This is the root class of all wxWidgets classes.
It declares a virtual destructor which ensures that
destructors get called for all derived class objects where necessary.
wxObject is the hub of a dynamic object creation
scheme, enabling a program to create instances of a class only knowing
its string class name, and to query the class hierarchy.
The class contains optional debugging versions
of new and delete, which can help trace memory allocation
and deallocation problems.
Default and copy constructors.
Destructor. Performs dereferencing, for those objects
that use reference counting.
Pointer to an object which is the object's reference-counted data.
void Dump(ostream& stream)
A virtual function that may be redefined by derived classes to allow dumping of
This function is only defined in debug build and doesn't exist at all if
__WXDEBUG__ is not defined.
Stream on which to output dump information.
Currently wxWidgets does not define Dump for derived classes, but
programmers may wish to use it for their own applications. Be sure to
call the Dump member of the class's base class to allow all information to be
The implementation of this function in wxObject just writes the class name of
This virtual function is redefined for every class that requires run-time
type information, when using DECLARE_CLASS macros.
Returns the m_refData pointer.
Determines whether this class is a subclass of (or the same class as)
the given class.
A pointer to a class information object, which may be obtained
by using the CLASSINFO macro.
true if the class represented by info is the same class as
this one or is derived from it.
bool tmp = obj->IsKindOf(CLASSINFO(wxFrame));
Returns true if this object has the same data pointer as obj. Notice
that true is returned if the data pointers are NULL in both objects.
This function only does a shallow comparison, i.e. it doesn't compare
the objects pointed to by the data pointers of these objects.
Makes this object refer to the data in clone.
The object to 'clone'.
First this function calls wxObject::UnRef
to decrement (and perhaps free) the data it is currently referring to.
It then sets its own m_refData to point to that of clone, and increments the reference count
inside the data.
Sets the m_refData pointer.
Decrements the reference count in the associated data, and if it is zero, deletes the data.
The m_refData member is set to NULL.
Ensure that this object's data is not shared with any other object.
if we have no
data, it is created using CreateRefData() below, if we have shared data
it is copied using CloneRefData(), otherwise nothing is done.
void * new
, const wxString& filename = NULL
, int lineNum = 0
The new operator is defined for debugging versions of the library only, when
the identifier __WXDEBUG__ is defined. It takes over memory allocation, allowing
void delete(void buf)
The delete operator is defined for debugging versions of the library only, when
the identifier __WXDEBUG__ is defined. It takes over memory deallocation, allowing