MDI和视图更改检测 [英] MDI and view change detection

问题描述

Any1知道如何在MDI应用程序中检测文档/视图更改.我有MDI应用程序，该应用程序具有几种diff类型的文档/视图，每种类型都具有diff视图功能.我需要检测视图何时更改(用户可以通过MDI视图选项卡ctrl选择另一个)，以便可以将适当的命令发送到连接的单独设备(某些用于停用的视图，另一种用于激活的视图).

谢谢
Sasa

Hi,

Any1 know how to detect document/view change in MDI application. I have MDI app that have several diff types of document/views, each with diff view capabilities. I need to detect when view changes (user select another via MDI view tab ctrl) so I can send appropriate commands to separate devices attached (some for deactivated view, another for activated view).

Thanks
Sasa

推荐答案

我发现并使用的一种解决方案是重写ChildFrame的OnMDIActivate ...


void CChildFrame :: OnMDIActivate(BOOL bActivate，CWnd * pActivateWnd，CWnd * pDeactivateWnd)
{
CMDIChildWndEx :: OnMDIActivate(bActivate，pActivateWnd，pDeactivateWnd);

CWnd * pWnd = GetDlgItem(AFX_IDW_PANE_FIRST);
if(pWnd-> IsKindOf(RUNTIME_CLASS(CNeedeViewType)))
{
if(！bActivate)
{
//做某事
}
其他
{
//做某事
}
}
}


如果您想更好/更精明，请提出建议...

Hi,

one solution I found and using is overriding OnMDIActivate of ChildFrame...


void CChildFrame::OnMDIActivate(BOOL bActivate, CWnd* pActivateWnd, CWnd* pDeactivateWnd)
{
CMDIChildWndEx::OnMDIActivate(bActivate, pActivateWnd, pDeactivateWnd);

CWnd* pWnd = GetDlgItem(AFX_IDW_PANE_FIRST);
if( pWnd->IsKindOf( RUNTIME_CLASS(CNeedeViewType) ) )
{
if( !bActivate )
{
// Do something
}
else
{
// do something
}
}
}


If you know for better/nicer, please advice...

您好，

我发现并使用的一种解决方案是重写ChildFrame的OnMDIActivate ...


void CChildFrame :: OnMDIActivate(BOOL bActivate，CWnd * pActivateWnd，CWnd * pDeactivateWnd)
{
CMDIChildWndEx :: OnMDIActivate(bActivate，pActivateWnd，pDeactivateWnd);

CWnd * pWnd = GetDlgItem(AFX_IDW_PANE_FIRST);
if(pWnd-> IsKindOf(RUNTIME_CLASS(CNeedeViewType)))
{
if(！bActivate)
{
//做某事
}
其他
{
//做某事
}
}
}

Hi,

one solution I found and using is overriding OnMDIActivate of ChildFrame...


void CChildFrame::OnMDIActivate(BOOL bActivate, CWnd* pActivateWnd, CWnd* pDeactivateWnd)
{
CMDIChildWndEx::OnMDIActivate(bActivate, pActivateWnd, pDeactivateWnd);

CWnd* pWnd = GetDlgItem(AFX_IDW_PANE_FIRST);
if( pWnd->IsKindOf( RUNTIME_CLASS(CNeedeViewType) ) )
{
if( !bActivate )
{
// Do something
}
else
{
// do something
}
}
}

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