C / C++ / MFC

Abhijit D. Babar wrote:

I just want to pass the parameter for dialog class before dialog get invoke.

Abhijit D. Babar wrote:

Can i create user defined constructor for dialog class CSample.

Abhijit D. Babar wrote:

If i want to pass some parameter to this class through constructor, can i pass it?

CSample (CWnd* pParent = NULL);

CSample obj; // equivalent to-> CSample obj (NULL);
obj.SetParam1(value1);
obj.SetParam2(value2);
...
obj.DoModal ();

Regards.
--------
M.D.V.

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Nelek wrote:

I would use Set/Get methodes to pass parameters, because if you overload the constructor parameters, it may be that the MFC (if you use it) gives you problems if you have an error overloading the constructor. After just use the contructor to initialize the member variables/pointers

#ifndef _INTPTR_T_DEFINED
	#ifdef  _WIN64
		typedef __int64             intptr_t;
	#else
		typedef _W64 int            intptr_t;
	#endif
	#define _INTPTR_T_DEFINED
#endif

#ifndef _PTRDIFF_T_DEFINED
	#ifdef  _WIN64
		typedef __int64             ptrdiff_t;
	#else
		typedef _W64 int            ptrdiff_t;
	#endif
	#define _PTRDIFF_T_DEFINED
#endif

class A
{
  int a;
public:
  A(int a)
  {
    // here the constructor parameter is assigned to the class member variable.
    this->a = a; 
  }
};

hrishi321 wrote:

wheneerv a message comes i want to put in a queue..and the reciever function returns the control...now i want to have a thread, which will keep looking onto the queue...if empty, do nothing....if not empty then process the message....

hrishi321 wrote:

main reason to do this is...instead of having the while loop in the thread function, which will eat CPU cycle, i want some mechanism to do task only when needed)...