MFC SDI CDocument我如何进入视图

问题描述

我正在编写一种Explorer风格的MFC SDI应用程序，因此左侧具有树视图，称为CLeftView.我正在尝试将文件打开到另一个视图(称为CMyAppView).我可以按如下所示进行操作，但是请确保必须有更好的方法，因为我必须两次调用GetNextView，并且第一次尝试获取树状视图，而我不需要这样做.

Hi,
I am writing an MFC SDI Application which is explorer style, so has a tree-view on the left and is called CLeftView. I am trying to open a file into the other view (called CMyAppView). I can do it as shown below but am sure there must be a better way as I have to call GetNextView twice, and the first time it is attempting to get the tree-view, which i don''t need to do.

BOOL CMyAppDoc::OnOpenDocument(LPCTSTR lpszPathName)
{
    ...........................
    POSITION posView = GetFirstViewPosition();
    //NOW NEED TO UPDATE VIEW
    // this is getting the CLeftView - I don't want this one
    ((CRichEditView*)GetNextView( posView ));//->SetWindowText(lpszDisplay); 

    // this is getting the CMyAppView
    ((CRichEditView*)GetNextView( posView ))->SetWindowText(lpszDisplay);
}

我应该如何从我的CDocument类访问主视图?

非常感谢！

How should I access the main view from my CDocument class?

many thanks!

推荐答案

CMDIFrameWnd *pFrame =
             (CMDIFrameWnd*)AfxGetApp()->m_pMainWnd;

// Get the active MDI child window.
CMDIChildWnd *pChild =
             (CMDIChildWnd *) pFrame->GetActiveFrame();

// or CMDIChildWnd *pChild = pFrame->MDIGetActive();

// Get the active view attached to the active MDI child
// window.
CMyView *pView = (CMyView *) pChild->GetActiveView();

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