DECLARE_DYNAMIC and IMPLEMENT_RUNTIMECLASS macros in VC8

DECLARE_DYNAMIC and IMPLEMENT_RUNTIMECLASS macros in VC8

• Fylar

  Just on a short look: Your class is a template so the classname doesn't match.

  
  
  

• DIG

  Yes, Martin you are right but we have written our own macro in vc6 that is using IMPELEMENT / DECLARE mfc macro, now if i'm trying to modify our macro accroding to vc8 mfc for GetThisClass function then it is giving compilation error otherwise it is giving runtime error.

  Error : 1>gxextbl.obj : error LNK2019: unresolved external symbol "public: static struct CRuntimeClass * __stdcall CGXExcelFontTable::GetThisClass(void)" ( GetThisClass@CGXExcelFontTable@@SGPAUCRuntimeClass@@XZ) referenced in function "public: virtual struct CRuntimeClass * __thiscall CGXExcelFontTable::GetRuntimeClass(void)const " ( GetRuntimeClass@CGXExcelFontTable@@UBEPAUCRuntimeClass@@XZ)

  some inputs:

  class CGXExcelFontTable : public CGXExcelBaseTable<fontStruct, CGXStyle> {

  DECLARE_DYNCREATE(CGXExcelFontTable)

  ---- }

  template<class T, class T1 = _cgxNullClass>

  class CGXExcelBaseTable : public CGXExcelTable {

  DECLARE_DYNAMIC(CGXExcelBaseTable)

  --- }

  class CGXExcelTable : public CObject {

  DECLARE_DYNAMIC(CGXExcelTable)

  -- }

  GXEXIMPLEMENT_DYNAMIC(CGXExcelBaseTable, CGXExcelTable, T, T1)

  GXEXIMPLEMENT_DYNCREATE(CGXExcelFontTable, CGXExcelBaseTable, fontStruct, CGXFont)

  #define GXEXRUNTIME_CLASS(class_name, temp_arg, temp_arg1) ((CRuntimeClass*)(&class_name<temp_arg, temp_arg1>::class##class_name))

  #ifdef _AFXDLL

  #define GXEXIMPLEMENT_RUNTIMECLASS(class_name, base_class_name, temp_arg, temp_arg1, wSchema, pfnNew)\

  template<class temp_arg, class temp_arg1>\

  CRuntimeClass* PASCAL class_name<temp_arg, temp_arg1>::_GetBaseClass()\

  { return RUNTIME_CLASS(base_class_name); }\

  template<class temp_arg, class temp_arg1>\

  const AFX_DATADEF CRuntimeClass class_name<temp_arg, temp_arg1>::class##class_name = {\

  #class_name, sizeof(class##class_name), wSchema, pfnNew,\

  &class_name::_GetBaseClass, NULL };\

  template<class temp_arg, class temp_arg1>\

  CRuntimeClass* class_name<temp_arg, temp_arg1>::GetRuntimeClass() const\

  { return GXEXRUNTIME_CLASS(class_name, temp_arg, temp_arg1); }

  //CRuntimeClass* PASCAL class_name::GetThisClass() \

  // { return _RUNTIME_CLASS(class_name); }

  #define GXEXDERIMPLEMENT_RUNTIMECLASS(class_name, base_class_name, temp_arg, temp_arg1, wSchema, pfnNew)\

  CRuntimeClass* PASCAL class_name::_GetBaseClass()\

  { return GXEXRUNTIME_CLASS(base_class_name, temp_arg, temp_arg1); }\

  const AFX_DATADEF CRuntimeClass class_name::class##class_name = {\

  #class_name, sizeof(class##class_name), wSchema, pfnNew,\

  &class_name::_GetBaseClass, NULL };\

  CRuntimeClass* class_name::GetRuntimeClass() const\

  { return RUNTIME_CLASS(class_name); }

  #else

  #define GXEXIMPLEMENT_RUNTIMECLASS(class_name, base_class_name, temp_arg, temp_arg1, wSchema, pfnNew) \

  template<class temp_arg, class temp_arg1>\

  const AFX_DATADEF CRuntimeClass class_name<temp_arg, temp_arg1>::class##class_name = { \

  #class_name, sizeof(class class_name<temp_arg, temp_arg1>), wSchema, pfnNew, \

  RUNTIME_CLASS(base_class_name), NULL }; \

  template<class temp_arg, class temp_arg1>\

  CRuntimeClass* class_name<temp_arg, temp_arg1>::GetRuntimeClass() const \

  { return GXEXRUNTIME_CLASS(class_name, temp_arg, temp_arg1); } \

  #define GXEXDERIMPLEMENT_RUNTIMECLASS(class_name, base_class_name, temp_arg, temp_arg1, wSchema, pfnNew) \

  const AFX_DATADEF CRuntimeClass class_name::class##class_name = { \

  #class_name, sizeof(class class_name), wSchema, pfnNew, \

  GXEXRUNTIME_CLASS(base_class_name, temp_arg, temp_arg1), NULL }; \

  CRuntimeClass* class_name::GetRuntimeClass() const \

  { return RUNTIME_CLASS(class_name); }

  #endif //_AFXDLL

  #define GXEXIMPLEMENT_DYNAMIC(class_name, base_class_name, temp_arg, temp_arg1) \

  GXEXIMPLEMENT_RUNTIMECLASS(class_name, base_class_name, temp_arg, temp_arg1, 0xFFFF, NULL)

  #define GXEXIMPLEMENT_DYNCREATE(class_name, base_class_name, temp_arg, temp_arg1) \

  CObject* PASCAL class_name::CreateObject() \

  { return new class_name; } \

  GXEXDERIMPLEMENT_RUNTIMECLASS(class_name, base_class_name, temp_arg, temp_arg1, 0xFFFF, \

  class_name::CreateObject)

  #define GXEX_TRY(fn)\

  try\

  {\

  fn ;\

  }\

  catch(READSEEKEXCEP* pErr)\

  {\

  pErr->ReportError();\

  pErr->Destroy();\

  }

  #endif //_GXEXMAC_H__

  Hope you will get some clue..

  Thanks in advance.

  Regards,

  Madhur

  
  
  

• Tasnim

  And why is this a problem As long as you do not simulate or rewrote the macros for your own purpose there is no problem, beause the IMPELEMENT/DECLARE macros do everything thats needed.
  
  
• DECLARE_DYNAMIC and IMPLEMENT_RUNTIMECLASS macros in VC8