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Hi!

I work on a Dll in Delphi. I use the 'stdcall' calling directive for the functions and procedures and it works well when I pass integer-type parameters to a function from darkbasic or when I pass function result to darkbasic.
But I have problems with passing floating-point variables! I selected the Single type in delphi for the floating-point variables because I think DB uses 4 bytes to store real values. When I try to pass a real value from DB to a dll function it works well, too. However, if I try to pass a real (single-type) value as a function result from the dll to DB, DB always gets 0.
I have already tried with other real types like Real,Extended,etc. but DB always gets 0.
Would you be so kind to help me?
I look forward to hearing from you!

Thanks,
Ádám Szabó

DBpro expects function results in the EAX register no matter what type they are. That means you need to use the following approach:

Ahh thanx for that!

I use DB Classic but it works there, too!
Many thanks for that!!!