Re: friends of a class...

From:
"Ahmed Samieh" <Asm4pic@gmail.com>
Newsgroups:
comp.lang.c++
Date:
12 May 2006 07:15:30 -0700
Message-ID:
<1147443329.947998.279510@g10g2000cwb.googlegroups.com>
ammm,

post the prototybe of class
where u wanna create thread


look for example the prototype of my class like this
class MyClass {
private:
  HANDLE hThread;
  DWORD dwThreadID;
public:
  MyClass() {};
  void SetupThread();
  void Proc();
  void RunThread();
  ~MyClass() {};
};
the prototype of external function like this
DWORD WINAPI ThreadFunction(MyClass * const lpMyObject);

now where to create my thread ?

void MyClass::SetupThread() {
  hThread = CreateThread(NULL, // Pointer to Security Attributes
                                      0, // Stack Size The Same Size As
Primary Thread Of The Process
                                     (LPTHREAD_START_ROUTINE)
ThreadFunction, // Address Of Thread Function
                                     this, // Argument For New Thread
Function (the pointer to the object)
                                     CREATE_SUSPENDED, // Creation
Flags
                                     &dwThreadID); // address of thread
id
}
inside the class method named SetupThread, it will call the external
function named ThreadFunction , and will pass a pointer to the caller
object 'this'

when the thread resumed the function ThreadFunction will executed and
will call Proc() from the pointer passed to it like this
DWORD WINAPI ThreadFunction(MyClass * const lpMyObject) {
  lpMyObject->Proc();
  return 0;
}
now did i need to pass data to Proc() ? no, why ? coz all data that i
need exected in the object data members

if it is clear now , ok, else post ur code to understand ur problem

Ahmed

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