* How to hide the menubar

* This code sample shows how to hide the menubar. It isn't something that you

* should really be doing (see the Apple Q&A stack for more), and the extra

* space might not 'work' ok (ie, it might not receive mouse-clicks and such), but

* it will enable you to draw on (or just obscure) the menu bar. Also, you should

* avoid calling ExitToShell without first calling ShowMenuBar, because you'll

* find that you have no menu bar. This code hasn't been tested with multiple monitor

* environments.

// Assumes inclusion of

void Init(void);

void HideMenuBar(void);

void ShowMenuBar(void);

void

Init(void)

{

InitGraf(&thePort);

InitFonts();

InitWindows();

TEInit();

InitDialogs(nil);

InitCursor();

}

short oldMBarHeight;

RgnHandle mBarRgn;

void HideMenuBar()

{

Rect mBarRect;

oldMBarHeight = GetMBarHeight();

MBarHeight = 0; /* make the Menu Bar's height zero */

SetRect(&mBarRect, screenBits.bounds.left, screenBits.bounds.top,

screenBits.bounds.right, screenBits.bounds.top + oldMBarHeight);

mBarRgn = NewRgn();

RectRgn(mBarRgn, &mBarRect);

UnionRgn(GrayRgn, mBarRgn, GrayRgn);/* tell the desktop it covers the menu

* bar

PaintOne(nil, mBarRgn); /* redraw desktop */

}

void ShowMenuBar()

{

MBarHeight = oldMBarHeight; /* make the menu bar's height normal */

DiffRgn(GrayRgn, mBarRgn, GrayRgn); /* remove the menu bar from the

* desktop

DisposeRgn(mBarRgn);

}

main()

{

Init();

HideMenuBar();

while (!Button())

;

ShowMenuBar();

}