doubt in vector c++ inerst api

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C++

MFC

C++11

i have insert function with class pointer :

the code is as follows :

InsertAt(int ptNum, myclass *point2Array)
{
const MtPoint2d * PointArray = point2Array->GetData();
	if (PointArray == NULL) 
	{
		return; 
	}

m_PointVectors.insert(m_PointVectors.begin() + ptNum, *point2Array);
}

this is not wortking can u tell any other soulution.not giving correct value

std::vector<int> m_PointVectors;

the function fails in following scenario :
myclass obj;
obj.emplace-back(3,4);
obj.emplace_back(5,6)
obj.emplace_back(7,8)
obj.emplace_back(3,6)

size = 3

myclass obj2;
obj2.copy(obj);

//aobve function
obj.InsertAt(3, &obj2);
size should be 6 //but its nt wrking
//inssert not accepting class pointer