Variable-length parameter list in DllImports

[chiph]

I need to call into a Win32 DLL where the function prototype has a variable-length parameter list (much like the printf function in classic C).

I suspect using parameter-arrays may work, but curious if anyone has done this yet.

Thanks.
Chip H.


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[obislavu]

Hi chiph,
You can do that using RunTimeArgumentHandle and ArgIterator classes (structures). I have not an working example (with a WIN32 DLL) now to post here but the RunTimeArgumentHandle structure is the only one that support C/C++ functions that take a variable number of arguments.
-obislavu-

 

[chiph]

Cool, thanks. I hadn't seen those structures. I'll take a look (it'll be a few days, I just got pulled off onto something else).

Chip H.


If you want to get the best response to a question, please check out FAQ222-2244 first