Tip Bank

Question: How do I refresh the desktop after I draw on it? Answer: Simple: call the Invalidate method for your form, and the window will refresh.

Question: I’m having problems passing variables to an API function. I always receive a Type mismatch error. I reproduced the situation in Visual Basic and found that if I used

Question: I am updating an application that was developed to make an executable test version. However, the live database is opened, not a test database. I have made a test

Question: I am having troubles with the TTreeView component and adding custom derivations of TTreeNodes to it. I want to define a new type of TTreeNode with a lot of

If you have a Microsoft Word document that you want to insert into an HTML page in FrontPage 98, you don’t have to open Word to convert to HTML. With

In general, classes that possess pointers, file handles, and other resources need a user-defined constructor to avoid aliasing. For example: class Person {private: int age; char * name;public: // the

An event producer is also known as the “source” of the event. Java does not define a base class or an interface for the event producer. However, the Listener design

The EventListener interface is a marker or tag interface that doesn’t define any methods. Its purpose is to provide a base interface for all event listener objects that follow the

If you have Simple Mail Transfer Protocol (SMTP) installed with Internet Information Server (IIS), you can automate e-mail through VBScript. The Collaboration Data Objects for Windows NT Server (CDONTS) component