The 3 rd argument to pthead_create is a function pointer.
and the format is void *(*start_routine) ( void *).

I want to use the class method as a start_routine.

I have defined a class called Handler which consist of a method
void* Handler :: ThreadHandler (void *);


I have tried to use as follows:
my code ...
.
.
.
pthread_t ThId;
int Id;
Handler objHandler;
.
.
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pthread_create ( &ThId , NULL , &(objHandler.*ThreadHandler), &Id );

but it gives error of type miss match for 3rd argument.

Can I use this method as start_routine for thread .
Please let me know if there is another way to achive this.

i tink c++ syntax is objHandler::ThreadHandler . but dont hold me to that.

Non-static class method functions use their own calling convention that stores a "this" pointer. In order to use a member function of a class as a C-style callback function, you generally need to make it static. However, you should be aware that because a static function doesn't use this same calling convention that stores a "this" pointer, the only class members you can access from a static function is other static members.