Last few days in Aricent !!

After a long effort in search of Product Based Company, I ultimately got an opportunity in Harman, Bangalore. After searching in Wikipedia and Linkedin websites I got to know that JBL Speakers and many other sound technology are their products.

An interesting fact was that the very first computer I bought was when I completed my 12th examination, at that moment I knew nothing (equal to zero) about Computers. An uncle said me to buy speakers along with the PC and I landed on JBL Speakers, I never dreamt of being a part of that JBL Speaker company in the future :)

The last few days in Aricent was Heaven with my friends nearby.
Starting with Banu Prakash Reddy, please find his pic below, he is kinda funny :). Nah nah he is not bald lolz, he had shaved his hair and just before few days some leaves have grown on his barren head :)

He has a official slogan which he always says to his managers or leaders, and it is that "No I will not work on Saturdays but I can work on Sundays", if asked with what he is busy with he smiles always, a funny character. He always wanted to go to his native Hyderabad and work from there, he too has been offered a job in Hyderabad and he is pretty happy cos he can now roam with his school/college friends.

There is one more fellow named Hariharan Rajendran. He is actually a small boy but 3 years elder to me and is married and has now a beautiful girl baby, very interesting character too :), please find his pic below.

Nah nah, he is not mad but it is his pose for a selfie I asked for. He is also not bald but he has so much of hairs that he attracted a fresher lolz. He is also an all time laughing boy. If you see him you cannot judge that he is married and is a father of a baby girl. He also has got an offer in an another company and is a happy man.

There is one more boy named Karthikeyan Rajakumar. I am in search of a selfie from him but he is not giving, hence attaching his fb pic.
He claims to be having a Spike on his head and he claims to be a TT player but lost to me and Hari :). He plays "Touch" games very well but fails to play it the real game lolz.

Interesting Keyboard Shortcuts

More than 100 Keyboard Shortcuts must read & Share

Keyboard Shortcuts (Microsoft Windows)
1. CTRL+C (Copy)
2. CTRL+X (Cut)
3. CTRL+V (Paste)
4. CTRL+Z (Undo)
5. DELETE (Delete)
6. SHIFT+DELETE (Delete the selected item permanently without placing the item in the Recycle Bin)
7. CTRL while dragging an item (Copy the selected item)
8. CTRL+SHIFT while dragging an item (Create a shortcut to the selected item)
9. F2 key (Rename the selected item)
10. CTRL+RIGHT ARROW (Move the insertion point to the beginning of the next word)
11. CTRL+LEFT ARROW (Move the insertion point to the beginning of the previous word)
12. CTRL+DOWN ARROW (Move the insertion point to the beginning of the next paragraph)
13. CTRL+UP ARROW (Move the insertion point to the beginning of the previous paragraph)
14. CTRL+SHIFT with any of the arrow keys (Highlight a block of text)
SHIFT with any of the arrow keys (Select more than one item in a window or on the desktop, or select text in a document)
15. CTRL+A (Select all)
16. F3 key (Search for a file or a folder)
17. ALT+ENTER (View the properties for the selected item)
18. ALT+F4 (Close the active item, or quit the active program)
19. ALT+ENTER (Display the properties of the selected object)
20. ALT+SPACEBAR (Open the shortcut menu for the active window)
21. CTRL+F4 (Close the active document in programs that enable you to have multiple documents open simultaneously)
22. ALT+TAB (Switch between the open items)
23. ALT+ESC (Cycle through items in the order that they had been opened)
24. F6 key (Cycle through the screen elements in a window or on the desktop)
25. F4 key (Display the Address bar list in My Computer or Windows Explorer)
26. SHIFT+F10 (Display the shortcut menu for the selected item)
27. ALT+SPACEBAR (Display the System menu for the active window)
28. CTRL+ESC (Display the Start menu)
29. ALT+Underlined letter in a menu name (Display the corresponding menu) Underlined letter in a command name on an open menu (Perform the corresponding command)
30. F10 key (Activate the menu bar in the active program)
31. RIGHT ARROW (Open the next menu to the right, or open a submenu)
32. LEFT ARROW (Open the next menu to the left, or close a submenu)
33. F5 key (Update the active window)
34. BACKSPACE (View the folder onelevel up in My Computer or Windows Explorer)
35. ESC (Cancel the current task)
36. SHIFT when you insert a CD-ROM into the CD-ROM drive (Prevent the CD-ROM from automatically playing)
Dialog Box - Keyboard Shortcuts
1. CTRL+TAB (Move forward through the tabs)
2. CTRL+SHIFT+TAB (Move backward through the tabs)
3. TAB (Move forward through the options)
4. SHIFT+TAB (Move backward through the options)
5. ALT+Underlined letter (Perform the corresponding command or select the corresponding option)
6. ENTER (Perform the command for the active option or button)
7. SPACEBAR (Select or clear the check box if the active option is a check box)
8. Arrow keys (Select a button if the active option is a group of option buttons)
9. F1 key (Display Help)
10. F4 key (Display the items in the active list)
11. BACKSPACE (Open a folder one level up if a folder is selected in the Save As or Open dialog box)

Microsoft Natural Keyboard Shortcuts
1. Windows Logo (Display or hide the Start menu)
2. Windows Logo+BREAK (Display the System Properties dialog box)
3. Windows Logo+D (Display the desktop)
4. Windows Logo+M (Minimize all of the windows)
5. Windows Logo+SHIFT+M (Restorethe minimized windows)
6. Windows Logo+E (Open My Computer)
7. Windows Logo+F (Search for a file or a folder)
8. CTRL+Windows Logo+F (Search for computers)
9. Windows Logo+F1 (Display Windows Help)
10. Windows Logo+ L (Lock the keyboard)
11. Windows Logo+R (Open the Run dialog box)
12. Windows Logo+U (Open Utility Manager)
13. Accessibility Keyboard Shortcuts
14. Right SHIFT for eight seconds (Switch FilterKeys either on or off)
15. Left ALT+left SHIFT+PRINT SCREEN (Switch High Contrast either on or off)
16. Left ALT+left SHIFT+NUM LOCK (Switch the MouseKeys either on or off)
17. SHIFT five times (Switch the StickyKeys either on or off)
18. NUM LOCK for five seconds (Switch the ToggleKeys either on or off)
19. Windows Logo +U (Open Utility Manager)
20. Windows Explorer Keyboard Shortcuts
21. END (Display the bottom of the active window)
22. HOME (Display the top of the active window)
23. NUM LOCK+Asterisk sign (*) (Display all of the subfolders that are under the selected folder)
24. NUM LOCK+Plus sign (+) (Display the contents of the selected folder)

MMC Console keyboard shortcuts
1. SHIFT+F10 (Display the Action shortcut menu for the selected item)
2. F1 key (Open the Help topic, if any, for the selected item)
3. F5 key (Update the content of all console windows)
4. CTRL+F10 (Maximize the active console window)
5. CTRL+F5 (Restore the active console window)
6. ALT+ENTER (Display the Properties dialog box, if any, for theselected item)
7. F2 key (Rename the selected item)
8. CTRL+F4 (Close the active console window. When a console has only one console window, this shortcut closes the console)

Remote Desktop Connection Navigation
1. CTRL+ALT+END (Open the Microsoft Windows NT Security dialog box)
2. ALT+PAGE UP (Switch between programs from left to right)
3. ALT+PAGE DOWN (Switch between programs from right to left)
4. ALT+INSERT (Cycle through the programs in most recently used order)
5. ALT+HOME (Display the Start menu)
6. CTRL+ALT+BREAK (Switch the client computer between a window and a full screen)
7. ALT+DELETE (Display the Windows menu)
8. CTRL+ALT+Minus sign (-) (Place a snapshot of the active window in the client on the Terminal server clipboard and provide the same functionality as pressing PRINT SCREEN on a local computer.)
9. CTRL+ALT+Plus sign (+) (Place asnapshot of the entire client window area on the Terminal server clipboardand provide the same functionality aspressing ALT+PRINT SCREEN on a local computer.)

Microsoft Internet Explorer Keyboard Shortcuts
1. CTRL+B (Open the Organize Favorites dialog box)
2. CTRL+E (Open the Search bar)
3. CTRL+F (Start the Find utility)
4. CTRL+H (Open the History bar)
5. CTRL+I (Open the Favorites bar)
6. CTRL+L (Open the Open dialog box)
7. CTRL+N (Start another instance of the browser with the same Web address)
8. CTRL+O (Open the Open dialog box,the same as CTRL+L)
9. CTRL+P (Open the Print dialog box)
10. CTRL+R (Update the current Web page)
11. CTRL+W (Close the current window)

Few Good Links to remember !

Java

1. http://javarevisited.blogspot.in/
2. http://java-success.blogspot.in/

SIP

1. http://www.siptutorial.net/

This page will be updated if I go through some of the good and knowledgeable sites or blogs.

Thank you for reading !

How to make Ubuntu FULL SCREEN in Oracle's Virtual Box

Sun Microsystem, which later was acquired by Oracle, with its specialized Java Language has created a Virtualization Machine called "Virtual Box". Recently I was trying to install Ubuntu in Virtual Box and to my surprise, after installing Ubuntu, I found that after pressing Right Ctrl + F, Ubuntu was not going to full screen covering all the area of your monitor.

A screenshot of the Ubuntu after pressing Right Ctrl + F.

The screenshot clearly shows the Black spaces in the full screen mode of Ubuntu in Virtual Box along its right and left sides.

If you need to make Ubuntu Full Screen then all we need to do is Install the Guest Additions CD Image by going to Devices->Install Guest Additions CD Image. Find the screenshot below.

Then Click on Run and followed by that the password. See the screenshot below to find how to do.

Provide the password into the box.

After that wait for 1 minute to see the installation getting finished..

Now press Return and power down Ubuntu and the again start Ubuntu to find Ubuntu coming full screen, now your Ubuntu will be coming to full screen.

Very simple and humble steps to make Ubuntu coming full screen in Oracle Virtual box.

Thank you for reading.

How to change lock screen wallpaper in Windows 7

How to Set a Custom Logon Screen Background on Windows 7

Windows 7 makes it possible to change the welcome screen that appears when you start your computer without any third-party software, but this setting is well hidden. You can set any image you like as your background.
If you are using Windows 8 and want to accomplish the same thing, we’ve got you covered with a tutorial on changing the lock screen in Windows 8.
This setting is intended for original equipment manufacturers (OEMs) to customize their systems, but there’s nothing stopping you from using it yourself. All you have to do is change a single registry value and put an image file in the correct location.

Enabling Custom Backgrounds

This feature is disabled by default, so you’ll have to enable it from the Registry Editor. You can also use the Group Policy Editor if you have a Professional version of Windows – scroll down a bit for the Group Policy Editor method.
Launch the Registry Editor by typing regedit into the search box in the Start menu and pressing Enter.

In the Registry Editor, navigate to the following key:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\Background

You’ll see an DWORD value named OEMBackground. If you don’t see it, right-click in the right pane, point to the New submenu and create a new DWORD value with this name.
Double-click the OEMBackground value and set its value to 1.

Note that selecting a new theme in the Appearance and Personalization window will “unset” this registry value. Selecting a theme will change the value of the key to the value stored in the theme’s .ini file, which is probably 0 – if you change your theme, you’ll have to perform this registry tweak again.

Changing the setting in group policy will allow it to persist even when you change your theme, but the Group Policy Editor is only available in Professional editions of Windows.
If you have access to the Group Policy Editor, launch gpedit.msc from the Start menu.

Navigate to the following section in the Group Policy Editor window:

Computer Configuration\Administrative Templates\System\Logon

You’ll find a setting named “Always use custom login background.” Double-click it and set it to Enabled.

Setting An Image

Your image file must be less than 256 KB in size. It’s also a good idea to use an image file that matches the resolution of your monitor, so it won’t look stretched.
Windows looks for the custom logon screen background image in the following directory:

C:\Windows\System32\oobe\info\backgrounds

By default, the info and backgrounds folders don’t exist. Navigate to the C:\Windows\System32\oobe folder and create them yourself by right-clicking inside the folder, pointing to New, and selecting New Folder.

Copy your desired background image to the backgrounds folder and name it backgroundDefault.jpg.

(I can see the inevitable question coming in the comments, so if you like this wallpaper image, you can get it here.)

The change will take effect immediately – no system reboot required. The first time you log out or lock your screen (try the WinKey-L keyboard shortcut), you’ll see your new background.

Simulation of Injecting Multi Touch Event in Android

Sample Code which explains how a Multi Touch Event could be dispatched if the Device has root permissions.

the PointerCoords[], we have to set the pressure and size to 1, the default values are 0.

For

public static MotionEvent obtain (long downTime, long eventTime, int action,
         float x, float y, int metaState)

     Create a new MotionEvent, filling in a subset of the basic motion values. 
    Those not specified here are: device id (always 0), pressure and size (always 1), 
x and y precision (always 1), and edgeFlags (always 0).

since the default pressure and size are 1, so we don't need to set them.

Tips for creating gestures:

1. following the real gesture sequence, since we want to simulate the real gestures

• override the onTouchEvent() to check the real events received by application. These events can also be used for comparison of real user touch events and generated touch events Take browser for example:
  a) @Override public boolean onTouchEvent(MotionEvent event) { Log.i("WebView", event.toString() + event.getAction()); boolean rt = super.onTouchEvent(event); return rt; }
• manually touch screen to get the real gesture sequence from onTouchEvent() in a). We can follow the event sequence when generating events. -- If we don’t follow the gesture event sequence, the instrumented events may be rejected.
• Here is a valid event sequence of zoom gesture, (the downTime is the same for all the events)
  i. ACTION_DOWN of one start point
  ii. ACTION_POINTER_2_DOWN of two start points
  iii.ACTION_MOVE of two middle points
  iv. ACTION_POINTER_2_UP of two end points
  v. ACTION_UP of one end point

2. use the API MotionEvent.obtain correctly

• There are two most used obtain() API.

public static MotionEvent obtain (long downTime, long eventTime, int action, float x, float y, int metaState)

AND

public static MotionEvent obtain(long, long, int, int, android.view.MotionEvent.PointerProperties[], android.view.MotionEvent.PointerCoords[], int, int, float, float, int, int, int, int)

The first one is usually used for single point gestures, like fling, scroll, click etc. The parameters (pressure, size, xPresion, yPresion) for this function are all set to 1.

And the second one is a more general one, and can be used for multi-touch events generation. While for the second one, we have to set the pressure, size in pointerCoords of each touch point to 1.

Here is the example to generate the zoom gesture:

public static void generateZoomGesture(Instrumentation inst,
        long startTime, boolean ifMove, GestureInfo.Point startPoint1,
        GestureInfo.Point startPoint2, GestureInfo.Point endPoint1,
        GestureInfo.Point endPoint2, int duration) {

    if (inst == null || startPoint1 == null
            || (ifMove && endPoint1 == null)) {
        return;
    }

    long eventTime = startTime;
    long downTime = startTime;
    MotionEvent event;
    float eventX1, eventY1, eventX2, eventY2;

    eventX1 = startPoint1.x;
    eventY1 = startPoint1.y;
    eventX2 = startPoint2.x;
    eventY2 = startPoint2.y;

    // specify the property for the two touch points
    PointerProperties[] properties = new PointerProperties[2];
    PointerProperties pp1 = new PointerProperties();
    pp1.id = 0;
    pp1.toolType = MotionEvent.TOOL_TYPE_FINGER;
    PointerProperties pp2 = new PointerProperties();
    pp2.id = 1;
    pp2.toolType = MotionEvent.TOOL_TYPE_FINGER;

    properties[0] = pp1;
    properties[1] = pp2;

    //specify the coordinations of the two touch points
    //NOTE: you MUST set the pressure and size value, or it doesn't work
    PointerCoords[] pointerCoords = new PointerCoords[2];
    PointerCoords pc1 = new PointerCoords();
    pc1.x = eventX1;
    pc1.y = eventY1;
    pc1.pressure = 1;
    pc1.size = 1;
    PointerCoords pc2 = new PointerCoords();
    pc2.x = eventX2;
    pc2.y = eventY2;
    pc2.pressure = 1;
    pc2.size = 1;
    pointerCoords[0] = pc1;
    pointerCoords[1] = pc2;

    //////////////////////////////////////////////////////////////
    // events sequence of zoom gesture
    // 1. send ACTION_DOWN event of one start point
    // 2. send ACTION_POINTER_2_DOWN of two start points
    // 3. send ACTION_MOVE of two middle points
    // 4. repeat step 3 with updated middle points (x,y),
    //      until reach the end points
    // 5. send ACTION_POINTER_2_UP of two end points
    // 6. send ACTION_UP of one end point
    //////////////////////////////////////////////////////////////

    // step 1
    event = MotionEvent.obtain(downTime, eventTime, 
                MotionEvent.ACTION_DOWN, 1, properties, 
                pointerCoords, 0,  0, 1, 1, 0, 0, 0, 0 );

    inst.sendPointerSync(event);

    //step 2
    event = MotionEvent.obtain(downTime, eventTime, 
                MotionEvent.ACTION_POINTER_2_DOWN, 2, 
                properties, pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);

    inst.sendPointerSync(event);

    //step 3, 4
    if (ifMove) {
        int moveEventNumber = 1;
        moveEventNumber = duration / EVENT_MIN_INTERVAL;

        float stepX1, stepY1, stepX2, stepY2;

        stepX1 = (endPoint1.x - startPoint1.x) / moveEventNumber;
        stepY1 = (endPoint1.y - startPoint1.y) / moveEventNumber;
        stepX2 = (endPoint2.x - startPoint2.x) / moveEventNumber;
        stepY2 = (endPoint2.y - startPoint2.y) / moveEventNumber;

        for (int i = 0; i < moveEventNumber; i++) {
            // update the move events
            eventTime += EVENT_MIN_INTERVAL;
            eventX1 += stepX1;
            eventY1 += stepY1;
            eventX2 += stepX2;
            eventY2 += stepY2;

            pc1.x = eventX1;
            pc1.y = eventY1;
            pc2.x = eventX2;
            pc2.y = eventY2;

            pointerCoords[0] = pc1;
            pointerCoords[1] = pc2;

            event = MotionEvent.obtain(downTime, eventTime,
                        MotionEvent.ACTION_MOVE, 2, properties, 
                        pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);

            inst.sendPointerSync(event);
        }
    }

    //step 5
    pc1.x = endPoint1.x;
    pc1.y = endPoint1.y;
    pc2.x = endPoint2.x;
    pc2.y = endPoint2.y;
    pointerCoords[0] = pc1;
    pointerCoords[1] = pc2;

    eventTime += EVENT_MIN_INTERVAL;
    event = MotionEvent.obtain(downTime, eventTime,
                MotionEvent.ACTION_POINTER_2_UP, 2, properties, 
                pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0);
    inst.sendPointerSync(event);

    // step 6
    eventTime += EVENT_MIN_INTERVAL;
    event = MotionEvent.obtain(downTime, eventTime, 
                MotionEvent.ACTION_UP, 1, properties, 
                pointerCoords, 0, 0, 1, 1, 0, 0, 0, 0 );
    inst.sendPointerSync(event);
}