August 15, 1998

DevX

Avoid Deleting a Pointer More Than Once

The results of deleting an object more than once are undefined. However, if code modifications are impossible (when a third party code is used, for example), a temporary workaround to

DevX

Prefix Versus Postfix Operators

You can use both — and ++ as prefix and postfix operators. When applied to primitives such as int or char, they are indistinguishable in terms of efficiency. When applied

DevX

Enums Improve Readability

An enumerated type is simply a list of constants, each of which has a unique value. An Enum can improve the readability of your code by allowing you to declare

DevX

Maintain Username and Password

Due to a minor bug, the Internet Transfer Control cannot use the username and password properties if they are set before the URL property. Because of this, you should always

DevX

Move a Form Without a Title Bar

Enter this code in a BAS module to let users move a window without a title bar: Declare Function ReleaseCapture Lib “user32” () As LongDeclare Function SendMessage Lib “user32” _

DevX

Avoid Implicit int Declarations

The default type for missing declarations like the following is int: const k =0; //’int’ type deduced; deprecatedstatic j =5; //ditto Though still supported by the C++ standard, this convention