Re: The Point of Object Classes

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From: Compu-Pikachu (_at_)
Date: 01/26/05 

Date: Wed, 26 Jan 2005 09:07:39 -0800

[RALPH] Ability to create ActiveX controls.

[COMPU-PIKACHU] I do not even know the first thing about developing them.

[RALPH] Ability to define multiple interfaces to group properties/methods
into functional units. VB4 allowed only a single interface.

[COMPU-PIKACHU] "Interface"?

[RALPH] Ability to raise events from your own class.

[COMPU-PIKACHU] Whoa, I was unaware that events were even involved with
them.

[RALPH] Ability to use enums in classes.

[COMPU-PIKACHU] In observing a class, I noticed this new keyword named
"Enum," which, as conjectured, was unsupported by Visual Basic 4.0. What
are these "enumerations"?

[RALPH] Improved Object Browser. (For once, you could actually "see"
elements like the rest of Windows saw them.)

[COMPU-PIKACHU] How does Windows "see" them?

[RALPH] (VB4 was late binding and often difficult to step into.)

[COMPU-PIKACHU] "Binding"? Is this similar to breakpoints?

[RALPH] Creating function libraries without having to declare an object
variable and creating an object.

[COMPU-PIKACHU] "Function libraries"?

[RALPH] Ability to pass UDTs between classes (alas! public only).

[COMPU-PIKACHU] I was unaware that Visual Basic 4.0 failed to support that.

[RALPH] Now, open those sample applications and see how they can be improved
using the features above. Compare them with the new, and then ask yourself,
"Do I really want to go back there?"

[COMPU-PIKACHU] You make me desire Visual Basic 5.0/6.0 even more.

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