R.id.sensorMag); mTextMag.setVisibility(4); mTextMag.setMaxHeight(0); mTextOriTitle = (TextView) findViewById(R.id.sensorOriTitle); mTextOriTitle.setVisibility(4); mTextOriTitle.setMaxHeight(0); mTextOri = (TextView) findViewById(R.id.sensorOri); mTextOri.setVisibility(4); mTextOri.setMaxHeight(0); mTextPreTitle = (TextView) findViewById(R.id.sensorPreTitle); mTextPreTitle.setVisibility(4); mTextPreTitle.setMaxHeight(0); mTextPre = (TextView) findViewById(R.id.sensorPre); mTextPre.setVisibility(4); mTextPre.setMaxHeight(0); mTextProTitle = (TextView) findViewById(R.id.sensorProTitle); mTextProTitle.setVisibility(4); mTextProTitle.setMaxHeight(0); mTextPro = (TextView) findViewById(R.id.sensorPro); mTextPro.setVisibility(4); mTextPro.setMaxHeight(0); mTextTemTitle = (TextView) findViewById(R.id.sensorTemTitle); mTextTemTitle.setVisibility(4); mTextTemTitle.setMaxHeight(0); mTextTem = (TextView) findViewById(R.id.sensorTem); mTextTem.setVisibility(4); mTextTem.setMaxHeight(0); } } Tank's Valerio From Italy

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• Adding a UIPickerView over a UITabBarController

  - by Kai

  I'm trying to have a UIPickerView slide from the bottom of the screen (over the top of a tab bar) but can't seem to get it to show up. The actual code for the animation is coming from one of Apple's example code projects (DateCell). I'm calling this code from the first view controller (FirstViewController.m) under the tab bar controller. - (IBAction)showModePicker:(id)sender { if (self.modePicker.superview == nil) { [self.view.window addSubview:self.modePicker]; // size up the picker view to our screen and compute the start/end frame origin for our slide up animation // // compute the start frame CGRect screenRect = [[UIScreen mainScreen] applicationFrame]; CGSize pickerSize = [self.modePicker sizeThatFits:CGSizeZero]; CGRect startRect = CGRectMake(0.0, screenRect.origin.y + screenRect.size.height, pickerSize.width, pickerSize.height); self.modePicker.frame = startRect; // compute the end frame CGRect pickerRect = CGRectMake(0.0, screenRect.origin.y + screenRect.size.height - pickerSize.height, pickerSize.width, pickerSize.height); // start the slide up animation [UIView beginAnimations:nil context:NULL]; [UIView setAnimationDuration:0.3]; // we need to perform some post operations after the animation is complete [UIView setAnimationDelegate:self]; self.modePicker.frame = pickerRect; // shrink the vertical size to make room for the picker CGRect newFrame = self.view.frame; newFrame.size.height -= self.modePicker.frame.size.height; self.view.frame = newFrame; [UIView commitAnimations]; // add the "Done" button to the nav bar self.navigationItem.rightBarButtonItem = self.doneButton; }} Whenever this action fires via a UIBarButtonItem that lives in a UINavigationBar (which is all under the FirstViewController) nothing happens. Can anyone please offer some advice?

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• emacs: x-popup-menu max size constraints?

  - by Cheeso

  I'm working on an intellisense or code-completion capability for C#. So far, so good. Right now I have basic completion working. There are 2 ways to request completion. The first cycles through all the potential matches. The second presents a popup menu of the matches. It works for types: And also for local variables: I'm confronting two problems with x-popup-menu: the popup menu can expand to consume all available screen space, when the number of choices is large. Literally it can obscure the entire screen. The silly thing is, it's scrollable. First it expands to consume all available space, then it also becomes scrollable. Is there a way I can limit the maximum size of x-popup-menu? To specify the position of the popup menu, I pass in a position, and x-popup-menu uses that as the *middle*, not the left, of the top line of the menu. Why middle? who knows. What this means is, if I specify (40 . 60) for the location of the menu, and the menu happens to be 100 pixels wide, the menu will extend beyond the left border of the emacs window. You can see this in the 2nd image above. If I knew how wide the popup would be before specifying the position, I could compensate. But I don't. Is there a workaround? Is there a way to get x-popup-menu to take its position as the LEFT rather than the middle.

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• BlackBerry:Reduce space between 2 buttons in HorizontalFieldManager

  - by user469999

  hi In blackberry i have created a horizontal field managar and added some buttons of small size to it to display toolbar at the bottom of the screen.But my problem is there is too much space between the 2 buttons.I have to reduce this space between 2 buttons so that i can manage to place atleast 6 buttons at the bottom of the screen.I am using the BFmsg.setMargin(305,0,0,40) statement. can anyone please help me on this. Following is my code : BFcontacts = new ButtonField("Cnt") { protected void paint(Graphics graphics) { //Bitmap contactsbitmap = Bitmap.getBitmapResource("contacts.jpg"); //graphics.drawBitmap(0, 0, contactsbitmap.getWidth(), contactsbitmap.getHeight(), contactsbitmap, 0, 0); graphics.setColor(Color.WHITE); graphics.drawText("Cnt",0,0); } }; BFcontacts.setMargin(305,0,0,10);//vertical pos,0,0,horizontal pos HFM.add(BFcontacts); BFmsg = new ButtonField("Msgs") { protected void paint(Graphics graphics) { //Bitmap msgsbitmap = Bitmap.getBitmapResource("messages.jpg"); //graphics.drawBitmap(0, 0, msgsbitmap.getWidth(), msgsbitmap.getHeight(), msgsbitmap, 0, 0); graphics.setColor(Color.WHITE); graphics.drawText("Msgs",0,0); } }; BFmsg.setMargin(305,0,0,40);//vertical pos,0,0,horizontal pos : original HFM.add(BFmsg); add(HFM) Thanks in advance

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• Looping HTML5 audio on the iPhone

  - by Peeps

  I'm trying to make a HTML5 webapp that simply plays a sound over and over and over again, on my iPhone. I don't know any Obj-C to do it natively. What I have works fine, but the sound only plays once: <!DOCTYPE html> <html> <head> <title>noisemaker!</title> <meta http-equiv="content-type" content="text/html; charset=utf-8" /> <meta name="viewport" content="maximum-scale=1, minimum-scale=1, width=device-width, user-scalable=no" /> <meta name="apple-mobile-web-app-capable" content="yes" /> </head> <body> <audio src="noise.mp3" autoplay controls loop></audio> </body> </html> Is there a way to either bypass the QuickTime audio screen and loop it in the webpage, or get the QuickTime audio screen to loop the sound?

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• MS Surface Tag Visualizer steals contact events

  - by Isak Savo

  I'm struggling with the TagVisualizer control on an MS Surface project. In theory the control seems great, allowing you to respond to input from real world physical objects The problem is that the control will cover the entire screen (since I want to capture tags on the entire screen) and as such, no other controls in my app will receive the touch events. (Unless, they are direct ascendants in the visual tree). In my app, I want to have a "layer" type of a approach, where each layer can respond to (contact) input: Window `- Grid `- LayersPanel `- TagVisualizer `- Layer 1 `- Layer 2 `- Layer 3 `- Layer 4 Now it doesn't matter where I put the tag visualizer, it's always going to steal contact events from all or some of the other layers. (due to the nature of RoutedEvents) To me, it seems like the control is completely useless in practice as it will always interfere with your application's other controls. What am I missing here? So my questions are: Any suggestions on how to work around this? Has anyone used TagVisualizers in a similar scenario? If so, how did you solve this? By the way, the layers all work fine, since they will only steal events that are directly on top of their sub elements (the rest of the layer is invisible to hit testing)

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• Java Swing Threading with Updatable JProgressBar

  - by Anthony Sparks

  First off I've been working with Java's Concurency package quite a bit lately but I have found an issue that I am stuck on. I want to have and Application and the Application can have a SplashScreen with a status bar and the loading of other data. So I decided to use SwingUtilities.invokeAndWait( call the splash component here ). The SplashScreen then appears with a JProgressBar and runs a group of threads. But I can't seem to get a good handle on things. I've looked over SwingWorker and tried using it for this purpose but the thread just returns. Here is a bit of sudo-code. and the points I'm trying to achieve. Have an Application that has a SplashScreen that pauses while loading info Be able to run multiple threads under the SplashScreen Have the progress bar of the SplashScreen Update-able yet not exit until all threads are done. Launching splash screen try { SwingUtilities.invokeAndWait( SplashScreen ); } catch (InterruptedException e) { } catch (InvocationTargetException e) { } Splash screen construction SplashScreen extends JFrame implements Runnable{ public void run() { //run threads //while updating status bar } } I have tried many things including SwingWorkers, Threads using CountDownLatch's, and others. The CountDownLatch's actually worked in the manner I wanted to do the processing but I was unable to update the GUI. When using the SwingWorkers either the invokeAndWait was basically nullified (which is their purpose) or it wouldn't update the GUI still even when using a PropertyChangedListener. If someone else has a couple ideas it would be great to hear them. Thanks in advance.

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• Password Protect for fun

  - by WaZ

  Hi there, I am working on a blog for my friend. I want to gift him the blog on his birthday. Just for some fun I want to restrict access to the blog. e.g. The website. www.myfriend.com opens with a splash screen. The screen has his picture and a question regarding him. these questions can be. If you know me.... What is my nickname? Whats my fav. sport? etc etc This restriction should not be based on the default user management offered by Wordpress and should involve a simple answer to a question which is randomly generated from list of questions once the visior gives a correct answer the page redirects to the blog please note even if the user types www.myfriend.com/blog they should be able to see it. this restriction is not a restriction in true sense but just involves some user interaction. Its just for fun but adds a bit of spice. Much appreciated. Thanks.

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• capturing video from ip camera

  - by Ruby

  I am trying to capture video from ip camera into my application , its giving exception com.sun.image.codec.jpeg.ImageFormatException: Not a JPEG file: starts with 0x0d 0x0a at sun.awt.image.codec.JPEGImageDecoderImpl.readJPEGStream(Native Method) at sun.awt.image.codec.JPEGImageDecoderImpl.decodeAsBufferedImage(Unknown Source) at test.AxisCamera1.readJPG(AxisCamera1.java:130) at test.AxisCamera1.readMJPGStream(AxisCamera1.java:121) at test.AxisCamera1.readStream(AxisCamera1.java:100) at test.AxisCamera1.run(AxisCamera1.java:171) at java.lang.Thread.run(Unknown Source) its giving exception at image = decoder.decodeAsBufferedImage(); Here is the code i am trying private static final long serialVersionUID = 1L; public boolean useMJPGStream = true; public String jpgURL = "http://ip here/video.cgi/jpg/image.cgi?resolution=640×480"; public String mjpgURL = "http://ip here /video.cgi/mjpg/video.cgi?resolution=640×480"; DataInputStream dis; private BufferedImage image = null; public Dimension imageSize = null; public boolean connected = false; private boolean initCompleted = false; HttpURLConnection huc = null; Component parent; /** Creates a new instance of AxisCamera */ public AxisCamera1(Component parent_) { parent = parent_; } public void connect() { try { URL u = new URL(useMJPGStream ? mjpgURL : jpgURL); huc = (HttpURLConnection) u.openConnection(); // System.out.println(huc.getContentType()); InputStream is = huc.getInputStream(); connected = true; BufferedInputStream bis = new BufferedInputStream(is); dis = new DataInputStream(bis); if (!initCompleted) initDisplay(); } catch (IOException e) { // incase no connection exists wait and try // again, instead of printing the error try { huc.disconnect(); Thread.sleep(60); } catch (InterruptedException ie) { huc.disconnect(); connect(); } connect(); } catch (Exception e) { ; } } public void initDisplay() { // setup the display if (useMJPGStream) readMJPGStream(); else { readJPG(); disconnect(); } imageSize = new Dimension(image.getWidth(this), image.getHeight(this)); setPreferredSize(imageSize); parent.setSize(imageSize); parent.validate(); initCompleted = true; } public void disconnect() { try { if (connected) { dis.close(); connected = false; } } catch (Exception e) { ; } } public void paint(Graphics g) { // used to set the image on the panel if (image != null) g.drawImage(image, 0, 0, this); } public void readStream() { // the basic method to continuously read the // stream try { if (useMJPGStream) { while (true) { readMJPGStream(); parent.repaint(); } } else { while (true) { connect(); readJPG(); parent.repaint(); disconnect(); } } } catch (Exception e) { ; } } public void readMJPGStream() { // preprocess the mjpg stream to remove the // mjpg encapsulation readLine(3, dis); // discard the first 3 lines readJPG(); readLine(2, dis); // discard the last two lines } public void readJPG() { // read the embedded jpeg image try { JPEGImageDecoder decoder = JPEGCodec.createJPEGDecoder(dis); image = decoder.decodeAsBufferedImage(); } catch (Exception e) { e.printStackTrace(); disconnect(); } } public void readLine(int n, DataInputStream dis) { // used to strip out the // header lines for (int i = 0; i < n; i++) { readLine(dis); } } public void readLine(DataInputStream dis) { try { boolean end = false; String lineEnd = "\n"; // assumes that the end of the line is marked // with this byte[] lineEndBytes = lineEnd.getBytes(); byte[] byteBuf = new byte[lineEndBytes.length]; while (!end) { dis.read(byteBuf, 0, lineEndBytes.length); String t = new String(byteBuf); System.out.print(t); // uncomment if you want to see what the // lines actually look like if (t.equals(lineEnd)) end = true; } } catch (Exception e) { e.printStackTrace(); } } public void run() { System.out.println("in Run..................."); connect(); readStream(); } @SuppressWarnings("deprecation") public static void main(String[] args) { JFrame jframe = new JFrame(); jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); AxisCamera1 axPanel = new AxisCamera1(jframe); new Thread(axPanel).start(); jframe.getContentPane().add(axPanel); jframe.pack(); jframe.show(); } } Any suggestions what I am doing wrong here??

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• Windows - VBScript - Determine IP address of computer on network

  - by tward

  I have written some VBScripts to automate tasks that I perform on computers over the network. These work great for most tasks however within our network we have problems with the IP address in DNS being correct all the time. This mainly occurs with laptops where we have different IP ranges for machines on the wireless and wired network. For example a machine may boot up wired in the morning and get an IP address: 10.10.10.1 When it switches to wireless it will obtain an address in a different subnet: 10.11.10.1 When you try to connect to that machine it still returns the old IP address (10.10.10.1) even though the computer now has a new one. I have found that I can still connect to that computer's C$ share via \computer name\c$ even though the machine does not ping. Obviously there is some other kind of address resolution going on, my question is how do I harness this to allow my VBScripts connect to WMI? Thanks!

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• Positioning problem in VIsta when Aero Theme is enabled

  - by Adeel Rehman

  Hi, I have a Windows form which has tab pages. On a Tab Page, I have a Combo Box. When I click the combobox a drop down opens up just below the combo box to give the impression of a drop down. The drop down is a windows form and this is how I set its position Popup.Location = control.PointToScreen(parentcontrol.PointToClient(new System.Drawing.Point(0, control.Height))); Popup = drop down that opens below the combo box (Windows Form) control = my combo box (Combo Box) parentcontrol = the windows form on which the control is present (Parent Form) Problem:- The X coordinate is not plotted correctly on the screen with Aero theme enabled. This works perfectly fine on XP (with some variance in y due to tablelayout panel i assume). But when i use the same code on Vista with Aero theme enabled the x-cordinate wanders away about 20-30 pixels. If I Turn Aero theme off on Vista, it works fine. I have found the X and Y coordiantes calculated in both cases are the same. But the way Vista draws these coordinates on the screen (when aero theme is enabled) is different. Is there any solution to this problem? Thanks, Adeel Rehman.

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• Why doesn't Inno Setup compiler set the version info correctly from hudson?

  - by Tim

  If I run Inno Setup compiler from a command line/batch file it creates an exe with the version information in the file name. However, when I run from hudson (same command line) I don't get the version information. Perhaps I am missing something. Is this a known issue? This is the way I am doing it in the iss script file. #define FileVerStr GetFileVersion(SrcApp) EDIT: The env vars are all set for all users - not just my login - so the service has access to everything that the command line build does. EDIT: See my answer for a resolution of this.

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• Why C# calls different overloaded method for different values of same type?

  - by Fabio Veronez

  Hello all, I have one doubt concerning c# method overloading call resolution. Let's suppose I have the following C# code: enum MyEnum { Value1, Value2 } public void test() { method(0); // this calls method(MyEnum) method(1); // this calls method(object) } public void method(object o) { } public void method(MyEnum e) { } Note that I know how to make it work but I would like to know why for one value of int (0) it calls one method and for another (1) it calls another. It sounds awkward since both values have the same type (int) but they are "linked" for different methods. Ps.: This is my first question here, i'm sorry if I made something wrong. =P

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