API documentation

Posted on 2000-04-13
Last Modified: 2010-04-04
I saw quite a few pieces of code before, that use functions in other dll files, such as kernel32.dll.

Where can I get a good documentation about these functions/dlls ?
I mean the "main" Windows-dlls.

Regards, Oli
Question by:Oli2
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Expert Comment

ID: 2712113
The best I know of is the API help that comes with Borland Delphi and of course the SDK-kit which ships with delphi as well. It gives a short description of what the functions does and the different parameters and there values.

Expert Comment

ID: 2712117
you should have a help file, win32.hlp eith the api functions listed.  the "quick info" for each function will tell you where it is defined.


Expert Comment

ID: 2712161
I think you can find nearly all the information you want on the MSDN library CD's. Nearly all API functions and much more information are covered on these CD's.

If you have a permanent or fast internet connection, you can also try and use the name of the API function you want information about as the search phrase.


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Author Comment

ID: 2712316
sorry, but:
The API help that ships with Delphi (that is the win32.hlp file) doesn't give me any information about functions in external dlls, like for example the RegisterServiceProcess in kernel32.dll.

on I don't find any good documentation on this stuff also (am I too stupid?)

What I'm looking for is something like
a list of most-used-dlls and their content.

Like this:
function RegisterServiceProcess
blabla description blabla
function HowShouldIknowWhatsInside
blabla another description blabla

There are people that tell me:
solve your problem by calling
function xx : yy external 'some.dll';

How do they know what's inside some.dll ?

Regards, Oli
LVL 17

Accepted Solution

inthe earned 38 total points
ID: 2712662
if want to know what api functions are inside what dll then use tdump on the dll.
tdump is in delphi\bin dir.

msdn is definetly best place to find out api has listings and example c code for mostly every api exist ,well not all but there is not much you cant find at msdn.
for instance find a function in a dll from tdump and search msdn for it you will find the answer/correct function calls and if lucky some code.
then search internet for example of same function and code in delphi.


Author Comment

ID: 2712851
Thanx Barry!
It's not as much comfort as I would like to have, but it's a starting point...

Regards, Oli
LVL 17

Expert Comment

ID: 2712973
the best books of api functions with full xamples for delphi is the "tomes" series.

tomes win32 core api
tomes win32 graphical api are 2 of them and can be got from for good prices.

Expert Comment

ID: 2714655
"SDK-kit which ships with delphi"


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