public static extern int EnumChildWindows(
IntPtr hWndParent, // handle to parent window
EnumChildProc lpEnumFunc, // callback function
ref RECT lParam // application-defined value
);
public static extern int GetWindowRect(
IntPtr hWnd, // handle to window
ref RECT lpRect // window coordinates
);
public static extern int DrawAnimatedRects(
IntPtr hwnd, // handle to clipping window
int idAni, // type of animation
ref RECT lprcFrom, // rectangle coordinates (minimized)
ref RECT lprcTo // rectangle coordinates (restored)
);
