Hi, I'm trying to wrap a function of BASS sound library so I can learn how it 
works. My code is:
    
    
    #{. emit: """#include "bass.h" """ .}
    type dword {. importc: "DWORD" .} = uint32
    type hwnd {. importc: "HWND" .} = uint32
    type guid {. importc: "struct GUID" .}= object
    type cbool {. importc: "BOOL" .} = uint32

proc BASS_Init* (device: cint, frequency, flags: cuint, win: hwnd, guid: ptr 
guid): cbool {. importc, cdecl, header: "bass.h" .} echo $int(BASS_Init(-1, 
44100, 0, 0, nil))

The function I'm wrapping is:
    
    
    BOOL BASSDEF(BASS_Init)(int device, DWORD freq, DWORD flags, HWND win, 
const GUID *dsguid);

The reason I'm passing a nil pointer in the call to BASS_Init is because BASS 
will use the default value if it's null. Any hints?

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