/// <summary>
/// Sets the global menu status callback.
/// </summary>
/// <param name="func">
/// The new menu status button callback function. See
/// <see cref="MenuStatusCallback" />.
/// </param>
/// <remarks>
/// <para>
/// <b>glutMenuStatusFunc</b> sets the global menu status callback so a GLUT
/// program can determine when a menu is in use or not. When a menu status
/// callback is registered, it will be called with the value
/// <see cref="GLUT_MENU_IN_USE" /> for its <i>val</i> parameter when pop-up menus
/// are in use by the user; and the callback will be called with the value
/// <see cref="GLUT_MENU_NOT_IN_USE" /> for its <i>status</i> parameter when
/// pop-up menus are no longer in use. The <i>x</i> and <i>y</i> parameters
/// indicate the location in window coordinates of the button press that caused
/// the menu to go into use, or the location where the menu was released (may be
/// outside the window). The <i>func</i> parameter names the callback function.
/// Other callbacks continue to operate (except mouse motion callbacks) when
/// pop-up menus are in use so the menu status callback allows a program to
/// suspend animation or other tasks when menus are in use. The cascading and
/// unmapping of sub-menus from an initial pop-up menu does not generate menu
/// status callbacks. There is a single menu status callback for GLUT.
/// </para>
/// <para>
/// When the menu status callback is called, the current menu will be set to the
/// initial pop-up menu in both the <i>GLUT_MENU_IN_USE</i> and
/// <i>GLUT_MENU_NOT_IN_USE</i> cases. The current window will be set to the
/// window from which the initial menu was popped up from, also in both cases.
/// </para>
/// <para>
/// Passing <c>null</c> to <b>glutMenuStatusFunc</b> disables the generation of
/// the menu status callback.
/// </para>
/// <para>
/// <see cref="glutMenuStateFunc" /> is a deprecated version of the
/// <b>glutMenuStatusFunc</b> routine. The only difference is
/// <b>glutMenuStateFunc</b> callback prototype does not deliver the two
/// additional <i>x</i> and <i>y</i> coordinates.
/// </para>
/// </remarks>
/// <seealso cref="MenuStateCallback" />
/// <seealso cref="MenuStatusCallback" />
/// <seealso cref="glutMenuStateFunc" />
// GLUTAPI void APIENTRY glutMenuStatusFunc(void (GLUTCALLBACK *func)(int status, int x, int y));
public static void glutMenuStatusFunc([In] MenuStatusCallback func) {
menuStatusCallback = func;
__glutMenuStatusFunc(menuStatusCallback);
}
private static extern void __glutMenuStatusFunc(MenuStatusCallback func);
