MFC Tab 标签控件

▲ 提升类

▲ 两个 dlg 类，把边框去掉，把样式改成 Child

主 Dlg 头文件三个成员变量：

private:
	CTabSheet m_tabCtrl;
	MyDlg1 dlg1;
	MyDlg2 dlg2;

BOOL CMy02_TabCtrlDlg::OnInitDialog() 中：

	//给tab控件添加对话框
	//对话框设置为子对话框，默认是单独对话框
	m_tabCtrl.AddPage(TEXT("设置"), &dlg1, IDD_DIALOG1);
	m_tabCtrl.AddPage(TEXT("测试"), &dlg2, IDD_DIALOG2);

	//显示tab控件
	m_tabCtrl.Show();

TabSheet.h

#if !defined(AFX_TABSHEET_H__42EE262D_D15F_46D5_8F26_28FD049E99F4__INCLUDED_)
#define AFX_TABSHEET_H__42EE262D_D15F_46D5_8F26_28FD049E99F4__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// TabSheet.h : header file
//

/////////////////////////////////////////////////////////////////////////////
// CTabSheet window
#define MAXPAGE 16

class CTabSheet : public CTabCtrl
{
	// Construction
public:
	CTabSheet();
	
	// Attributes
public:
	
	// Operations
public:
	
	// Overrides
	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CTabSheet)
	//}}AFX_VIRTUAL
	
	// Implementation
public:
	int GetCurSel();
	int SetCurSel(int nItem);
	void Show();
	void SetRect();
	BOOL AddPage(LPCTSTR title, CDialog *pDialog, UINT ID);
	virtual ~CTabSheet();
	
	// Generated message map functions
protected:
	LPCTSTR m_Title[MAXPAGE];
	UINT m_IDD[MAXPAGE];
	CDialog* m_pPages[MAXPAGE];
	int m_nNumOfPages;
	int m_nCurrentPage;
	//{{AFX_MSG(CTabSheet)
	afx_msg void OnLButtonDown(UINT nFlags, CPoint point);
	afx_msg void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar);
	//}}AFX_MSG
	
	DECLARE_MESSAGE_MAP()
};

/////////////////////////////////////////////////////////////////////////////

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_TABSHEET_H__42EE262D_D15F_46D5_8F26_28FD049E99F4__INCLUDED_)

TabSheet.cpp

// TabSheet.cpp : implementation file
//

#include "stdafx.h"
//#include "Property5.h"
#include "TabSheet.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CTabSheet

CTabSheet::CTabSheet()
{
	m_nNumOfPages = 0;
	m_nCurrentPage = 0;
}

CTabSheet::~CTabSheet()
{
}


BEGIN_MESSAGE_MAP(CTabSheet, CTabCtrl)
	//{{AFX_MSG_MAP(CTabSheet)
	ON_WM_LBUTTONDOWN()
	ON_WM_HSCROLL()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTabSheet message handlers

BOOL CTabSheet::AddPage(LPCTSTR title, CDialog *pDialog,UINT ID)
{
	if( MAXPAGE == m_nNumOfPages )
		return FALSE;

	m_nNumOfPages++;

	m_pPages[m_nNumOfPages-1] = pDialog;
	m_IDD[m_nNumOfPages-1] = ID;
	m_Title[m_nNumOfPages-1] = title;

	return TRUE;
}

void CTabSheet::SetRect()
{
	CRect tabRect, itemRect;
	int nX, nY, nXc, nYc;

	GetClientRect(&tabRect);
	GetItemRect(0, &itemRect);

	nX=itemRect.left;
	nY=itemRect.bottom+1;
	nXc=tabRect.right-itemRect.left-2;
	nYc=tabRect.bottom-nY-2;

	m_pPages[0]->SetWindowPos(&wndTop, nX, nY, nXc, nYc, SWP_SHOWWINDOW);
	for( int nCount=1; nCount < m_nNumOfPages; nCount++ )
		m_pPages[nCount]->SetWindowPos(&wndTop, nX, nY, nXc, nYc, SWP_HIDEWINDOW);

}

void CTabSheet::Show()
{
	int i = 0;
	for( i=0; i < m_nNumOfPages; i++ )
	{
		m_pPages[i]->Create( m_IDD[i], this );
		if (AfxGetMainWnd())
			InsertItem( i, m_Title[i] );
		else
			return;
	}

	m_pPages[0]->ShowWindow(SW_SHOW);
	for( i=1; i < m_nNumOfPages; i++)
		m_pPages[i]->ShowWindow(SW_HIDE);

	SetRect();

}

void CTabSheet::OnLButtonDown(UINT nFlags, CPoint point) 
{
	CTabCtrl::OnLButtonDown(nFlags, point);

	if(m_nCurrentPage != GetCurFocus())
	{
		m_pPages[m_nCurrentPage]->ShowWindow(SW_HIDE);
		m_nCurrentPage=GetCurFocus();
		m_pPages[m_nCurrentPage]->ShowWindow(SW_SHOW);
//		m_pPages[m_nCurrentPage]->SetFocus();

		//AfxMessageBox("选中"); wbm test
	}
	
}

int CTabSheet::SetCurSel(int nItem)
{
	if( nItem < 0 || nItem >= m_nNumOfPages)
		return -1;

	int ret = m_nCurrentPage;

	if(m_nCurrentPage != nItem )
	{
		m_pPages[m_nCurrentPage]->ShowWindow(SW_HIDE);
		m_nCurrentPage = nItem;
		m_pPages[m_nCurrentPage]->ShowWindow(SW_SHOW);
//		m_pPages[m_nCurrentPage]->SetFocus();
		CTabCtrl::SetCurSel(nItem);
	}

	return ret;
}

int CTabSheet::GetCurSel()
{
	return CTabCtrl::GetCurSel();
}

void CTabSheet::OnHScroll(UINT nSBCode, UINT nPos, CScrollBar* pScrollBar) 
{
	// TODO: Add your message handler code here and/or call default
	
	CTabCtrl::OnHScroll(nSBCode, nPos, pScrollBar);
}

参考：
https://www.bilibili.com/video/BV1jb411M78M?p=73