CReBar导致的debug assertion failed错误！

[奋起无迹]

CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)中

if (!m_wndReBar.Create(this) ||
		!m_wndReBar.AddBar(&m_wndMenuBar) ||
		!m_wndReBar.AddBar(&m_wndToolBar, NULL, NULL,
				RBBS_GRIPPERALWAYS | RBBS_FIXEDBMP | RBBS_BREAK) ||
		!m_wndReBar.AddBar(&m_wndAnimate, NULL, NULL, RBBS_FIXEDSIZE | RBBS_FIXEDBMP) ||
		!m_wndReBar.AddBar(&m_wndAddress, strAddressLabel, NULL,
				RBBS_GRIPPERALWAYS | RBBS_FIXEDBMP | RBBS_BREAK) ||
		!m_wndReBar.AddBar(&m_wndLinksBar, strLinksLabel, NULL,
				RBBS_GRIPPERALWAYS | RBBS_FIXEDBMP | RBBS_BREAK))
	{
		TRACE0("Failed to create rebar\n");
		return -1;      // fail to create
	}

void CBCGToolBar::AdjustLayout ()
{
	if (GetSafeHwnd () == NULL)
	{
		return;
	}

	CReBar* pBar = DYNAMIC_DOWNCAST (CReBar, GetParent());
	if (pBar != NULL)
	{
		CReBarCtrl& wndReBar = pBar->GetReBarCtrl ();
		UINT uiReBarsCount = wndReBar.GetBandCount ();

		REBARBANDINFO bandInfo;
		bandInfo.cbSize = sizeof (bandInfo);
		bandInfo.fMask = (RBBIM_CHILDSIZE | RBBIM_CHILD);
		UINT uiBand;
		for ( uiBand = 0; uiBand < uiReBarsCount; uiBand ++)
		{
			wndReBar.GetBandInfo (uiBand, &bandInfo);
			if (bandInfo.hwndChild == GetSafeHwnd ())
			{
				break;   //循环中找不到this对象的m_hWnd，无法跳出循环
			}
		}

		if (uiBand >= uiReBarsCount)
		
		{
			ASSERT (FALSE);    //这儿出错
		}
		else
		{
			CSize sizeMin = CalcSize (FALSE);

			CRect rect; rect.SetRectEmpty();
			CalcInsideRect (rect, TRUE);
			sizeMin.cy -= rect.Height();
			sizeMin.cx -= rect.Width();

			CSize size = CControlBar::CalcFixedLayout (FALSE, TRUE);
			sizeMin.cx = max(sizeMin.cx, size.cx);
			sizeMin.cy = max(sizeMin.cy, size.cy);

			bandInfo.cxMinChild = sizeMin.cx;
			bandInfo.cyMinChild = sizeMin.cy;

			wndReBar.SetBandInfo (uiBand, &bandInfo);
			wndReBar.MinimizeBand (uiBand);
		}
	}
	else
	{
		CFrameWnd* pParent = GetParentFrame ();
		if (pParent != NULL && pParent->GetSafeHwnd () != NULL)
		{
			pParent->RecalcLayout ();
		}
	}

	AdjustLocations ();
	UpdateWindow ();
	Invalidate ();
}

按理说不应该出现这样的错误，弄了半天也没找到原因所在。。求人指点！

[奋起无迹]

明明已经 bandInfo.fMask = RBBIM_CHILDSIZE | RBBIM_CHILD;
为什么 .hwndChild 还是unused?

[奋起无迹]

引用 1 楼 shao99 的回复:

uiBand ，uiReBarsCount 两个变量相等的吧，满足条件啊，当然ASSERT

应该在循环中找到相等值，跳出循环的。。

[shao99]

uiBand ，uiReBarsCount 两个变量相等的吧，满足条件啊，当然ASSERT

[奋起无迹]

终于找到了解决的办法。 跟踪AddBar函数，再里面发现它是把bandInfo.cbSize 设置成80的，这是旧版本的大小。 而bandInfo.cbSize = sizeof (bandInfo)，会把cbSize 设置成100，在这儿也设置成80， 就能跳出循环了。