大家好现在有一个问题想请教一下 谢谢各位了

[xxrl]

多文档结构
现在我再CMainFrame中向遍历打开的view ，但我双击一个数的条目时候 打开相应的view 如果这个view不存在 则新建一个，存在就激活

这么一个过程创建直接调用app中的相关函数创建即可
可是这个激活已经打开的 我不会 ，各位能教教我吗？
因为打开了很多的view 只有一个是在前端激活的，其他的在后面 怎么激活它呢？
谢谢各位

[oyljerry]

setactiveview

[xqk]

up

[oyljerry]

CView* pView;
POSITION pos = GetFirstViewPosition();

while(pos!=NULL)
{
pView = GetNextView(pos);
if(!pView->IsKindOf(pClass))
break;
}
遍历view

[koko1998]

mark

[chen18s]

SetAcitveView正解

[vcmute]

MDIActivate

[yuanchao111]

我的代码中正好有类似你所需要的，给你贴出来

void CMainFrame::OnSwitchView(UINT nCmdID)
{
if (nCmdID == m_nCurrentView)
return; // already selected

// Set the child window ID of the active view to AFX_IDW_PANE_FIRST.
// This is necessary so that CFrameWnd::RecalcLayout will allocate
// this "first pane" to that portion of the frame window's client
// area not allocated to control bars. Set the child ID of
// the previously active view to some other ID; we will use the
// command ID as the child ID.
CView* pOldActiveView = GetActiveView();
::SetWindowLong(pOldActiveView->m_hWnd, GWL_ID, m_nCurrentView);

CView* m_pNewView = NULL;
m_pNewView = (CView* )GetDlgItem(nCmdID);
if(!(m_pNewView != NULL && m_pNewView ->GetSafeHwnd() != NULL))
{
CRuntimeClass* pNewViewClass;
switch (nCmdID)
{
case ID_XXX_VIEW:
pNewViewClass = RUNTIME_CLASS(CXXXView);
break;
case ID_YYY_VIEW:
pNewViewClass = RUNTIME_CLASS(CYYYView);
break;

default:
ASSERT(0);
return;
}

// create the new view
CCreateContext context;
context.m_pNewViewClass = pNewViewClass;
context.m_pCurrentDoc = GetActiveDocument();
CView* pNewView = STATIC_DOWNCAST(CView, CreateView(&context));
if (pNewView != NULL)
{
pOldActiveView->ShowWindow(SW_HIDE);
// the new view is there, but invisible and not active...
pNewView->ShowWindow(SW_SHOW);
pNewView->OnInitialUpdate();
//pNewView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);
SetActiveView(pNewView);
RecalcLayout();
m_nCurrentView = nCmdID;
}
}
else
{
//AfxMessageBox("m_pPhotoListView != NULL");
m_pNewView ->ShowWindow(SW_SHOW);
m_pNewView ->EnableWindow(TRUE);
SetActiveView(m_pNewView );

pOldActiveView->ShowWindow(SW_HIDE);
pOldActiveView->EnableWindow(FALSE);

m_nCurrentView = nCmdID;
m_pNewView->SetDlgCtrlID(AFX_IDW_PANE_FIRST);
//m_pEmailView->Invalidate();
RecalcLayout();
}
}

[xxrl]

谢谢 yuanchao111(袁超)
回去我会好好研究一下的 ！