Added a new implementation of the ICOM macros that use Microsoft style

virtual methods to implement the COM interfaces in C++.

include/wine/obj_base.h

@@ -312,6 +312,11 @@ inline BOOL operator!=(const GUID& guidOne, const GUID& guidOther)
 #ifndef ICOM_CINTERFACE
 /* C++ interface */
 
+#ifndef ICOM_VIRTUAL_METHODS
+/* Uses these macros, i.e. do not define ICOM_VIRTUAL_METHODS, if your C++ compiler does not generate 
+ * virtual tables with the right layout (i.e. currently most g++ derivatives).
+ */
+
 #define ICOM_METHOD(ret,xfn) \
     private: ret (CALLBACK *fn##xfn)(ICOM_INTERFACE* me); \
     public: inline ret (CALLBACK xfn)(void) { return ((ICOM_INTERFACE*)t.lpvtbl)->fn##xfn(this); };
@@ -468,6 +473,136 @@ inline BOOL operator!=(const GUID& guidOne, const GUID& guidOther)
     public: inline void (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g,th h) const { ((ICOM_INTERFACE*)t.lpvtbl)->fn##xfn(this,a,b,c,d,e,f,g,h); };
 
 
+#define ICOM_DEFINE(iface,ibase) \
+    typedef struct iface: public ibase { \
+        iface##_METHODS \
+    };
+
+#else
+/* This case can be used if the layout of the virtual tables generated by the C++ 
+ * compiler matches that of Visual C++.
+ */
+
+#define ICOM_METHOD(ret,xfn) \
+    virtual ret (CALLBACK xfn)(void) = 0;
+
+#define ICOM_METHOD1(ret,xfn,ta,na) \
+    virtual ret (CALLBACK xfn)(ta a) = 0;
+
+#define ICOM_METHOD2(ret,xfn,ta,na,tb,nb) \
+    virtual ret (CALLBACK xfn)(ta a,tb b) = 0;
+
+#define ICOM_METHOD3(ret,xfn,ta,na,tb,nb,tc,nc) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c) = 0;
+
+#define ICOM_METHOD4(ret,xfn,ta,na,tb,nb,tc,nc,td,nd) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d) = 0;
+
+#define ICOM_METHOD5(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e) = 0;
+
+#define ICOM_METHOD6(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f) = 0;
+
+#define ICOM_METHOD7(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g) = 0;
+
+#define ICOM_METHOD8(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng,th,nh) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g,th h) = 0;
+
+#define ICOM_METHOD9(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng,th,nh,ti,ni) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g,th h,ti i) = 0;
+
+#define ICOM_METHOD10(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng,th,nh,ti,ni,tj,nj) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g,th h,ti i,tj j) = 0;
+
+
+#define ICOM_CMETHOD(ret,xfn) \
+    virtual ret (CALLBACK xfn)(void) const = 0;
+
+#define ICOM_CMETHOD1(ret,xfn,ta,na) \
+    virtual ret (CALLBACK xfn)(ta a) const = 0;
+
+#define ICOM_CMETHOD2(ret,xfn,ta,na,tb,nb) \
+    virtual ret (CALLBACK xfn)(ta a,tb b) const = 0;
+
+#define ICOM_CMETHOD3(ret,xfn,ta,na,tb,nb,tc,nc) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c) const = 0;
+
+#define ICOM_CMETHOD4(ret,xfn,ta,na,tb,nb,tc,nc,td,nd) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d) const = 0;
+
+#define ICOM_CMETHOD5(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e) const = 0;
+
+#define ICOM_CMETHOD6(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f) const = 0;
+
+#define ICOM_CMETHOD7(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g) const = 0;
+
+#define ICOM_CMETHOD8(ret,xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng,th,nh) \
+    virtual ret (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g,th h) const = 0;
+
+
+#define ICOM_VMETHOD(xfn) \
+    virtual void (CALLBACK xfn)(void) = 0;
+
+#define ICOM_VMETHOD1(xfn,ta,na) \
+    virtual void (CALLBACK xfn)(ta a) = 0;
+
+#define ICOM_VMETHOD2(xfn,ta,na,tb,nb) \
+    virtual void (CALLBACK xfn)(ta a,tb b) = 0;
+
+#define ICOM_VMETHOD3(xfn,ta,na,tb,nb,tc,nc) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c) = 0;
+
+#define ICOM_VMETHOD4(xfn,ta,na,tb,nb,tc,nc,td,nd) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d) = 0;
+
+#define ICOM_VMETHOD5(xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d,te e) = 0;
+
+#define ICOM_VMETHOD6(xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f) = 0;
+
+#define ICOM_VMETHOD7(xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g) = 0;
+
+#define ICOM_VMETHOD8(xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng,th,nh) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g,th h) = 0;
+
+
+#define ICOM_CVMETHOD(xfn) \
+    virtual void (CALLBACK xfn)(void) const = 0;
+
+#define ICOM_CVMETHOD1(xfn,ta,na) \
+    virtual void (CALLBACK xfn)(ta a) const = 0;
+
+#define ICOM_CVMETHOD2(xfn,ta,na,tb,nb) \
+    virtual void (CALLBACK xfn)(ta a,tb b) const = 0;
+
+#define ICOM_CVMETHOD3(xfn,ta,na,tb,nb,tc,nc) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c) const = 0;
+
+#define ICOM_CVMETHOD4(xfn,ta,na,tb,nb,tc,nc,td,nd) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d) const = 0;
+
+#define ICOM_CVMETHOD5(xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d,te e) const = 0;
+
+#define ICOM_CVMETHOD6(xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f) const = 0;
+
+#define ICOM_CVMETHOD7(xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g) const = 0;
+
+#define ICOM_CVMETHOD8(xfn,ta,na,tb,nb,tc,nc,td,nd,te,ne,tf,nf,tg,ng,th,nh) \
+    virtual void (CALLBACK xfn)(ta a,tb b,tc c,td d,te e,tf f,tg g,th h) const = 0;
+
+#endif
+
+
 #define ICOM_DEFINE(iface,ibase) \
     typedef struct iface: public ibase { \
         iface##_METHODS \
@@ -664,17 +799,20 @@ struct IUnknown {
 };
 struct ICOM_VTABLE(IUnknown) {
     ICOM_METHOD2(HRESULT,QueryInterface,REFIID,riid, LPVOID*,ppvObj);
-#else
+#else /* ICOM_CINTERFACE */
 struct IUnknown {
+#ifndef ICOM_VIRTUAL_METHODS
     union {
         const void* lpvtbl;
         HRESULT (CALLBACK *fnQueryInterface)(IUnknown* me, REFIID riid, LPVOID* ppvObj);
     } t;
     inline int QueryInterface(REFIID a, LPVOID* b) { return ((IUnknown*)t.lpvtbl)->t.fnQueryInterface(this,a,b); }
-#endif
+#else /* ICOM_VIRTUAL_METHODS */
-
+    ICOM_METHOD2(HRESULT,QueryInterface,REFIID,riid, LPVOID*,ppvObj)
-    ICOM_METHOD (ULONG,AddRef);
+#endif /* ICOM_VIRTUAL_METHODS */
-    ICOM_METHOD (ULONG,Release);
+#endif /* ICOM_CINTERFACE */
+    ICOM_METHOD (ULONG,AddRef)
+    ICOM_METHOD (ULONG,Release)
 };
 #undef ICOM_INTERFACE