C / C++ / MFC

case WM_PAINT: // custom control window paint handler
{
// some checks for need of repainting
Gdiplus::Graphics graphics(hdc);
Gdiplus::Bitmap *bmp = new Gdiplus::Bitmap(CtrlRect.right, CtrlRect.bottom);
Gdiplus::Graphics *temp = Gdiplus::Graphics::FromImage(bmp);
temp->SetSmoothingMode(Gdiplus::SmoothingMode::SmoothingModeAntiAlias);
// .. drawing goes here
// .. paint "ball" with new mouse coords
Gdiplus::CachedBitmap *cbmp = new Gdiplus::CachedBitmap(bmp, &graphics);
delete bmp;
delete temp;
graphics.DrawCachedBitmap(cbmp, 0, 0);
// done
}

*(BOOL*)&m_bool = FALSE;

class CBaseClass
{
 public:
  CBaseClass(){}
  virtual ~CBaseClass(){}

//members...
};

class CClass : public CBaseClass
{
 public:
  CClass(){}
  virtual ~CClass(){}

//members...
};