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JavaScript supports different types of data types. JavaScript has dynamic types. That means, the type of the variable is come to know depending on the value the variable holds. What happened if the variable is not assigned with any value? Good, we don’t know the type of the variable. Hence “undefined” type. If the variable is […]
Google AdSense provides an easy-to-use interface to create/modify ad units. Google AdSense allows changing ad type of an existing ad. Currently, there are three ad types that exist. One is “Text ads only”, another one is “Display ads only” and the final one is “Text & display ads”. “Text ads only” will display the textual […]
FTP is the File Transfer Protocol used to transfer files over internet. Using FTP, we can download or upload the files. Windows Operating System provides ftp commands to connect, download or upload data from/to FTP server. Here are some of the important things you need to remember when working with FTP. Before downloading or uploading […]
When we run our test application, we were getting a message “No such interface supported”. It seems, CreateInstance was failed to return the instance of the component. Before looking into the way CreateInstance creates an instance of our component; let us test our DLL by calling exported functions directly without the help of COM library. To do […]
Windows Explorer allows to search files within the folders or its sub-folders. We can also search for content within the files. Unlike earlier versions of Windows, the user interface to search within the files is different and by default this option is disabled. This article explains how to enable Windows Explorer to search within the […]
CObject supports object serialization. One of the MFC’s great feature, which allows to store and retrieve the object’s current state. To enable this feature in our code: We must add DECLARE_SERIAL macro into our class declaration. IMPLEMENT_SERIAL macro must be added into class implementation file. And override the Serialize member function. Lets extend our class […]
In the previous article, we created a test application to test our COM component. When we rant our test application, it was displaying a “Class not registered” error message. Before re-looking into our component and test application code; let’s understand in what scenarios this “Class not registered” error message occurred. One scenario is, unable to find the […]
DOM (Document Object Model) is a standard, allows to dynamically access the HTML documents, it’s styles, content and structure. It also allows dynamically update the content. JavaScript is a dynamically typed, object-based scripting language that runs in a host environment, usually a web-browser. But, it also used for server-side programming. JavaScript supports HTML DOM; so […]
C++ allows virtual functions to resolve function calls at run-time. This is called late-binding. Like virtual functions, C++ allows virtual destructors to delete the objects properly in an inheritance hierarchy. C++ allows calling virtual functions from class destructors. But what will happen when it calls these virtual functions from class destructors? Let’s take an example, […]
Usually, each project is developed in multiple phases. Commonly the phases are: Initiation Planning Execution Monitoring & Controlling and Closing Project plans created with Microsoft Project contain tasks and each task can be entered into the different phases mentioned above. This article explains how to create a project plan using Microsoft Project. This article applies […]
