Best resources for converting C/C++ dll headers to Delphi?

Question

A rather comprehensive site explaining the difficulties and solutions involved in using a dll written in c/c++ and the conversion of the .h header file to delphi/pascal was posted to a mailing list I was on recently, so I thought I'd share it, and invite others to post other useful resources for this, whether they be links, conversion tools, or book/paper titles.

One resource per answer please, so we'll end up with the most popular/best resources bubbling to the top.

Solution 1

Over at Rudy's Delphi Corner, he has an excellent article about the pitfalls of converting C/C++ to Delphi. In my opinion, this is essential information when attempting this task. Here is the description:

This article is meant for everyone who needs to translate C/C++ headers to Delphi. I want to share some of the pitfalls you can encounter when converting from C or C++. This article is not a tutorial, just a discussion of frequently encountered problem cases. It is meant for the beginner as well as for the more experienced translator of C and C++.

He also wrote a "Conversion Helper Package" that installs into the Delphi IDE which aids in converting C/C++ code to Delphi:

_{(source: rvelthuis.de)}

His other relevant articles on this topic include:

• Using C++ Objects in Delphi
• Using C object files in Delphi

Solution 2

Article at Rudy's Delphi Corner

Solution 3

Also, CodeGear hosts a rudimentary translation tool called CToPas (written by Ural Gunaydin).

Solution 4

I would like to highlight the Jedi Api Library, it is the Delphi translation of the Windows SDK headers. Might save you a lot of work if you need to translate headers from the SDK and is of course a good sample of conversions!

Solution 5

Since FreePascal is aimed at Delphi compatibiltiy among other things, i think H2Pas may be helpful too.

https://www.freepascal.org/tools/h2pas.var

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