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Newcomers DBPro Corner / DLLs and how they are made

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fhtughryf
16
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Joined: 1st Jul 2008
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Posted: 23rd Jul 2008 00:19
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Okay guys I really need to understand how DLLs work, how to make them, and how do they run or interact with DBP? Just a quick high level explanation is all I really need so don\'t be freightened

Thanks again guys!
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Dabbler
17
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Joined: 3rd Mar 2007
Location: Minnesota
Posted: 23rd Jul 2008 05:20
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Try looking in the help files under help contents - techincal documents - third party commands.


Whatever...
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Moe
18
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Joined: 1st Apr 2006
Location: Sunny California
Posted: 24th Jul 2008 00:16
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in c++ or some other language, basically - think functions

parrot
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fhtughryf
16
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Posted: 24th Jul 2008 23:09
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Well if it's another language how does visual basic (darkbasic) interact with another language? I'm assuming the DLL is compiled so I guess I don't understand how the compiled dll talks with darkbasic.
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IanM
Retired Moderator
22
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Joined: 11th Sep 2002
Location: In my moon base
Posted: 25th Jul 2008 01:12
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You write the function, then you use a resource string to tell DBPro what arguments it will accept and the return type if any.

When you use that command in a DBPro program, the compiler will assemble the arguments you provide, call the function with those arguments, then clean up when the function returns.

This is how it works, not only for the plug-ins we write and that you may write in the future, but also for the majority of the 'built-in' commands that come with DBPro.

[b]Utility plug-ins collection (updated 01/07/08) and
http://www.matrix1.demon.co.uk
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Omen
17
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Joined: 7th Nov 2006
Location: Maple Grove, MN US
Posted: 25th Jul 2008 01:39
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fhtughryf,

This documentation is included with the DBPro install - but, it's a little buried, so that's the only reason I'm posting this - just in case you didn't see it:

In DarkBASIC Pro Editor:
-->Select "Help" from the Main Menu,
-->Commands Help
-->Technical Documents
-->Third Party Commands


Lakehome Games
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fhtughryf
16
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Posted: 25th Jul 2008 22:24
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Thanks everyone for clearing this up for me! I never worked with DLLS before, never had to. I was a COBOL II programmer many years ago and I simply never used them and never had the chance to learn them.
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fhtughryf
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Posted: 25th Jul 2008 22:26
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I would also like to add the reason for my sudden interest in them is that I really enjoyed playing around with some well known user DLLS like multisync, and Sparky's collision dll and from that the interest for dll writing spawned in my brain.
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The Wilderbeast
18
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Joined: 14th Nov 2005
Location: UK
Posted: 26th Jul 2008 20:12
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There is also the #include feature which I use for prototyping. But it isn't very secure as anyone can view and modify the source.

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Ian G
16
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Joined: 3rd Jun 2008
Location: SSM, Canada
Posted: 1st Aug 2008 06:57 Edited at: 1st Aug 2008 06:58
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Aaron Miller made a great template with a tutorial for creating plugins. http://forum.thegamecreators.com/?m=forum_view&t=97069&b=5
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