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heresy
Joined: 11 Mar 2008
Posts: 291
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 Posted: Mon May 19, 2008 4:00 pm Post subject: generic DLL and dllcall question |
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hi dudes i'm having fun of learning dll things lately
due to the lack of general programming knowledge i have some generic questions
i saw someone mentioned that 'only Flat DLLs are usable with autohotkey'
does Flat DLL means it's written in Pure C or something like that?
whatever Flat DLL is how can i distinguish that it's flat or not?
and let's say there's a dll that missing header/lib files
Dependency Walker and similar tools only Returns Function name.
is there any way to get function prototypes of the dll? so i can use them.
thanks in advance for your help as always
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ahklerner
Joined: 26 Jun 2006
Posts: 1249
Location: USA
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| Posted: Mon May 19, 2008 6:12 pm Post subject: |
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most used by ahk are winapi calls which are well documented at msdn2.microsoft.com . If you use an open-sauce dll, the documentation may or may not be available. you can also write a dll to use with ahk.
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heresy
Joined: 11 Mar 2008
Posts: 291
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| Posted: Tue May 20, 2008 2:30 am Post subject: |
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thanks for answer ahklerner
i got what the 'Flat DLL' is now. (not ActiveX right?)
but getting distinction between Flat and other is still remain as question
additionally i want to know if i don't know the function prototype (types, args..) due to missing header file and manual
isn't there any way to get the usage of the dll? i'm talking about 3rd party dll
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dmatch
Joined: 15 Oct 2007
Posts: 113
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| Posted: Wed May 21, 2008 4:03 pm Post subject: |
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whatever Flat DLL is how can i distinguish that it's flat or not?
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Here is an example of a declaration for a Object oriented function in the Microsoft Foundation Classes (MFC) for Visual C++ from MSDN website:
http://msdn.microsoft.com/en-us/library/aa279838(VS.60).aspx
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CFont::CreateFontIndirect
BOOL CreateFontIndirect(const LOGFONT* lpLogFont );
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Here is the same function declaration in C from the Flat API:
http://msdn.microsoft.com/en-us/library/ms534009(VS.85).aspx
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HFONT CreateFontIndirect(
CONST LOGFONT* lplf // characteristics
);
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The :: is one indicator that an object oriented programming model is being used.
In this case there is a Flat API function available so it can be used and called via DllCall. If the Flat API function were not available then you couldn't use this function.
I don't know much about object oriented programming, but I think I can usually recognize it by looking at a function declaration. Perhaps someone who knows more about it can explain the difference better.
Anyway, hope this helps,
dmatch |
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heresy
Joined: 11 Mar 2008
Posts: 291
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| Posted: Thu May 22, 2008 5:45 am Post subject: |
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thanks for the answer dmatch
it's much clear now.
definitely helpful Thanks!
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