Using Swing, you can easily create hidden buttons similar to the Back button used in Netscape Communicator 4. Hidden buttons look like normal graphic elements on the screen until you
Infrastructure functions that are used extensively should adopt the “trust the programmer” policy by not performing additional error checking. This policy is widely used in C/C++ standard libraries. For example,
An empty class doesn’t have any data members or member functions. You’d think that the size of an object of such a class would be zero. However, the Standard states
Andrew Koenig devised an algorithm for resolving namespace members’ lookup. This algorithm is used in all standard-conforming compilers to handle cases like the following: namespace MINE { class C {};
Operators new and delete can be declared in a class scope. However, the Standard prohibits declarations of these operators in a namespace. Why is this? Consider the following example: char
This small subroutine iterates through and closes all databases in the Databases collection of the Workspaces object. For each database in the collection, it iterates through each Recordset and closes
To return to a previous location in your code, press Ctrl+Shift+F2. This way you don’t need to set bookmarks. VB only keeps track of the last eight lines of code
The ID (counter field) of a newly inserted record is available immediately after the AddNew method executes. Retrieving the ID at this point means you don’t have to mess with
To quickly go to the code for a called function, subroutine, or property, simply place your cursor on the called routine and hit Shift+F2. VB will immediately go to the