November 2007
Intermediate to advanced
848 pages
27h 15m
English
Content preview from Windows® via C/C++, 5th EditionBecome 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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The DLL’s Entry-Point Function
A DLL can have a single entry-point function. The system calls this entry-point function at various times, which I’ll discuss shortly. These calls are informational and are usually used by a DLL to perform any per-process or per-thread initialization and cleanup. If your DLL doesn’t require these notifications, you do not have to implement this function in your DLL source code. For example, if you create a DLL that contains only resources, you do not need to implement this function. If you do want to receive notifications in your DLL, you can implement an entry-point function that looks like the following.
BOOL WINAPI DllMain(HINSTANCE hInstDll, DWORD fdwReason, PVOID fImpLoad) { switch (fdwReason) { case DLL_PROCESS_ATTACH: ...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,
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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.