TObject/TD2CObject |
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What is translated > Meta information > TObject/TD2CObject
The class TObject, which is defined in the files d2c_sysobj.h and d2c_sysobj.cpp can be used with other compilers than C++ Builder as basis for a substitute of TObject of the Borland VCL. The class TD2CObject can be used with C++ Builder to enrich the capabilities of TObject, which already exists there. Analogously TMetaClass and TD2CMetaClass are used with other compilers or with C++ Builder.
TObject/TD2CObject and TMetaClass/TD2CMetaClass mainly consist of the same functions:
The methods of TMetaClass/TD2CMetaClass correspond to the static methods of TObject/TD2CObject. They have the same functionality but differ in parameters. Whereas the TObject/TD2CObject methods take a TClass/TD2CClass (TD2CMetaClass*/TMetaClass*) as the first parameter, this parameter is implicit in the TMetaClass/TD2CMetaClass methods.
These methods are known from Delphi and their description can be found in the Delphi help files. There is a difference, though: name and type information result from std::type_info in C++ and their values are different from the values in Delphi.
virtual const char* __fastcall ClassName() const; virtual bool __fastcall ClassNameIs(const char* S) const; virtual TClass __fastcall ClassParent() const; virtual void * __fastcall ClassInfo() const; virtual bool __fastcall InheritsFrom(TClass aClass) const; virtual TObject* __fastcall NewInstance() const; virtual TObject* __fastcall Create() const;
The implementation was made by template meta programming.
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