"Fatal error: Call to undefined function" after automatic upgrade in Wordpress

"Fatal error: Call to undefined function" is always a sign of an incomplete upgrade, where not all the files got upgraded.

Do a manual upgrade.

Live USB of different Linux distributions in Windows, HOWTO

Universal USB Installer, is a very easy tool to do this. Manual :

1. Insert a USB stick with at least 2GB of free space
2. (Optional) You can download the iso file of the Linux distro that you want to have it on your USB / The download can be done through the Universal USB Installer later as well.
3. Download the Universal USB Installer (Both Download link & user manual)
4. Select the desired Linux distro from the dropdown list
5. Click 'Browse' and open the downloaded ISO file/ OR simly download it by clicking on the "Download iso(optional)"
6. Choose the USB drive and click 'Create'

Android & WiFi information, Wifimanager + Wifiinfo

For having access to the WiFi connection, you can use the WifiManager and WifiInfo classes in Android SDK. The following code can show you how you can do get access to things like your IP address, the connected network name or the available networks around you :

        WifiManager myWifiMananger = (WifiManager) getSystemService(WIFI_SERVICE);

        WifiInfo myNetInfo = myWifiMananger.getConnectionInfo();

        showIp.append(changeIp(myNetInfo.getIpAddress()) + " \n");

        showIp.append(myNetInfo.getSSID() + " ");

        List<ScanResult> scanList = myWifiMananger.getScanResults();

        for(ScanResult element : scanList){

         showIp.append(element.SSID + " Level: " + element.level + " freq : " + element.frequency + " Cap: " + element.capabilities + "\n");

        }
//DONT forget that the getIpAddress returns an int value. Convert it to string :
public String changeIp(int ipAddress){

     return String.format("%d.%d.%d.%d",

       (ipAddress & 0xff),

       (ipAddress >> 8 & 0xff),

       (ipAddress >> 16 & 0xff),

       (ipAddress >> 24 & 0xff));

    }

*** VERY IMPORTANT : To use this you need to add couple of lines to android manifest(XML file -> AndroidManifest.xml).

<uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />

  <uses-permission android:name="android.permission.CHANGE_WIFI_STATE" />

How to tile a background image in Android

Very good tutorial :
http://androidforbeginners.blogspot.com/2010/06/how-to-tile-background-image-in-android.html

Outlook backup

The following procedure is valid only for Microsoft Office Outlook 2007. You can determine which version you are using by opening Outlook and clicking on Help > About Microsoft Outlook.

The Personal Folder file (.pst / PST) is the place where Outlook stores its data (when you're using Outlook without Microsoft® Exchange Server). Each Personal Folder file contains all of your Outlook folders, including the Inbox, Calendar, and Contacts. You may have a single .pst file (usually called "Internet Folders" or "Personal Folders" in your Folder List), and you may also have an additional .pst file that you use to archive messages (named "Archive Folders"). By backing up these PST files you will be backing up all your Outlook information.

In previous versions of Outlook, it was difficult to locate the folder containing the personal folder files. Developers have made this task much easier in Outlook 2007.

There are two ways to access the location of your data files. In the main menu, you can either click File > Data File Management... or Tools > Account Settings...

If not already selected, click on the "Data Files" tab. You may have a single data file or multiple data files. These "Data Files" are where you store your email messages, calendar, tasks and other items.


Highlight the data file that you are interested in backing up and click on the "Open Folder..." icon. Clicking on this icon will automatically launch Windows Explorer and take you to the location where this data file is stored.

Within the folder you should find an outlook.pst file . Burn this file to a CDROM disk or other backup source. If you archive your email, be sure to backup the archive.pst file as well. Prior to backing up these files, Outlook will need to be closed.
The table below lists key Outlook files that you may want to back up in addition to your Personal Folder(s). You will need to completely exit Outlook prior to copying these files. Depending upon your configuration some or all of these files may be present in your Outlook directory.

Change Windows password with Ubuntu Live CD

http://www.howtogeek.com/howto/14369/change-or-reset-windows-password-from-a-ubuntu-live-cd/

Change product key in Office 2010; HOWTO

1. Control Panel
2. Uninstall a Program / Programs & features
3. Office 2010
4. Click on Change button
5. Choose Enter new product key & Press Continute
6. Type your new product key and also make sure to check the option Attempt to automatically activate my product online to automatically activate your Office 2010 suite. Now click on Continue and then on Install Now.

Convert array of strings to a list, C#

It is very easy to convert an array of string to a list in C-sharp :


// this line returns an array of file names
string[] fileEntries = Directory.GetFiles("c:/test");
List fileList = new List(fileEntries.Length);//convert an array to List

Ignite Oslo, Rapid Prototyping

On Thursday I hold one of the most difficult presentations of my life. I was representing Robotica Osloensis, a student community which I am deputy chairman of, at Ignite Oslo. I talked about Rapid Prototyping which we use as our main method at Robotica in our projects. Ignite is a style of presentation where participants are given five minutes to speak on a subject accompanied by 20 slides. Each slide is displayed for 15 seconds, and slides are automatically advanced. The Ignite format is similar to Pecha Kucha, which features 20 slides displayed for 20 seconds each.

The Ignite Oslo was a very nice event. They had 5 minutes presentations about different topics(list over topics) which were very interesting. Presentations about art, film making, music composition with applications on iPad, 3D printing, air balloons and fashion, etc. It was pretty stressful when it came to my turn. The whole idea of 15 seconds intervals and having a lot to say about a subject that actually belongs to the nerd world made me very nervous. Thanks to my friends Magnus Lange and Ole Jacob, who helped me both about the content and preparing in advance for the presentation, I was well prepared. Also I should thank my friends who came there to support me when I was actually holding the presentation. My presentation can be downloaded by clicking here.

Import your Facebook events to your Google Calender

Go to your Facebook account, Go to Events, Click on Export Events -> You would get a link
Then go to your Google Calender -> Setting -> Calender Setting -> Calenders -> import calender link in the middle of the page. There you can use the Link you received from Facebook to import the events to your Google calender.

Category 5, cable standard

Category 5 cable (Cat 5) is a twisted pair high signal integrity cable type. This type of cable is used in structured cabling for computer networks such as Ethernet and ATM, and is also used to carry many other signals such as telephonyand video. Most Category 5 cables are unshielded, relying on the twisted pair design for noise rejection. Category 5 has been superseded by the Category 5e specification.


I usually use these cables in my robotic projects as well, as they come in a well packaged easy way and one can easily setup one protocol to use one color for one kind of signal :-)

String & Javascript

String in Javascript, cool link : http://www.javascriptkit.com/javatutors/string4.shtml

Javascript, forward to another page according to the refferer URL

<!-- Hide script from old browsers<br>

if (document.referrer.indexOf("facebook") != -1)
//document.write("From facebook")
location.href = "www.yourpage.com";
else
document.write("Not from facebook so we stay on this page")
//-- Stop hiding script -->

KeyListener in Java

If you want to write a code in Java which is based on keys being pressed on keyboard, then KeyListener is your way a head. This link at Oracle.com has a very nice description of the whole class and a very good example :

http://download.oracle.com/javase/tutorial/uiswing/events/keylistener.html

HOWTO : add/remove a String Item to jComboBox, Java

jComboBox :

// Add an item to the start of the list
cb.insertItemAt("item0", 0);

// Add an item after the first item
cb.insertItemAt("item0.5", 1);

// Add an item to the end of the list
cb.addItem("item3");

// Remove first item
cb.removeItemAt(0);

// Remove the last item
cb.removeItemAt(cb.getItemCount()-1);

// Remove all items
cb.removeAllItems();

HOWTO : get a list of available ports, Java

If you want to ahve a list over all ports, the code down here can help alot

protected void list() {
// get list of ports available on this particular computer,
// by calling static method in CommPortIdentifier.
Enumeration portList = CommPortIdentifier.getPortIdentifiers();

// Process the list.
while (portList.hasMoreElements()) {
CommPortIdentifier cpi = (CommPortIdentifier) portList.nextElement();
System.out.print("Port " + cpi.getName() + " ");
if (cpi.getPortType() == CommPortIdentifier.PORT_SERIAL) {
System.out.println("is a Serial Port: " + cpi);
} else if (cpi.getPortType() == CommPortIdentifier.PORT_PARALLEL) {
System.out.println("is a Parallel Port: " + cpi);
} else {
System.out.println("is an Unknown Port: " + cpi);
}
}
}

Source : java2s.com, modified as javax.comm does not exist anymore on Windows and RxTx should be used

HOWTO : The code which lets you share a link on Facebook on your website

If you want to share the link of a current page on your website or a permanent link on Facebook, you just need to do the following :

Facebook has a very good documentation on it which you can read here.

</SCRIPT> <a name="fb_share" type="button"></a> <script src="http://static.ak.fbcdn.net/connect.php/js/FB.Share"
type="text/javascript">
</script>

Result :

HOWTO : change the location of Desktop folder at Windwos 7

If like me you would also like to change the location of your Desktop folder(security reasons or willing to share the same Desktop on all of your computers), keep reading.


The solution is pretty simple :-) Simply go to following path : 
C:/users/name/Desktop
Then right click on the Desktop folder and then choose properties. After it click on "Location tab" and there you can change the location of the Desktop folder.


in XP, it is the same story but a little bit more complicated as you should go to registery(Start->Run->regedit) and change the value of this entry in registry : 


HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\Desktop

HOWTO : insert a code in blogspot weblogs

<"border: 1px dashed rgb(153, 153, 153); padding: 5px; overflow: auto; font-family: Andale Mono,Lucida Console,Monaco,fixed,monospace; color: rgb(0, 0, 0); background-color: rgb(238, 238, 238); font-size: 12px; line-height: 14px; width: 100%>


Some code here

HOWTO : Add a program to Applications Menu

In Gnome(edgy) : System -> Preferences there is an item called "Main Menu". Here you to edit the application menu.