C / C++ / MFC

Hi All,

I'm trying to create Instant Messaging software for Windows.
What are the options for the core chat technology?

Is Microsoft Bot Framework a good choice for one-one chat?
Its planed for man-bot so not sure about that...

In addition I don't want to implement it from the ground, WINSOCK etc

I prefer use an already tested platform or library for that
Is DCOM or MSMQ a good choise ?


please advice
mithrhill

ON_MESSAGE(WM_COPYDATA,Debug_it)

int Array::Search(int target, int* start, int* tail){
	if(start>tail){
		cout<<"not find"<<endl;
		return -1;
	}
	int offsetMid= (tail-start)/2/sizeof(int);//by unit of int
	cout<<"offset: "<<offsetMid<<"  mid " <<*(start+offsetMid)<<endl;
	cout<<start<<" " <<tail<<endl;
	if(target == *(start+offsetMid) ){
		cout<<"mid"<<endl;
		return (offsetMid+1);
	}
	if(*(start+offsetMid) > target){
		cout<<"left"<<endl;
		tail = start+(offsetMid-1)*sizeof(int);
		return Search(target, start, tail);
	}
	if(*(start+offsetMid) < target){
		cout<<"right"<<endl;
		start = start+(offsetMid)*sizeof(int);
		return Search(target,start , tail);
	}
}

gcc version 6.2.1 20160916 (Red Hat 6.2.1-2) (GCC) 

int offsetMid= (tail-start)/2/sizeof(int);//by unit of int

if(*(start+offsetMid) > target)

But when I want to plus the offset value to the start address to get the value in a particular position, I shouldn't time it by sizeof(int).WHY??