November 2002
Intermediate to advanced
432 pages
9h 20m
English
Content preview from Essential .NET, Volume 1: The Common Language RuntimeBecome 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,
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Unmanaged Modules
The discussion of unmanaged methods in the previous section assumed that the methods resided in an otherwise managed module and assembly. The CLR also supports calling code in unmanaged modules to allow the use of legacy C DLLs and API functions. One exposes this capability via a technology called P/Invoke.
P/Invoke is a superset of the managed and unmanaged transitions just described. P/Invoke provides a rich set of type conversion facilities to deal with the inherent differences between legacy C DLLs and the CLR. In addition to implementing the execution mode switch just described, P/Invoke performs a security permission demand to ensure that the security of the system is not compromised. Like the ability to execute nonverifiable ...
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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.