Hi,
I have to wrap a C++ API for Python. There are a couplt of difficulties:
- The C++ classes have private constructors.
- pointers to class instances are parameters for functions
- callbacks that are initiated by the C++ side, but call functions
implemented on the Python side.
How do I do that? Any hint is appreciated.
Example:
class X
{
public:
X();
virtual ~X();
virtual callback(A* a) = 0;
};
class Y::X
{
Y();
~Y();
callback(A* a);
}
class M
{
public:
M();
virtual ~M()
protected:
M(const M& m);
M & operator=(const M& m);
}
class N::M
{
public:
N()
virtual ~N()
private
N(const N& n);
N& operator=(const N& n);
}
class A:
{
public:
A();
protected:
A(const A& a);
A& operator=(const A& a)
}
class B::A
{
public:
B();
void create(Y* y, M* m);
private:
B(const B& b);
B& operator=(const B& b);
};
=====================================================
Python:
class Y:
__init__():
pass
def callback(a):
print "callback implemented in python"
y=Y()
n=N()
b=B()
b.create(y, n)
The callback function y.callback(A* a) will be called by the C++ API when
an event occurs.
Kind Regards
Manuela Kaelberer
----------------------------------------------
Manuela Kälberer
IT FM Consulting (1432 H)
Landesbank Baden-Württemberg
Am Hauptbahnhof 2
D-70173 Stuttgart
Phone +49 711 127-43753
Fax +49 711 127-437 59
manuela.kaelbe...@lbbw.de
www.LBBW.de
Landesbank Baden-Wuerttemberg
Anstalt des oeffentlichen Rechts
Hauptsitze: Stuttgart, Karlsruhe, Mannheim, Mainz
HRA 12704
Amtsgericht Stuttgart
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