In VB3 you can set up an executable project to start up in the main subroutine, and it shows up in the Windows 95 taskbar: Public Sub Main() Load frmFoo
When you use multiple forms in a project, make sure you explicitly set a form to Nothing after you unload it. If you don’t, simply unloading the form won’t necessarily
It is customary to overload the subscript operator, [], in classes that hold a sequence of elements. Vector and String are examples of such classes. When you overload operator [],
When executing code and tying up the system, developers often use a label or status bar to display messages. If you simply assign your text or message to the control
C code should not access objects that have a virtual base class. The reason is that a virtual base is usually represented in the form of a pointer to a
The fourth restriction on the legality of accessing C++ objects from C code states that all the data members of the class must be declared without an intervening access specifier.
In the case of virtual functions, an additional member is inserted into the class: a pointer to the virtual table, or _vptr. The _vptr holds the address of a static
Be careful about tips to easily duplicate tool-tip help with only tip control and mouse events. If your “tip” control doesn’t have the same parent as the control you’re moving
Jeremy Boschen pointed out an easy way to load a Boolean into a check-box control in the tip, “Use Boolean Variables for Check-Box Values” [101 Tech Tips for VB Developers,