global structure; access between dialogs

I'm afraid I didn't get you exactly. What I get is, you have a strucuture (message strucuture), that has to be accessed from multiple dialogs (currently two, main and its child), right?. How many instances will be there of this message structures? If one, then I think Singleton is a better choice.

So what I did right is that after the message are retrieved, each dialog is set with the messages. So each dialog has a message structure class member.

You mean that each dialog has its own message strucuture and when you get a message, you fill these message strucutures (in parent and child dialogs)?

Btw, could you elaborate in detail that what exactly do you want to achieve?

i just read your last post only regarding singelton class .you can achieve this in two way.

1)

if you don't know singelton class concept no need to worry.A static variable can do this work for you. Just declare a static variable in your class or in structure what ever u r using. At the time of calling your class just increment the value of variable and check if it is more then 1 not to show dialog or not to proceed and when u release it just decrement the value of varibale

static variable :- used for singel time initialization

2)
and how to use singelton class here is one example to make a class as singelton class.



class MySingleton {
private:
static MySingleton *myReference;
MySingleton()
{
}

public:
static MySingleton *getInstance()
{
if(myReference==NULL)
myReference = new MySingleton();

return myReference;
}
};




or u can write like this (how to make a structure to a singelton)

struct MySingleton
{
static MySingleton* get_instance()
{
static MySingleton* instance=0;
if(instance==0)
instance = new MySingleton;
return instance;
}
private:
MySingleton(){}
~MySingleton(){}
};



up side i mention two different approact u can choose any one.

Hello ejaz and humptydumpty, thanks very many for the insights.. I try those approaches...:wave:

Hello ejaz and humptydumpty, thanks very many for the insights.. I try those approaches...:wave:
u welcome

Will this class be access from various threads? Because in this simple singleton implementation is not thread-safe.

No only single thread. But how do you make it into thread-safe??