winspool.drv: Use the Unix call helpers.

dlls/winspool.drv/wspool.c

@@ -48,7 +48,6 @@ static CRITICAL_SECTION backend_cs = { &backend_cs_debug, -1, 0, 0, 0, 0 };
 /* ############################### */
 
 HINSTANCE WINSPOOL_hInstance = NULL;
-unixlib_handle_t winspool_handle = 0;
 
 static HMODULE hlocalspl;
 static BOOL (WINAPI *pInitializePrintProvidor)(LPPRINTPROVIDOR, DWORD, LPWSTR);
@@ -115,8 +114,7 @@ BOOL WINAPI DllMain( HINSTANCE instance, DWORD reason, void *reserved )
     case DLL_PROCESS_ATTACH:
         WINSPOOL_hInstance = instance;
         DisableThreadLibraryCalls( instance );
-        if (!NtQueryVirtualMemory( GetCurrentProcess(), instance, MemoryWineUnixFuncs,
-                                   &winspool_handle, sizeof(winspool_handle), NULL ))
+        if (!__wine_init_unix_call())
             UNIX_CALL( process_attach, NULL );
         WINSPOOL_LoadSystemPrinters();
         break;

dlls/winspool.drv/wspool.h

@@ -72,9 +72,7 @@ struct schedule_job_params
     const WCHAR *wine_port;
 };
 
-extern unixlib_handle_t winspool_handle DECLSPEC_HIDDEN;
-
-#define UNIX_CALL( func, params ) __wine_unix_call( winspool_handle, unix_ ## func, params )
+#define UNIX_CALL( func, params ) WINE_UNIX_CALL( unix_ ## func, params )
 
 enum cups_funcs
 {