using wkhtmltopdf with D

[Nicholas Wilson]

On Tuesday, 29 May 2018 at 01:43:17 UTC, Mike Parker wrote:
> In pdf.h, that CAPI macro is used in every function 
> declaration. That means that on Windows, all of the functions 
> have the __stdcall calling convention (which, in D, would be 
> extern(Windows)) and the standard cdecl calling convetion on 
> other platforms (extern(C) in D).
>
> In the D binding, we see that all of the functions are declared 
> as extern(C) (line 4 of pdf.d). That means on Windows, the 
> calling convention on the D side is incorrect.
>
> What you need to do is to change that extern(C) delcaration in 
> pdf.d to extern(System). This will translate to extern(Windows) 
> on Windows and extern(C) elsewhere to match the C headers.

this is represented by extern(System) in D which does the 
conditional
extern(C) vs extern(Windows) for you.