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void CK nob::OnLButtonDown(UINT nFlags，CPoint)

{// TODO: Add your message handler code here and/or call default.

Monosodium glutamate;

* set capture(GetSafeHwnd())；

while(::GetMessage(& amp； msg，NULL，NULL，NULL))

{

CPoint ptTmp = (0，0)；

if(::GetCapture()！ = GetSafeHwnd())

Break;

else if(msg . message & lt； WM _ MOUSEFIRST | | msg.message & gtWM_MOUSELAST)

{//If the message has nothing to do with the mouse,

* translate message (& monosodium glutamate);

* dispatch message(& amp； Monosodium glutamate);

}

else if(msg . message = = WM _ MOUSEMOVE)

{//Press and move

pt tmp . x =(short)LOWORD(msg . lparam)；

int iChangeValue =(pt tmp . x-point . x)/4；

m _ ICU rvalue+= iChangeValue；

CPoint ptTmp = (0，0)；

pt tmp . x =(short)LOWORD(msg . lparam)；

pt tmp . y =(short)hi word(msg . lparam)；

SetValue(m _ ICU rvalue)；

CWnd::OnMouseMove(nFlags，point)；

}

else if(msg . message = = WM _ LBUTTONUP)

{//Press and release.

get parent()-& gt； SendMessage(WM _ KNOBVALUECHANGED，NULL，NULL)；

ReleaseCapture()。

Break;

}

}

CWnd::OnLButtonDown(nFlags，point)；

}