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覆巢之下焉有完卵。出来道上混,迟早是要还的。

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MFC由CView转化为CScrollView

2009-07-24 17:53:46| 分类： VC++ | 标签： |举报 |字号大中小订阅

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由于我们编程时，会时常用到滚动条，所以会用到CScrollView类，但开始创建工程时没有考虑这么多。下面就继承CView类改为继承CScollView类说一下具体过程：
1.找到要改的类，将H和CPP文件里的CView改为CScollView。直接用菜单下的replace

2.添加虚函数(查看一下你的视类有没有)OnInitialUpdate;
添加形如以下代码：
void CMimicsView::OnInitialUpdate()
{
    // TODO: Add your specialized code here and/or call the base class
    SetScrollSizes(MM_TEXT, GetDocument( )->GetDocSize( ));
    CScrollView::OnInitialUpdate();
}
SetScrollSizes这个函数可以去MSDN看一下具体用法,这里的第二个参数是一个CSize类型,需要自己在文档类里面定义。
如果想查看一下效果，可以用以下代码看看
void CMimicsView::OnInitialUpdate()
{
    // TODO: Add your specialized code here and/or call the base class
    SetScrollSizes(MM_TEXT, CSize(1000,1000));
    CScrollView::OnInitialUpdate();
}

心得：其实这些都是一些简单的工作，只要自己用心还是很快能搞定的

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