Computers | Learning Daily

How to : Multiple login in yahoo messenger

Posted on 26. Dec, 2009 by Krishnan.

0

You can have multiple instances of yahoo messenger which can be used to login with different IDs – without any download or patch .
To have multiple instances of yahoo messenger, follow these steps :
1. Go to Start —-> Run . Type regedit, then enter .
2.Navigate to HKEY_CURRENT_USER ——–> Software —>yahoo —–>pager—->Test
3.On the right page, right-click and choose new Dword value .
4.Rename it as Plural.
5.Double click and assign a decimal value of 1.

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VBA support in OpenOffice.Org Calc

Posted on 21. Oct, 2009 by Krishnan.

3

For many years till yesterday, I knew about OpenOffice.Org Calc. Today, I’m excited about it.

I tried OpenOffice many years ago. It could do few things back then, but I immediately dismissed as inadequate for my needs. I have always been a fan of what VBA could do for Excel.

Last week, I completed the most complex piece of VBA application I’d ever written. I am a VBA newbie and it took me a week to finish my code that could be printed on 28 A4 pages. My spreadsheet till date works flawlessly on XP/Office 2003 like it is supposed to, but I wrote most of my code in Vista/Office 2007.

When I upgraded to Debian Squeeze, Openoffice.org 3.1.1 came with it. I checked out the new version and was impressed that one could write macros in Python, Javascript, BeanShell in addition to BASIC.

I tried to open my most complex piece of VBA code in Openoffice.org and I was bombarded with hundreds of repetitive error messages that I had to kill the spreadsheet from the command line. I was convinced that VBA and OOoCalc are not compatible, till I discovered this site by accident when trying to learn to write Javascript Macros in OOo.

OK. All I needed to add was “Option VBA Support 1″. That didn’t sound too difficult, so I tried opening my spreadsheet again and had to again kill everything from command line.

Some thing was not right and I wasn’t being able to run VBA despite the promised compatibility.

So I decided to go slow. No matter how many times, I couldn’t run the macros when I opened the native excel file. So I decided to open the excel file with macros disabled. That let me open the spreadsheet, but nothing was working. I found that OOoCalc automatically had added “Option VBA Support 1″ to my modules.

I saved the file as .ODS and proceeded to debug by enabling macros again. This time, errors didn’t come in a flood.They came one at a time and it was easier to debug.

The first set of errors related to variables which did not have an explicit Dim statement. VBA in Excel seemed more forgiving in handling varaibles without proper Dim statements. But OOo Calc didn’t like it. So I ended up adding a few Dim statements for some variables.

The next set of errors was with Excel UDF names. OOo Calc likes to see Functions being invoked with uppercase letters. So if you’d used lower case letters in Excel, they would show up as errors. This could be easily fixed by use of find and replace feature.

With just these two things, fixed my new .ODS file worked perfectly. I then saved it as .xls and re-opened the .xls and everything was still working. Though OOo Calc documentation still says that not all VBA features are supported, VBA runs well on OOoCalc for all practical engineering calculations. So now is the time for me to make the switch.

Now if you have difficulties, in getting your VBA code to work in OOo Calc, dont give up soon.

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WP-Hive upgrade prevents WordPress login

Posted on 08. Oct, 2009 by Krishnan.

2

I upgraded the wp-hive plug-in to version 0.5 earlier today. It wasn’t an active plugin for me and I needn’t have upgraded it. But I did it earlier today and didn’t think twice about it.

Later, I found out that I could not login into WordPress as an administrator. Everything else seemed to be working fine. Site was up and running as usual, but I couldn’t access my dashboard.

When I checked the WordPress database through phpMyAdmin the wp_options table was perfect. I was soon able to figure out that this was not a WordPress problem.

So I started troubleshooting by trying to undo my last set of actions, one of which was upgrading the wp-hive plugin. Renaming the wp-hive folder gave an serious error and brought the site down. With that I was able to narrow down the problem to the file

/wp-contents/db.php

I remmed out the line

/*require_once( WP_CONTENT_DIR . ‘/plugins/wp-hive/do-prefix.php’);
*/

Everything is back to normal for me now because I dont use wp-hive.

I didn’t find anything about this problem in Google, so I decided to write this down.