SanZ's Blog

Few Useful Objective-C Snippets for an iOS App

noreply@blogger.com (Anonymous) — Wed, 16 Oct 2013 08:37:00 +0000

`LAUNCH MAIL AND SEND AN EMAIL`

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"mailto://mymail@myserver.com"]];

`PREVENT SLEEP MODE`

[UIApplication sharedApplication].idleTimerDisabled = YES;

`STOP RESPONDING TO TOUCHES`

[[UIApplication sharedApplication] beginIgnoringInteractionEvents];

`RESUME RESPONDING TO TOUCHES`

[[UIApplication sharedApplication] endIgnoringInteractionEvents];

`DISPLAY AN ALERT WINDOW`

UIAlertView* alert = [[[UIAlertView alloc] initWithTitle:@"Warning" message:@"too many alerts" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] autorelease];
[alert show]

`DISPLAY THE NAME OF YOUR APPLICATION`

self.title = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleName"];

`CHANGE THE STYLE OF A NAVIGATION BAR`

[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackOpaque];

`GET THE CURRENT DATE AND TIME`

NSCalendar *gregorian = [NSCalendar currentCalendar];
NSDateComponents *dateComponents = [gregorian components:(NSDayCalendarUnit | NSMonthCalendarUnit | NSYearCalendarUnit) fromDate:[NSDate date]];

`MAKE A VIBRATION`

AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);

`DISPLAY THE NUMBER OF LAUNCHES`

NSUserDefaults *countDefaults;
int launchCount;

countDefaults = [NSUserDefaults standardUserDefaults];
launchCount = [countDefaults integerForKey:@"launchCount" ] + 1;
[countDefaults setInteger:launchCount forKey:@"launchCount"];
[countDefaults synchronize];

NSLog(@"Launch number: %i", launchCount);

`CONFIGURING A UISCROLLVIEW`

[scrollView setScrollEnabled:YES];
[scrollView setContentSize:CGSizeMake(320, 1400)];

`SET TITLE OF A VIEW IN A UIVIEWCONTROLLER`

viewController.title = @"Title Here...";

`SET THE FONT AND SIZE OF A UITEXTVIEW`

[thankYouTextView setFont:[UIFont fontWithName:@"Helvetica" size:16]];

`SET THE FONT SIZE OF A UILABEL`

[textView setFont:[UIFont fontWithName:@"Helvetica" size:16]];

`PRESENTING A UIVIEWCONTROLLER`

ViewController *viewController = [[ViewController alloc] init];
viewController = @"Title Here...";
[self.navigationController viewController animated:YES];

`HIDING THE BACK BUTTON IN A NAVIGATION CONTROLLER`

self.navigationItem.hidesBackButton = YES;

`SET BACKGROUND OF VIEW`

self.view.backgroundColor = [UIColor colorWithHue:1.0 saturation:0.0 brightness:0.6 alpha:1.0];

`GIVE APP ICON A BADGE NUMBER`

[UIApplication sharedApplication].applicationIconBadgeNumber = 10;

`ALIGN UILABEL TEXT`

titleLabel.textAlignment = UITextAlignmentCenter;

`SET BACKGROUND OF TAB BAR`

UIImage *tabBarBackground = [UIImage imageNamed:@"TabBarOverlay.png"];
[rootController.tabBar setBackgroundImage:tabBarBackground];

Credits: http://fuelyourcoding.com/

Delay Code in iOS

noreply@blogger.com (Anonymous) — Sun, 12 May 2013 07:02:00 +0000

double delayInSeconds = 6.0; 
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, delayInSeconds * NSEC_PER_SEC); dispatch_after(popTime, dispatch_get_main_queue(), ^(void){ 
// unhide views, animate if desired
 [self.navigationController popViewControllerAnimated:YES]; 
});

Sliding Up UITextFields which are hidden by the keyboard in iOS

noreply@blogger.com (Anonymous) — Thu, 28 Feb 2013 16:47:00 +0000

First, declare the following constants somewhere at the top of the view controller's implementation file.

CGFloat animatedDistance;

static const CGFloat KEYBOARD_ANIMATION_DURATION = 0.3;

static const CGFloat MINIMUM_SCROLL_FRACTION = 0.2;

static const CGFloat MAXIMUM_SCROLL_FRACTION = 0.8;

static const CGFloat PORTRAIT_KEYBOARD_HEIGHT = 216;

static const CGFloat LANDSCAPE_KEYBOARD_HEIGHT = 162;

When the textfield will be touched, we will get the rect of the textfield and convert everything to the window coordinates.

Then we calculate the fraction between the top and bottom of the middle section for the text field's midline.

Then we will clamp this fraction so that the top section is all "0.0" and the bottom section is all "1.0".

Then this fraction is converted to scroll according to the keyboards height.

Finally, apply the animation.

-(void)textFieldDidBeginEditing:(UITextField *)textField{

// get the bound

activeField = textField;

CGRect textFieldRect =

[self.view.window convertRect:textField.bounds fromView:textField];

CGRect viewRect =

[self.view.window convertRect:self.view.bounds fromView:self.view];

//calculate the fraction between the top and bottom of the middle section

CGFloat midline = textFieldRect.origin.y + 0.5 * textFieldRect.size.height;

CGFloat numerator =

midline - viewRect.origin.y

- MINIMUM_SCROLL_FRACTION * viewRect.size.height;

CGFloat denominator =

(MAXIMUM_SCROLL_FRACTION - MINIMUM_SCROLL_FRACTION)

* viewRect.size.height;

CGFloat heightFraction = numerator / denominator;

//clamping is done here

if (heightFraction < 0.0) {
heightFraction = 0.0;
}

else if (heightFraction > 1.0) {
heightFraction = 1.0;
}

//converted to the scroll amount

UIInterfaceOrientation orientation =

[[UIApplication sharedApplication] statusBarOrientation];

if (orientation == UIInterfaceOrientationPortrait ||

orientation == UIInterfaceOrientationPortraitUpsideDown) {

animatedDistance = floor(PORTRAIT_KEYBOARD_HEIGHT * heightFraction);

}

else

{

animatedDistance = floor(LANDSCAPE_KEYBOARD_HEIGHT * heightFraction);

}

//apply the animation.

CGRect viewFrame = self.view.frame;

viewFrame.origin.y -= animatedDistance;

[UIView beginAnimations:nil context:NULL];

[UIView setAnimationBeginsFromCurrentState:YES];

[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];

[self.view setFrame:viewFrame];

[UIView commitAnimations];

}

After that we need to Animate back again. It is done by the following code segment:

- (void)textFieldDidEndEditing:(UITextField *)textField

{

CGRect viewFrame = self.view.frame;

viewFrame.origin.y += animatedDistance;

[UIView beginAnimations:nil context:NULL];

[UIView setAnimationBeginsFromCurrentState:YES];

[UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];

[self.view setFrame:viewFrame];

[UIView commitAnimations];

}

Credits: http://www.cocoawithlove.com/2008/10/sliding-uitextfields-around-to-avoid.html

Hide the keyboard when you touch outside of an UITextField in iOS

noreply@blogger.com (Anonymous) — Thu, 28 Feb 2013 16:17:00 +0000

On viewDidLoad add the following lines:

UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideKeyboard)];
[self.view addGestureRecognizer:gestureRecognizer];

Then add the following function somewhere in the implementation file.

- (void) hideKeyboard {
[activeField resignFirstResponder];
}

Here activeField is an UITextField object. Declare it somewhere at the top of the view controller's implementation file.

How to Access Web Sites When They’re Down

noreply@blogger.com (Anonymous) — Wed, 31 Oct 2012 15:15:00 +0000

When sites go down, there are actually a few ways to access them through the magic of caches and archives.

Access Cached Pages Through Google

Google caches a large portion of the internet, and it’s easy to access those caches when a site isn’t available. All you have to do is search for a URL prepended with “cache:” like this:

cache:http://sanzar-adnan.blogspot.com/

That’ll take you to the cached version of sanzar-adnan.blogspot.com. You can replace it with any URL to get the latest version Google currently has in its cache.

Alternatively, the Google Cache Bookmarklet helps you access the cached version of any page you visit with just one click. Just visit any page, and if it fails to load you can click the bookmarklet to visit the cached version immediately.

Another place to find old versions of pages is the Internet Archive’s Wayback Machine. While you won’t find quite as much as you will on Google’s cache, you will be able to go back further and see what a certain site was like in the distant past. The more popular the site the greater the number of archived pages the Wayback Machine will provide, but generally speaking you won’t be able to access too many individual pages and only the landing page of the site.

Access Overwhelmed Sites with Coral Cache

Sometimes a web page goes down due to excessive traffic. In this case, a service called Coral Cache may be able to help. Simply append .nyud.net to the end of the domain name you want to access (e.g. http://sanzar-adnan.blogspot.com.nyud.net) and you’ll get Coral’s cached version. This may not work for every site, but it’s worth a try when you’re unable to get through.

In the end, a cached version of a page will only get you so far. You’re not going to be able to access the site like you could if it were up. But, if you’re simply looking for an old post and need to access it right away, searching the internet’s biggest caches can help you out.

Originally Posted in LifeHacker.

iPhone Application Development Tutorial

noreply@blogger.com (Anonymous) — Mon, 10 Sep 2012 16:05:00 +0000

This is a free tutorial by the Stanford University.

download part-1

download part-2

Create Multiple Folders And Sub-Folders Easily In One Go

noreply@blogger.com (Anonymous) — Mon, 10 Sep 2012 13:06:00 +0000

Using
Batch (BAT) Command

The First method for creating
multiple folders requires using the Batch (BAT) file. First you create a root
folder in which you want your other folders to appear. Once done, create a text
file in root folder and enter the md command in following way.

md <folder
name>/<sub-folder name>

For example,

md Music

md Videos

md Pictures

md Documents

md C:\User\Test\Desktop\AddictiveTips\Documents\Home

If you want to create sub-folder,
enter the full path of parent folder followed by required sub-folder name. When
done, change the file extension to BAT. For instance, dir.txt to
dir.bat.

Now, just run the batch file to
create the folders and sub-folders.

Using Text 2 Folders Application

With free program Text2Folders, however, the process can be
significantly automated, requiring the user either type in the names of the
folders (and/or sub folders) that are needed, or import a text file that
contains the desired folder names, and the program will do the rest.

The above figure will create Folder
1, Folder 2, Parent these 3 folders and another subfolder
under Parent named Child in F:\From Drive E\Education path.

download text-2-folder 

Free download Principles of compiler design by Alfred V. Aho, Ravi Sethi, Jeffrey D. Ullman.

noreply@blogger.com (Anonymous) — Sat, 01 Sep 2012 07:03:00 +0000

Principles of compiler design by Alfred V. Aho, Ravi Sethi, Jeffrey D. Ullman.

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Master These Keyboard Shortcuts For Text Editing

noreply@blogger.com (Anonymous) — Fri, 24 Aug 2012 18:58:00 +0000

Selecting
Text

One of the most useful things you
can do with text editing keyboard shortcuts is selecting bits of text. It
speeds things along a great deal when writing.

Select one character at a time. – Shift+Left
or Right Arrow

Select one line at a time. – Shift+Up
or Down Arrow Keys

Select one word with each arrow
press. – Shift+Ctrl+Left or Right Arrow

Select current paragraph. – Shift+Ctrl+Up
or Down Arrow

Select text between the cursor and
the end of the current line. – Shift+Home 

Select text between the cursor and
the end of the current line. – Shift+End

Select all text. – Ctrl+A

Editing
Text

Once you have all those text bits
selected, you need to do something with them. That is where these handy editing
bits come into play.

Copy selected text. – Ctrl+C or
Ctrl+Insert

Cut selected text. – Ctrl+X or
Shift+Delete

Paste text at the cursor. – Ctrl+V
or Shift+Insert

Undo last action. – Ctrl+Z

Redo last action. – Ctrl+Y

Formatting
Text

Another useful thing you can do with
keyboard shortcuts is format your text. You can make it italicized, bold
and more with just a couple of buttons on the keyboard.

Make text bold. – Ctrl+B

Make text italicized. – Ctrl+I

Underline selected text. – Ctrl+U

Moving
the Cursor

You can move your cursor all around
your text document without ever placing your hands on the mouse. This allows
you to keep your hands on the keyboard and the productivity flowing.

Move to beginning of current line. –
Home

Move to end of current line. – End

Move to top of text entry field. – Ctrl+Home

Move to bottom of the text entry
field. – Ctrl+End

Move up one frame. – Page Up

Move down one frame. – Page Down

Move to beginning of paragraph. – Ctrl+Up
Arrow

Move to end of paragraph. – Ctrl+Down
Arrow

Working
With Whole Words

Deleting text one letter at a time
is not the quickest way to do the job. If you need to delete and mess with full
words, these keyboard shortcuts are just what you need.

Move to start of previous word. – Ctrl+Left
Arrow

Move to start of next word. – Ctrl+Right
Arrow

Delete previous word. –
Ctrl+Backspace

Delete next word – Ctrl+Delete

Make Your Computer Speak Whatever You Type

noreply@blogger.com (Anonymous) — Sat, 30 Jun 2012 10:22:00 +0000

1.Open Notepad and copy and paste the following code into it

Dim message, sapi
message=InputBox("What do you want me to say?","Speak to Me")
Set sapi=CreateObject("sapi.spvoice")
sapi.Speak message

2.Now save the notepad file with the name speak.vbs at your desktop.

3.Now double click on speak.vbs type in the box whatever you want your computer to speak for you.

Free download Artificial Intelligence A Modern Approach 3rd edition by Stuart Russel, Peter Norvig.

noreply@blogger.com (Anonymous) — Mon, 16 Apr 2012 16:13:00 +0000

Download "Artificial Intelligence  A Modern Approach 3rd edition by Stuart Russel, Peter Norvig.: free.

click here to download

Save your data in a Secret notepad

noreply@blogger.com (Anonymous) — Sun, 25 Mar 2012 18:43:00 +0000

1) Open command Prompt (type cmd in run).

2) You may change to any  directory where you want to save that file.

3) Type notepad  filename.txt:StoreHiddenData
 then press enter.  here filename is name of file for example if i want 
to create a notepad  file of name secret then i will write notepad secret.txt:StoreHiddenData. This will create a  text file secret.txt.

4) A message will be pop up Cannot find the  D:\secret.txt:StoreHiddenData.txt file. Do you want to create a new  file?, click OK button to proceed  create the new file.

5) A notepad will be  pop up. Type data that you want to  hide from others. Save the file and you are now  successfully creating hidden data for this file.

6) close cmd.

A
 notepad file  secret.txt is successfuly created which contains hidden 
data. When you  open secret.txt, it seems empty. Actualy your data is 
hidden so you are  not able to see it. 

If you want to see your hidden 
data then open cmd  and type  notepad secret.txt:StoreHiddenData. A 
notepad file will be pop  up which contains hidden data.

Change the password of any computer using command prompt

noreply@blogger.com (Anonymous) — Sun, 25 Mar 2012 18:23:00 +0000

Open Command Prompt, if you don’t know where is it, click Start- All Programs-Accessories-command prompt

After you see a black window pop-up type ‘ Net User ‘

You will see a little information about all accounts in your computer

You should choose account you want to hack

For example you want to hack account Sanzar, you should type ’ Net User Sanzar and press enter ‘.

Now you are seeing full information about Sanzar’s account

For changing Sanzar’s password, you should type ’ Net User Sanzar * ‘ and it then show you how to change Sanzar’s password

If you can’t understand the command line, you just type ‘ Net User Sanzar the new password ‘.

Say it you want to change Sanzar’s password to 123456, you should type ‘ Net User Sanzar 123456 ‘

Now, you successfully change Sanzar’s password to 123456.

N.B.: Do not harm others.

Tips to Quick Access to Windows 7 Functionality

noreply@blogger.com (Anonymous) — Sun, 25 Mar 2012 17:58:00 +0000

Keyboard shortcut Function

Windows logo key   Open or close the Start menu

Windows logo key+B Select the first icon in the notification area of the

taskbar

Windows logo key+D Minimize all open windows

Windows logo key+E Open the Computer window

Windows logo key+F Open the Search window

Windows logo key+G Select or move between desktop gadgets

Windows logo key+L Lock the computer

Windows logo key+M Minimize all open windows

Windows logo key+Shift+M Redisplay the windows

Windows logo key+P Display the Projection controls

Windows logo key+R Open the Run dialog box

Windows logo key+T Select or move between taskbar buttons

Windows logo key+U Open the Ease Of Access Center window

Windows logo key+X Open the Windows Mobility Center

(portable computers only)

Windows logo key+Spacebar Make all open windows temporarily transparent

(Aero-capable computers only)

Open Command Prompt with a Right Click

noreply@blogger.com (Anonymous) — Sun, 04 Mar 2012 05:48:00 +0000

To open command prompt easily, follow the following steps:

Select the folder or place you want to open in the command prompt
Right-click on it while holding the Shift key
Select Open command window here.

Create Folders And Files With NO Name!

noreply@blogger.com (Anonymous) — Sun, 04 Mar 2012 05:41:00 +0000

This trick will allow you to create files and folders without any name.

Just follow the following steps:
1.Select any file or folder.
2.Right click on it, press rename or simply press F2.
3.Press and hold the alt key. While holding the Alt key, type numbers 0160 from the numpad.

Note:
 Type the numbers 0160 from the numpad, that is, the numbers present on 
the right side of the keyboard. Don't type the numbers which are present
 on top of the character keys.

4.Press Enter and the nameless file or folder will be created.

Reason: The file or folder that seems nameless is actually named with a single space.

Now if you want to create another nameless file or folder in the same directory you just need to follow these steps below:

1.Select file, press F2.
2.Hold alt key and type 0160 from the numpad.
3.Release the alt key. Now without doing anything else, again hold alt key and press 0160.
4.Press enter and you will have second nameless file in the same directory.
5.Repeat step 3 to create as many nameless files or folders in the same directory.

(you might face problem deleting these folders, to do so, start your computer in safe mode and delete it from there.)

Theory of Computer Science: Automata, Languages and Computation by K.L.P. Mishra, N. Chandrasekaran

noreply@blogger.com (Anonymous) — Tue, 21 Feb 2012 08:44:00 +0000

Theory of Computer Science: Automata, Languages and Computation by K.L.P. Mishra, N. Chandrasekaran.

click here to download

Remove Navigation bar from your blog

noreply@blogger.com (Anonymous) — Mon, 13 Feb 2012 16:13:00 +0000

1 . Backup your template for safety issues. 

2 . Go to Dashboard > Template > Edit HTML 

3 . Check the box of Expand Widget Template . 

4 . Find the following code by pressing Ctrl + f

     </head> 

Replace it with the code given below.

<style type="text/css">

    #navbar-iframe {   height:0px;   visibility:hidden;   display:none   }

    </style></head>

5 . Save your template.

Add a Sitemap to your Blog

noreply@blogger.com (Anonymous) — Mon, 06 Feb 2012 19:04:00 +0000

Step 1: Log in to your blogger blog and go to the dashboard.

Step 2: Go to Pages --> New Pages

Step 3: Add a desirable title of it. I recommend "Sitemap"

Step 4: Now Open HTML portion of description by clicking on "Edit HTML".

Step 5:  Now copy the following code from below and paste it in your edit html area.

<script type="text/javascript">

var postTitle=new Array();var postUrl=new Array();var postMp3=new Array();var postDate=new Array();var postYear=new Array();var postMonth=new Array();var postYearMonth=new Array();var postYearMonth2=new Array();var postTanggal=new Array();var postLabels=new Array();var postBaru=new Array();var sortBy="titleasc";var tocLoaded=false;var numChars=250;var postFilter="";var numberfeed=0;var month2=["January","February","March","April","May","June","July","August","September","October","November","December"];function loadtoc(a){function b(){if("entry" in a.feed){var d=a.feed.entry.length;numberfeed=d;ii=0;for(var h=0;h<d;h++){var m=a.feed.entry[h];var e=m.title.$t;var l=m.published.$t.substring(0,10);var p=m.published.$t.substring(5,7);var g=m.published.$t.substring(8,10);var n=month2[parseInt(p,10)-1]+" "+m.published.$t.substring(0,4);var c="/"+m.published.$t.substring(0,4)+"_"+p+"_01_archive.html";var j;for(var f=0;f<m.link.length;f++){if(m.link[f].rel=="alternate"){j=m.link[f].href;break}}var o="";for(var f=0;f<m.link.length;f++){if(m.link[f].rel=="enclosure"){o=m.link[f].href;break}}postTitle.push(e);postDate.push(l);postUrl.push(j);postYearMonth.push(n);postYearMonth2.push(c);postTanggal.push(g)}}}b();displayToc2();document.write('<br/></br/>')}function displayToc2(){var a=0;var b=0;while(b<postTitle.length){temp1=postYearMonth[b];document.write("<p/>");document.write('<p><a href="'+postYearMonth2[b]+'">'+temp1+"</a></p><ul>");firsti=a;do{document.write("<li>");document.write("["+postTanggal[a]+'] <a href="'+postUrl[a]+'">'+postTitle[a]+"</a>");document.write("</li>");a=a+1}while(postYearMonth[a]==temp1);b=a;document.write("</ul>");if(b>postTitle.length){break}}};

</script>

<script src="http://sanzar-adnan.blogspot.com/feeds/posts/default?max-results=500&amp;alt=json-in-script&amp;callback=loadtoc">

</script>

Step 6: Change the red code with your blogger URL.

Step 7: Now publish page and you are done adding sitemap to your blog.

 N.B.: If the pages are not enabled (Show pages as: Not Shown), then enable it (Show pages as top tabs or side links). 

Free bangla to bangla, bangla to english and english to bangla dictionary

noreply@blogger.com (Anonymous) — Fri, 03 Feb 2012 13:46:00 +0000

Free bangla to bangla, bangla to english and english to bangla dictionary. 

click here to download

Create a password protected folder without downloading any software

noreply@blogger.com (Anonymous) — Fri, 03 Feb 2012 13:14:00 +0000

Create a new folder and name it whatever you would like.

Open the folder, right-click on a blank area in it, then select New -> Text Document from the pop-up menu.

Open the text file you just created by double-clicking it and copy/paste in the following text:

cls
@ECHO OFF
title Folder Private
if EXIST "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" goto UNLOCK
if NOT EXIST Private goto MDLOCKER
:CONFIRM
echo Are you sure you want to lock the folder(Y/N)
set/p "cho=>"
if %cho%==Y goto LOCK
if %cho%==y goto LOCK
if %cho%==n goto END
if %cho%==N goto END
echo Invalid choice.
goto CONFIRM
:LOCK
ren Private "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
attrib +h +s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
echo Folder locked
goto End
:UNLOCK
echo Enter password to unlock folder
set/p "pass=>"
if NOT %pass%== PASSWORD_GOES_HERE goto FAIL
attrib -h -s "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}"
ren "Control Panel.{21EC2020-3AEA-1069-A2DD-08002B30309D}" Private
echo Folder Unlocked successfully
goto End
:FAIL
echo Invalid password
goto end
:MDLOCKER
md Private
echo Private created successfully
goto End
:End
In the above code, replace the key PASSWORD_GOES_HERE with the password you want to use to unlock the folder. For example if you want the password to be 123456, the line should look like:
if NOT %pass%== 123456 goto FAIL
Save your new file in the .bat format with the complete file name being locker.bat. To do this, make sure to change the Save as type: to All Files (*.*).

In the folder you created back in Step #1, double click the locker.bat file and there will now be a new folder named Private where you can put anything you want.

Upon exiting, double click the locker.bat file again. It will prompt you to answer whether you want to lock your folder or not. Press Y and the private folder will disappear.

In order to retrieve the Private folder, all you have to do is double click the locker.bat file and enter the password which you set in Step #4 and the folder will appear again for you to access.

That’s it!

Hide a folder

noreply@blogger.com (Anonymous) — Fri, 13 Jan 2012 14:11:00 +0000

Follow the following techniques to hide a folder:

         1. Suppose we want to hide the folder “ABC”, which is situated at Drive C:\  

         2.Go to Command Prompt (Start --> Run --> cmd).

         3. Type attrib +s +h C:\ABC and press Enter.

         4. It will hide your folder. 

         5. To make it visible again you must go to command prompt and type attrib –s –h C:\ABC and press Enter.

Delete the Temporary file of Windows 7 Automatically

noreply@blogger.com (Anonymous) — Sun, 08 Jan 2012 12:18:00 +0000

1. Open Notepad

2. Copy paste the code given below

cd C:\Users\%username%\AppData\Local

rmdir /S /Q Temp

3. Save that as sq.bat

4.Double click on it to delete all the temporary files.

To do it automatically,

1. Go to Start Menu ---> All Programs ---> Startup ---> Right Click on it ---> Click Explore 

2. Paste the sq.bat file there. 

By doing this, it will always delete the temporary files at the start of the windows. 

8086 interview questions

noreply@blogger.com (Anonymous) — Sun, 20 Nov 2011 20:25:00 +0000

8086 interview questions 

What are the flags in 8086? - In 8086 Carry flag, Parity flag, Auxiliary carry flag, Zero flag, Overflow flag, Trace flag, Interrupt flag, Direction flag, and Sign flag.
What are the various interrupts in 8086? - Maskable interrupts, Non-Maskable interrupts.
What is meant by Maskable interrupts? - An interrupt that can be turned off by the programmer is known as Maskable interrupt.
What is Non-Maskable interrupts? - An interrupt which can be never be turned off (ie.disabled) is known as Non-Maskable interrupt.
Which interrupts are generally used for critical events? - Non-Maskable interrupts are used in critical events. Such as Power failure, Emergency, Shut off etc.,
Give examples for Maskable interrupts? - RST 7.5, RST6.5, RST5.5 are Maskable interrupts
Give example for Non-Maskable interrupts? - Trap is known as Non-Maskable interrupts, which is used in emergency condition.
What is the Maximum clock frequency in 8086? - 5 Mhz is the Maximum clock frequency in 8086.
What are the various segment registers in 8086? - Code, Data, Stack, Extra Segment registers in 8086.
Which Stack is used in 8086? - FIFO (First In First Out) stack is used in 8086.In this type of Stack the first stored information is retrieved first.
What are the address lines for the software interrupts?

RST 0	0000 H
RST1	0008 H
RST2	0010 H
RST3	0018 H
RST4	0020 H
RST5	0028 H
RST6	0030 H
RST7	0038 H

What is SIM and RIM instructions? - SIM is Set Interrupt Mask. Used to mask the hardware interrupts. RIM is Read Interrupt Mask. Used to check whether the interrupt is Masked or not.
Which is the tool used to connect the user and the computer? - Interpreter is the tool used to connect the user and the tool.
What is the position of the Stack Pointer after the PUSH instruction? - The address line is 02 less than the earlier value.
What is the position of the Stack Pointer after the POP instruction? - The address line is 02 greater than the earlier value.
Logic calculations are done in which type of registers? - Accumulator is the register in which Arithmetic and Logic calculations are done.
What are the different functional units in 8086? - Bus Interface Unit and Execution unit, are the two different functional units in 8086.
Give examples for Micro controller? - Z80, Intel MSC51 &96, Motorola are the best examples of Microcontroller.
What is meant by cross-compiler? - A program runs on one machine and executes on another is called as cross-compiler.
What are the address lines for the hardware interrupts?

RST 7.5	003C H
RST 6.5	0034 H
RST 5.5	002C H
TRAP	0024 H

Which Segment is used to store interrupt and subroutine return address registers? - Stack Segment in segment register is used to store interrupt and subroutine return address registers.
Which Flags can be set or reset by the programmer and also used to control the operation of the processor? - Trace Flag, Interrupt Flag, Direction Flag.
What does EU do? - Execution Unit receives program instruction codes and data from BIU, executes these instructions and store the result in general registers.
Which microprocessor accepts the program written for 8086 without any changes? - 8088 is that processor.
What is the difference between 8086 and 8088? - The BIU in 8088 is 8-bit data bus & 16- bit in 8086.Instruction queue is 4 byte long in 8088and 6 byte in 8086.

Convert Visual Studio 2010 Project into Visual Studio 2008

noreply@blogger.com (Anonymous) — Sat, 19 Nov 2011 18:02:00 +0000

To Convert Visual Studio 2010 Project into Visual Studio 2008, download the following file and install it (after unzipping it). Then open your project with the installed program and then just convert it.

click here to download