Multithreading in MFC MDI

Hi,

I am trying to access globally variables declared in MainFrame of my solution from a thread that starts in my CMyView.cpp. How can I access these parameters without the CMainFrame * _MainFrame; in my structure THREADVIEW in CMyView.h, as below? Any ideas?

typedef struct THREADVIEW{
    * _this;

   //CMainFrame * _MainFrame; /* I cannot have this here */
 
} THREADVIEW;

Many thanks,

Yoldas


addition by the OP:
Hi,
First of all many thanks for your immediate comments. Here are the things in more detail.

///////////////In my view.cpp:
void CView::OnSprint()
{
	CMainFrame *pFrame = (CMainFrame*) AfxGetMainWnd();		
.
.
. 	/* kick off thread */
THREADVIEW *_pview = new THREADVIEW;
_pview->_this = this;
AfxBeginThread(ChangeColorThread, _pview);

}
UINT CView::ChangeColorThread(LPVOID param)
{
	THREADVIEW * thd = (THREADVIEW*)param;
	thd->_this->StateOnThread();

	AfxEndThread(1, FALSE); 

	return 1;
}

void CView:: StateOnThread ()
{
	CMainFrame *pFrame = (CMainFrame*) AfxGetMainWnd();	
	int a = pFrame->AA;
	/* I want to return AA from main frame but I cannot because I cannot declare CMainFrame * pFrame; in my THREADVIEW */
}

///////////// in my view.h

public:

	typedef struct THREADVIEW{
		CView * _this;
		// cannot have CMainFrame * pFrame;
	} THREADVIEW;


	void StateOnThread();

	static UINT ChangeColorThread(LPVOID param);


////////////my mainframe has my in AA:

class CMainFrame : public CMDIFrameWnd
{
	DECLARE_DYNAMIC(CMainFrame)
public:
int AA;
}

which I am trying to access. My thread kicks off from toolbar button after the child frame is displayed but I do not see why this has anything to do with why I cannot access Cmainframe parameters.

I greatly appreciate your input.

Regards,

Yoldas

Tags: C++, MFC, Multi-threading, MDI