typedef struct dc
{
  HWND hWnd;       /* the window that this DC is associated with */
  HBRUSH attr;     /* the window colors */
  HPEN hPen;       /* pen to draw lines with */
  HBRUSH hBrush;   /* brush to draw with */
  RECT rClipping;  /* the window clipping region */
} DC, *PDC, *HDC, *_HDC;