Accessing prefs service using xpcomglue

[Andrew Goodale]

I am trying to access the proxy settings for Mozilla using the prefs 
service from a Windows C++ application. To minimize DLL depenedencies, I 
would like to use xpcomglue.lib. I don't want to redistribute Mozilla, I 
just want to use the prefs if it is installed. Our application uses IE 
or Mozilla proxy settings depending upon which browser is installed and 
preferred.

I'm including these headers:
#include <nsCOMPtr.h>
#include <nsIPref.h>
#include <nsIServiceManagerUtils.h>
and getting the prefs service using:
{
    nsCOMPtr<nsIPref> pMozPrefs(do_GetService(NS_PREF_CONTRACTID, &rv));
}
and linking against xpcomglue.lib.

My Mozilla tree is the 1.0 tree, and I'm using Visual C++.NET. (VC7)

The problem is I'm getting a few link errors:

error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
virtual __thiscall 
nsGetServiceByContractID::~nsGetServiceByContractID(void)" 
(__imp_??1nsGetServiceByContractID@@[EMAIL PROTECTED]) referenced in function 
"public: __thiscall CERHttpProxyInfoMoz::CERHttpProxyInfoMoz(void)" 
(??0CERHttpProxyInfoMoz@@[EMAIL PROTECTED])
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
__thiscall nsGetServiceByContractID::nsGetServiceByContractID(char const 
*,class nsISupports *,unsigned int *)" 
(__imp_??0nsGetServiceByContractID@@[EMAIL PROTECTED]@@[EMAIL PROTECTED]) 
referenced in function "class nsGetServiceByContractID const __cdecl 
do_GetService(char const *,unsigned int *)" 
(?do_GetService@@YA?BVnsGetServiceByContractID@@[EMAIL PROTECTED])
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
static void __cdecl nsDebug::PreCondition(char const *,char const *,char 
const *,int)" ([EMAIL PROTECTED]@@[EMAIL PROTECTED]) referenced in 
function "public: class nsDerivedSafe<class nsIPref> * __thiscall 
nsCOMPtr<class nsIPref>::operator->(void)const " 
([EMAIL PROTECTED]@@@@[EMAIL PROTECTED]@@@@XZ)
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
static void __cdecl nsDebug::Assertion(char const *,char const *,char 
const *,int)" ([EMAIL PROTECTED]@@[EMAIL PROTECTED]) referenced in 
function "public: void __thiscall nsCOMPtr<class 
nsIPref>::Assert_NoQueryNeeded(void)" 
([EMAIL PROTECTED]@VnsIPref@@@@QAEXXZ)
error LNK2019: unresolved external symbol "__declspec(dllimport) public: 
__thiscall nsQueryInterface::nsQueryInterface(class nsISupports 
*,unsigned int *)" 
(__imp_??0nsQueryInterface@@[EMAIL PROTECTED]@@[EMAIL PROTECTED]) referenced in 
function "class nsQueryInterface const __cdecl do_QueryInterface(class 
nsISupports *,unsigned int *)" 
(?do_QueryInterface@@YA?BVnsQueryInterface@@PAVnsISupports@@[EMAIL PROTECTED])

Any ideas on what the problem(s) are? Do I need a more modern Mozilla tree?

Thanks in advance,

Andrew Goodale
Developer, Choreographer
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