WM_EMACS_PAINT   3281 src/w32fns.c         M (WM_EMACS_PAINT),
WM_EMACS_PAINT   4208 src/w32fns.c   	    my_post_msg (&wmsg, hwnd, WM_EMACS_PAINT, wParam, lParam);
WM_EMACS_PAINT   5046 src/w32term.c  	case WM_EMACS_PAINT: