CPA

void CtennisView::OnTimer(UINT nIDEvent)
{
    CRect rect;
    if( m_ball.GetRect(&rect) ) // Get current position
        InvalidateRect(&rect);
    m_ball.UpdatePos(); // Update position
    if( m_ball.GetRect(&rect) ) // Get current position
        InvalidateRect(&rect);
    UpdateWindow(); // Send WM_PAINT message now instead of latter
}
/*
Note: Create a ball class to hold the ball bitmap, positon and provide drawing method. If you do all your drawing in the in the OnDraw function you will less problems. If you experience flikering, change the OnEraseBkgnd to just return TRUE.
*/

<small>//------global data------</small><br />
HANDLE hthread; <small>// this is thread handle</small><br />
int idThread;   <small>// this is threaed id</small><br />
//---The thread function------------------------<br />
DWORD WINAPI UpdateThread(LPVOID lpParameter)<br />
{<br />
while(1) <small>//keep looping</small><br />
{<br />
<small>//WRITE YOUR UPDATING CODE HERE THAT WILL CONTINIOUSLY UPDATE THE VALUES<br />
//Make the values to be updated GLOBAL as there is no way to return values from a thread.</small><br />
}<br />
}

OnUpdateButtonClick()<br />
{<br />
<small>//when update button is clicked, start the update thread should be started</small><br />
hThread=CreateThread(NULL,0,UpdateThread,0,0,&idThread);<br />
<small>//dont bother about the parameters that are NULL or 0, u ll never need them</small><br />
}

OnStopButtonClick()<br />
{<br />
 <small>//We sud stop the thread now (i.e. stop the updating loop inside the thread)</small><br />
 TerminateThread(hThread,0)<br />
 <small>//WRITE HERE "UR CODE TO WRITE UPDATED VALUES INTO THE DATABASE"</small>}<br />
}

CWinApp::OnIdle()<br />
{<br />
 if(glo==0)<br />
 ; //do nothing<br />
 else if(glo==1)<br />
 {<br />
 //write all ur updating stuff here<br />
 }<br />
}

OnUpdateClick()<br />
{<br />
 glo=1;<br />
}

OnStopClick()<br />
{<br />
 glo=0;<br />
<br />
//NOW WRITE UPDATED VALUES TO DATABASE<br />
}

<br />
//global variables<br />
int check_exit=0;<br />
<br />
//Update button function<br />
void CUpdateView::OnUpdatedb() <br />
{<br />
	// TODO: Add your control notification handler code here<br />
<br />
	//get a pointer to the recordset<br />
		CUpdateDoc* pDoc = GetDocument();<br />
		UseRecordset* pUseRecordset	= &pDoc->m_UseRecordset;<br />
	int x = 5;<br />
	do<br />
	{<br />
		pUseRecordset->Edit();<br />
<br />
		//UpdateData(true);	<br />
		pUseRecordset->m_propatime = m_propagation*x;<br />
	<br />
		pUseRecordset->Update();<br />
<br />
		if (check_exit = 0)<br />
			check_exit=1;	<br />
	}while(check_exit!=1);<br />
<br />
	//::MessageBox(0, "Updated!", "Information",0);<br />
}<br />
<br />
//Exit button function<br />
void CUpdateView::OnExit() <br />
{<br />
	check_exit = 0;<br />
}

int loop=1; //1 means keep looping 0 means stop and end the thread
DWORD WINAPI UpdateThread(LPVOID lpParameter)
{
//get a pointer to the recordset
CUpdateDoc* pDoc = GetDocument();
UseRecordset* pUseRecordset = &pDoc->m_UseRecordset;
int x = 5;

while(loop==1)
{
pUseRecordset->Edit();

//UpdateData(true); 
pUseRecordset->m_propatime = m_propagation*x;

pUseRecordset->Update();
}
}

//------global data------
HANDLE hthread; // this is thread handle
int idThread; // this is threaed id

//Update button function
void CUpdateView::OnUpdatedb() 
{
// TODO: Add your control notification handler code here

// in place of "UpdateThread" use whatever you have named the thread
hThread=CreateThread(NULL,0,UpdateThread,0,0,&idThread); 
}

//Exit button function
void CUpdateView::OnExit() 
{
loop = 0;
}