Question

我使用过CreateStatic＆amp; CreateView将“C（类名）视图”拆分为多个窗格（如（1x2），（3x3）），使用按钮控件选择行数和列数。

现在，当我点击1x1（这意味着我要删除任何窗格）时，ASSERT（n_Row＆gt; 1＆amp;＆amp; n_Col＆gt; 1）显然在CSplitterWnd :: CreateStatic内失败。

我如何处理“无窗格”情况？

这是DisplaySingleFrame（）函数（删除窗格）

CN00bSplitApp* pApp = (CN00bSplitApp*)AfxGetApp();
CView * pActiveView = NULL;

if(pActiveView == NULL)
{
if(m_pSplitter)
    pActiveView = (CView*)m_pSplitter->GetPane(0,0);
        else
    pActiveView = (CN00bSplitView *)GetActiveView();
}

m_iPrevColLayout = m_iRowLayout;
m_iPrevRowLayout = m_iColLayout;

m_iRowLayout = 0;
m_iColLayout = 0;

ShowWindow(SW_HIDE);

CRect rect(0,0,0,0);
pActiveView->GetClientRect(rect);
CDocument * pDoc= pActiveView->GetDocument();

pActiveView->DestroyWindow();

pActiveView = NULL;

if(m_pSplitter)
{
m_pSplitter->DestroyWindow();
delete m_pSplitter;
m_pSplitter = NULL;
}

CDocTemplate* pDocTemplate = pApp->m_pDocTemplate;

CCreateContext context;

context.m_pNewViewClass= RUNTIME_CLASS(CN00bSplitView);
context.m_pCurrentDoc=(CN00bSplitDoc*)pDocTemplate->CreateNewDocument();
context.m_pLastView=pActiveView;

CView* p = (CView*)CreateView(&context, AFX_IDW_PANE_FIRST);
SetActiveView(p);

p->OnInitialUpdate();

RecalcLayout();
ShowWindow(SW_SHOW);

这会在“context.m_pCurrentDoc =（CN00bSplitDoc *）pDocTemplate-＆gt; CreateNewDocument（）;”

中抛出未处理的异常

Answer 1

我没有在m_pDocTemplate=pDocTemplate的InitInstance中初始化C(classname)App。

解决问题。

MFC删除所有静态分割窗格（1x1视图）

1 个答案: