How to use the variables in another class

Hi all,
I have class CTestView and CChartDlg , I want to use an array of CTestView in the other class, here is the code:

Code:

---

class CTestView : public CView
{
        ...........................
public:
        int  num[10]
        void fun();

        ...................................       
};
    .........................
 void CTestView::fun()
{
      ................
    for (int i=0;i<10;i++)
          num[i]=i;
    .........
}

---

the other class:

Code:

---

class CChartDlg : public CDialog
{
public:
      CChartDlg(CWnd* pParent = NULL);
  .......................
protected:
    afx_msg void OnCreate();
  .........................
}
 ...............................
void CChartDlg::OnCreate()
{  ...............
  // I want to use num[0]~num[9] in this function.

}

---

I want to use num[0]~num[9] in class CChartDlg
I tried CCentriodView getv;
but getv.num[0] is not the right num ,can anyone help me with this?Thank you !

I really want to help but I still am jobless after all :D. Don't be that dependent on forums messages.

Quote:

---

Originally Posted by Maejie

I really want to help but I still am jobless after all :D. Don't be that dependent on forums messages.

---

I have tried some methods , but failed ,well ,thank you all the same !

Quote:

---

Originally Posted by Angela2010

I have tried some methods , but failed ,well ,thank you all the same !

---

Do you invoke CChartDlg from CTestView? If so, pass in a pointer of CTestDlg to CChartDlg.

Code:

---

CChartDlg dlg(this);
dlg.DoModal();

---

Quote:

---

Originally Posted by Angela2010

I have tried some methods , but failed ,well ,thank you all the same !

---

Wou are welcome!
How you tried, how they failed?

Hi , I am also trying for the same. I need to use a same structure in two different files and in two independant classes ...

May I know the method ?

Last option will be declaring the struct in both the files ..

I have made a common header file .. but I feel that is a C prog method. Should I define a class and use Friend operation ?

Quote:

---

Originally Posted by ManishaSantosh

I have made a common header file .. but I feel that is a C prog method.

---

Then why does C++ have header files such as <iostream>, <vector>, <string>, <map>, etc.? What purpose do they serve?

Quote:

---

I need to use a same structure in two different files and in two independant classes

---

So use a real life example. What if you want to use the class "string" in two independent classes, how do you do that?

Code:

---

// File1.cpp
#include <string>

class C1
{ 
  std::string s;
};

---

Code:

---

// File2.cpp
#include <string>

class C2
{
  std::string s;
};

---

I just used string in two independent classes and in two different files.

Regards,

Paul McKenzie

Thankx Paul ..

Quote:

---

Originally Posted by Paul McKenzie

I just used string in two independent classes and in two different files.

---

Hi Paul,
I tried your method , but it did not work in my case, can you help me with this?thank you

Quote:

---

I want to use num[0]~num[9] in class CChartDlg
I tried CCentriodView getv;
but getv.num[0] is not the right num ,can anyone help me with this?

---

What the try does mean? You defined getv in the function? Of course it won't work, as you need to access already existing view object, but you create a new one.

So, to make the object be accessible in another object you need to pass the object address (pointer) to that other object. BTW, if I get this correct, you already should have the view pointer in the dialog as dialog parent. If so,

Code:

---

void CChartDlg::OnCreate()
{
    CTestView* pView = (CTestView*)GetParent();
  // I want to use num[0]~num[9] in this function.
    int num0 = pView->num[0];

}

---