void Ctrl::Create0(Ctrl *owner, bool redirect, bool savebits)
{
...
	Window dad;
	if(IsPopUp())
	{
		dad = (owner->top)->window;
	}
	else
		dad = RootWindow(Xdisplay, Xscreenno);
	
	Window w = XCreateWindow(Xdisplay, dad,
	                         r.left, r.top, r.Width(), r.Height(),
	                         0, CopyFromParent, InputOutput, CopyFromParent,
	                         CWBitGravity|CWSaveUnder|CWOverrideRedirect|
	                         (IsCompositedGui() ? CWBackPixel : CWBackPixmap),
	                         &swa);
	if(!w) XError("XCreateWindow failed !");
...

void MenuBar::PopUp(Ctrl *owner, Point p, Size rsz)
{
	bool szcx = true;
	bool szcy = true;
	bool szx = false;
	bool szy = false;
	if(parentmenu) {
		if(parentmenu->IsChild())
			szcx = false;
		else
			szcy = false;
		WhenHelp = parentmenu->WhenHelp;
	}
	Rect r = GetWorkArea(p);