本文介绍了知道CChildFrame何时与另一个切换的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

大家好。有没有人知道一条消息或一个处理程序告诉我何时用户在MFC MDI应用程序中切换了另一个CChildFrame?子框架是MDI选项卡:

 int CMainFrame :: OnCreate(LPCREATESTRUCT lpCreateStruct)
{
if(CMDIFrameWndEx :: OnCreate(lpCreateStruct)= = -1)
返回-1;

BOOL bNameValid;
//基于持久值设置可视化管理器和样式
OnApplicationLook(theApp.m_nAppLook);

EnableMDITabs(
TRUE,
TRUE,
CMFCBaseTabCtrl :: LOCATION_TOP,
TRUE,
CMFCTabCtrl :: STYLE_3D_SCROLLED,
FALSE,
FALSE);

CMFCTabCtrl& MFCTabCtrl = GetMDITabs();
MFCTabCtrl.SetTabBorderSize(0);
MFCTabCtrl.SetFlatFrame(TRUE);
MFCTabCtrl.EnableTabSwap(TRUE);
MFCTabCtrl.EnableTabDocumentsMenu(TRUE);
MFCTabCtrl.EnableAutoColor(TRUE);

if(!m_wndMenuBar.Create(this))
{
TRACE0("无法创建menubar \ n");
返回-1; //无法创建
}

当然,我尝试过这样的事情:

 void CChildFrame :: OnActivate(UINT nState,CWnd * pWndOther,BOOL bMinimized)
{
CMDIChildWndEx :: OnActivate(nState,pWndOther,bMinimized);

// TODO:在此处添加您的消息处理程序代码

TRACE(">>>>>>>>>> %d |%p \ n",nState,pWndOther);
}

 BEGIN_MESSAGE_MAP(CChildFrame,CMDIChildWndEx)
ON_WM_ACTIVATE()
END_MESSAGE_MAP()

但不会在子帧切换时触发......



此外,我已尝试过:

 void CJoint8View :: OnActivate(UINT nState,CWnd * pWndOther,BOOL bMimimized) 
{
CView :: OnActivate(nState,pWndOther,bMinimized);

// TODO:在此处添加您的消息处理程序代码

TRACE(" +>>>>>>>>>> ;%d |%p \ n",nState,pWndOther);
}




也没有解雇......为什么?



解决方案

Hi all of you. Does anyone know a message, or a handler that tell me when an user has switch a CChildFrame with another one, in an MFC MDI app ? The childframes are MDI tabs:

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CMDIFrameWndEx::OnCreate(lpCreateStruct) == -1)
		return -1;

	BOOL bNameValid;
	// set the visual manager and style based on persisted value
	OnApplicationLook(theApp.m_nAppLook);

	EnableMDITabs(
		TRUE, 
		TRUE, 
		CMFCBaseTabCtrl::LOCATION_TOP, 
		TRUE, 
		CMFCTabCtrl::STYLE_3D_SCROLLED, 
		FALSE, 
		FALSE);

	CMFCTabCtrl& MFCTabCtrl = GetMDITabs();
	MFCTabCtrl.SetTabBorderSize(0);
	MFCTabCtrl.SetFlatFrame(TRUE);
	MFCTabCtrl.EnableTabSwap(TRUE);
	MFCTabCtrl.EnableTabDocumentsMenu(TRUE);
	MFCTabCtrl.EnableAutoColor(TRUE);

	if (!m_wndMenuBar.Create(this))
	{
		TRACE0("Failed to create menubar\n");
		return -1;      // fail to create
	}

Of course, I have tried something like this:

void CChildFrame::OnActivate(UINT nState, CWnd* pWndOther, BOOL bMinimized)
{
	CMDIChildWndEx::OnActivate(nState, pWndOther, bMinimized);

	// TODO: Add your message handler code here

	TRACE(">>>>>>>>>>%d|%p\n", nState, pWndOther);
}

and

BEGIN_MESSAGE_MAP(CChildFrame, CMDIChildWndEx)
	ON_WM_ACTIVATE()
END_MESSAGE_MAP()

but it isn't fired on childframes switching ...

Also, I I have tried:

void CJoint8View::OnActivate(UINT nState, CWnd* pWndOther, BOOL bMinimized)
{
	CView::OnActivate(nState, pWndOther, bMinimized);

	// TODO: Add your message handler code here

	TRACE("+>>>>>>>>>>%d|%p\n", nState, pWndOther);
}


No fired also ... why ?

解决方案


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10-20 00:07