Answer Posted / bijender singh
MFC support two type of thread : Worker Thread & UI thread.
There is an overloaded function called AfxBeginThread()for
creating threads in MFC but at APT level you can't
differentaite.
At implementation level you can find the difference:-
For worker thread:
AfxBeginThread(); It takes 6 parameters, first param as
address of thread controlling function(must),2nd as
parameter passed to threadfn(must),3'rd thread priority
level(optional), 4'th as stack size(Optional),5'th as
create_flag(optional),6'th security class(optional)etc.
For UI(User Interface) thread:
Derive a class from CWinThread;
class CMyThread:public CWinThread
{
.....
.....
.....
}
Override the InitInstance() function in this class.
Then use the function
AfxBeginThread()and pass the parameter in RUNTIME_CLASS
macro in this func.
i.e. AfxBeginThread(RUNTIME_CLASS(CMyThread));
It takes 5 parameters ...rest of last four params are same
as worker thread which are optional.
So in this you can create the Worker and User Interface
threads.
| Is This Answer Correct ? | 5 Yes | 2 No |
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