combodlg.cpp

这个是我们学校用的VC++教案

// ComboDlg.cpp : implementation file
//

#include "stdafx.h"
#include "ExmpCombo.h"
#include "ComboDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CComboDlg dialog


CComboDlg::CComboDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CComboDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CComboDlg)
	m_strCtrlName = _T("");
	//}}AFX_DATA_INIT
}


void CComboDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CComboDlg)
	DDX_Control(pDX, IDC_COMBOCTRLNAME, m_ComboBx);
	DDX_CBString(pDX, IDC_COMBOCTRLNAME, m_strCtrlName);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CComboDlg, CDialog)
	//{{AFX_MSG_MAP(CComboDlg)
	ON_CBN_SELCHANGE(IDC_COMBOCTRLNAME, OnSelchangeComboctrlname)
	ON_BN_CLICKED(IDC_BUTNAPPLY, OnButnApply)
	ON_WM_DESTROY()
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CComboDlg message handlers

void CComboDlg::OnSelchangeComboctrlname() 
{
	// TODO: Add your control notification handler code here
	if(pWndCtrl!=NULL)
	{
		delete  pWndCtrl;    // 删除上一次生成的控件对象
		pWndCtrl=NULL;
	}
	int  nChoice=m_ComboBx.GetCurSel();     // 获得当前选项的索引
	switch(nChoice)     // 根据选项生成不同类型的控件对象
	{
	case  0:
		pWndCtrl=new CStatic;
		((CStatic*)pWndCtrl)->Create(_T("Static Text"),WS_VISIBLE,CRect(180,40,300,70),this,1);
		break;
	case  1:
		pWndCtrl=new CEdit;
		((CEdit*)pWndCtrl)->Create(WS_VISIBLE|WS_BORDER,CRect(180,40,300,70),this,2);
		break;
	case  2:
		pWndCtrl=new CButton;
		((CButton*)pWndCtrl)->Create(_T("Group Box"),WS_VISIBLE|BS_GROUPBOX,CRect(180,40,300,100),this,3);
		break;
	case  3:
		pWndCtrl=new CButton;
		((CButton*)pWndCtrl)->Create(_T("Button"),WS_VISIBLE|WS_DISABLED|BS_PUSHBUTTON,CRect(180,40,300,70),this,4);
		break;
	case  4:
		pWndCtrl=new CButton;
		((CButton*)pWndCtrl)->Create(_T("Check Box"),WS_VISIBLE|BS_CHECKBOX,CRect(180,40,300,70),this,5);
		break;
	case  5:
		pWndCtrl=new CButton;
		((CButton*)pWndCtrl)->Create(_T("Radio Button"),WS_VISIBLE|BS_RADIOBUTTON,CRect(180,40,300,70),this,6);
		break;
	case  6:
		pWndCtrl=new CComboBox;
		((CComboBox*)pWndCtrl)->Create(WS_VISIBLE|CBS_DROPDOWN,CRect(180,40,300,100),this,7);
		break;
	case  7:
		pWndCtrl=new CListBox;
		((CListBox*)pWndCtrl)->Create(WS_VISIBLE|WS_BORDER,CRect(180,40,300,100),this,8);
		break;
	case  8:
		pWndCtrl=new CScrollBar;
		((CScrollBar*)pWndCtrl)->Create(WS_VISIBLE|SBS_VERT,CRect(250,40,280,100),this,9);
		break;
	default:      // 没有选择列表项
		pWndCtrl=new CStatic;
		((CStatic*)pWndCtrl)->Create(_T("No any Control"),WS_VISIBLE,CRect(180,40,300,70),this,1);
		break;
	}
}

void CComboDlg::OnButnApply() 
{
	// TODO: Add your control notification handler code here
	if(pWndCtrl!=NULL)
	{
		delete  pWndCtrl;     // 删除上一次生成的控件对象
		pWndCtrl=NULL;
	}
	UpdateData();
	pWndCtrl=new  CStatic;
	((CStatic*) pWndCtrl)->Create(_T("Static Text :\n"+m_strCtrlName),
			    WS_VISIBLE,CRect(180,40,300,80),this,10);   // 创建静态文本控件
}

BOOL CComboDlg::OnInitDialog()     // 初始化对话框时调用
{
	CDialog::OnInitDialog();
	// TODO: Add extra initialization here
	pWndCtrl=NULL;	   // 初始化控件对象指针
	return TRUE;  
}

void CComboDlg::OnDestroy()      // 关闭对话框时调用
{
	CDialog::OnDestroy();
	// TODO: Add your message handler code here
	if(pWndCtrl!=NULL)  delete  pWndCtrl;    // 删除最后生成的控件对象
}