October 1998
Intermediate to advanced
656 pages
16h 10m
English
Content preview from VB & VBA in a Nutshell: The Language
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
D.4. Remote User-Defined Types
User-defined types (UDTs) have always been a powerful part of VB programming. Their use, however, diminished slightly with the introduction of the Collection object in VB4. VB6 has redressed the balance by allowing you to define a public property or function that returns a UDT, or to use a UDT as an argument in a public function. This means that you can pass around strongly typed complex data structures, as opposed to passing around objects.
To go along with this change, UDTs can now also be used with the TypeName function and the TypeOf operator, and a new variable type constant, vbUserDefinedType, has also been added to the language.
Note that because the use of remote UDTs has required a change to the underlying COM/Automation structure, to use remote UDTs you must apply NT4 service pack 4, the latest version of DCOM95 (DCOM98), or be running on either NT5 or Windows 98.
For information on how to use remote UDTs, see Reference entry "Type Statement" in Chapter 7 and Section 4.1.3 in Chapter 4.
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.