Today's Question:  What does your personal desk look like?        GIVE A SHOUT

SEARCH KEYWORD -- paint message

  Paint messages will come in as fast as you let them

There is a class of messages which are generated on demand rather than explicitly posted into a message queue. If you call Get­Message or Peek­Message and the queue is empty, then the window manager will look to see if one of these generated-on-demand messages is due, messages like WM_TIMER, WM_MOUSE­MOVE, and WM_PAINT. Neil wonders, "In that program that called Invalidate­Rect 100,000 times, how many paint messages were generated?" The Zen answer to this question is "Yes." A ...

   WM_PAINT,paint message,work,Mouse move     2011-12-21 09:37:14

  CSS box-shadow Can Slow Down Scrolling

Working on one of the Chromebooks Google lets you borrow on Virgin America flights, I noticed scrolling down the page on my airbnb.com dashboard was much slower than on my normal laptop. I chalked it up to weak Chromebook hardware, but other sites were scrolling just fine. box-shadow had caused slow scrolling on our search results page before, so I did some investigation.I used Chrome's Timeline tab to see the duration of paint events on the page. Before each test I forced a garbage collection a...

   CSS,box-shadow,performance,Timeline,Chromebook     2011-11-13 08:13:48

  Capture screenshot of dropdown menu

As a IT professional, we often need to capture screenshot of what we are working on to give proof of what we are doing and why we do it. The screenshot will provide a good sense to other people. You may be familiar with taking screenshot with different tools such as snagit, snipping tool or the Windows PrtSc button. But do you know how to take a screenshot of a dropdown menu? Here we show you how to capture screeenshot of dropdown menu with the snipping tool provided since Windows 7. Below are t...

   Widnows,Screenshot,Dropdown menu,Capture     2014-11-20 06:20:20

  Do NOT use boolean variable as function parameters

We follow lots of coding styles and coding standards when we do programming, but we may frequently forget one. The forgotten one is that do not use boolean parameter as the function parameters. The reason is it would greatly reduce the readability of the code. Don't believe it? When you read the following code, what does this code mean? widget->repaint(false); Do not repaint? Or what does this mean? After looking at the document, we know that this parameter is whether ...

   CODING STYLE,BOOLEAN,FUNCTION PARAMETER,CODING STANDARD,METHOD PARAMETER     2012-04-22 02:38:45

  Custom C++ exception class creation

In standard C++, we can use try catch to catch and exception when something goes wrong. These are some built in exception support in C++. By including the #include , we can now catch exceptions in C++ programs. This actually helps us on debugging our code and reduce the maintenance work.However sometimes if we want to create our own custom exception class. What should we do?We should include the #include line and then extend the exception class and implement some methods as you like. The genera...

   C++,std,exception,custom exception,implementation     2012-03-04 09:58:18

  5 Must See HTML5 Sites

With the release of the iPad, HTML5 technology has recently come into the spotlight.  The format that will likely kill Adobe’s Flash is a lot of fun to use, but we’ve  not seen much of it yet. The good news is that you don’t have to wait until the iPad is in your hands to see what HTML5 can do.  If you have a compatible browser, there are already a wealth of sites that show off the capabilities. First, make sure that you have a browser that is capable of ...

   HTML5,Web,Website,Demo     2011-07-01 11:24:44

  The Tale Of Perfect Checkout Page & Magento Online Store

I bet you've already googled every bit of advice on how to win customers. You've installed and integrated bazillions of extensions and marketing tools, rewritten every piece of text on your site, redesigned and rebranded your Magento store. In case you're still wondering why clients keep coming and going away without purchasing your goods, this article is for you. I solemnly declare that every single piece of advice on leading a customer to buy from your online store, you've read so far is imper...

   magento, magento user experience, ecommerce, online business     2015-04-16 21:15:09

  Some cases where MySQL cannot be started

After installing MySQL, when we try to start MySQL, sometimes we may not be able to start it. The reasons can be different. We share some general cases where MySQL cannot be started. Case 1: Directory or file permission issue If the permission is set wrongly in MySQL's $datadir and its sub directories or files, MySQL will not be able to read and write files normally. Error message: mysqld_safe Starting mysqld daemon with databases from /usr/local/mysql/data /usr/local/mysql/bin/mysqld_safe: lin...

   MySQL,Error,Log     2013-08-15 03:32:36

  Different ways to print "Hello world" in Java

This post is not about best practice to print "Hello world" in Java, it is about exploring different capabilities offered by Java. Also there are articles about printing "Hello world" in different programming languages, but this post is not about that. Standard literal The most commonly used way is to use System.out to print"Hello world". System.out.println("Hello world"); Enumeration An enumeration can define a set of values belonging to one category. For example, an enumeration for all months ...

   JAVA,FEATURE     2016-05-21 21:49:48

  Sending message to Slack Incoming Webhook using PHP

Slack is a popular work collaboration tool and it provides many features which help teams collaborate. It has one function which allows sending messages to channels from external source such as your own web service -- Incoming Webhook. This is extremely useful when want to monitor something and get notified when some event occurs and it doesn't require complicated setup. To send messages using Incoming Webhook, a service URL has to be generated on Slack and then the message can be posted to this...

   PHP,CURL,SLACK,INCOMING WEBHOOK     2017-03-11 21:32:28

RECENT