DUILIB 如何删除控件啊？

我使用Delete（）程序会崩溃。最后发现在

```for( int it1 = 0; it1 < m_items.GetSize(); it1++ ) {
CControlUI* pControl = static_cast(m_items[it1]);
if( !pControl->IsVisible() ) continue;
if( pControl->IsFloat() ) continue;
szControlAvailable = szAvailable;
RECT rcPadding = pControl->GetPadding();
szControlAvailable.cy -= rcPadding.top + rcPadding.bottom;
iControlMaxWidth = pControl->GetFixedWidth();
iControlMaxHeight = pControl->GetFixedHeight();
if (iControlMaxWidth <= 0) iControlMaxWidth = pControl->GetMaxWidth();
if (iControlMaxHeight <= 0) iControlMaxHeight = pControl->GetMaxHeight();
if (szControlAvailable.cx > iControlMaxWidth) szControlAvailable.cx = iControlMaxWidth;
if (szControlAvailable.cy > iControlMaxHeight) szControlAvailable.cy = iControlMaxHeight;
SIZE sz = { 0 };
if (pControl->GetFixedWidth() == 0) {
nAdjustables++;
sz.cy = pControl->GetFixedHeight();
}
else {
sz = pControl->EstimateSize(szControlAvailable);
if (sz.cx == 0) {
nAdjustables++;
}
else {
if (sz.cx < pControl->GetMinWidth()) sz.cx = pControl->GetMinWidth();
if (sz.cx > pControl->GetMaxWidth()) sz.cx = pControl->GetMaxWidth();
}
}

        cxFixed += sz.cx + pControl->GetPadding().left + pControl->GetPadding().right;

        sz.cy = MAX(sz.cy, 0);
        if( sz.cy < pControl->GetMinHeight() ) sz.cy = pControl->GetMinHeight();
        if( sz.cy > pControl->GetMaxHeight() ) sz.cy = pControl->GetMaxHeight();
        cyNeeded = MAX(cyNeeded, sz.cy + rcPadding.top + rcPadding.bottom);
        nEstimateNum++;
    }

for循环中的第1个判断崩溃，而第一句话pControl的结果全是乱码