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在主对话框调用子对话框设定参数值，使用theApp变量实现。

子对话框各参数变量

   CString    m_strTypeName;    CString    m_strBrand;    CString    m_strRemark;
    double    m_edit_min;    double    m_edit_max;
    double    m_edit_time2;
    double    m_edit_time1;
    double    m_edit_time3;
    DWORD    m_edit_time4;

参考MFC工控项目实例二十七添加产品参数

1、在SEAL_PRESSURE.h中添加代码

class CProductPara
{
public:union{struct{char	m_strTypeName[24];char	m_strBrand[24];			char	m_strRemark[64];double	m_edit_min;double	m_edit_max;double	m_edit_time1;double	m_edit_time2;double	m_edit_time3;double	m_edit_time4;};char len[1024];};
};class CSEAL_PRESSUREApp : public CWinApp
{
public:CSEAL_PRESSUREApp();CString   m_strTypeName;CString   m_strBrand;	CString   m_strRemark;double	m_edit_min;double	m_edit_max;double	m_edit_time1;double	m_edit_time2;double	m_edit_time3;double	m_edit_time4;
...
}

2、在SEAL_PRESSURE.h中添加代码

void CSEAL_PRESSUREDlg::OnTypeChange(UINT nID)
{theApp.m_nProductSel = nID - ID_DEF_PRODUCT+1;CWinApp* pApp = AfxGetApp();int i=pApp->WriteProfileInt("参数","nProductSel1",theApp.m_nProductSel);CString str = theApp.m_allPara[theApp.m_nProductSel].m_strTypeName;theApp.typ_name=theApp.m_DataPath+"\\"+str+"\\";CreateDirectory(theApp.typ_name,FALSE);theApp.m_strTypeName= theApp.m_allPara[theApp.m_nProductSel].m_strTypeName;theApp.m_strBrand= theApp.m_allPara[theApp.m_nProductSel].m_strBrand;theApp.m_strRemark= theApp.m_allPara[theApp.m_nProductSel].m_strRemark;theApp.m_edit_min= theApp.m_allPara[theApp.m_nProductSel].m_edit_min;theApp.m_edit_max= theApp.m_allPara[theApp.m_nProductSel].m_edit_max;theApp.m_edit_time1= theApp.m_allPara[theApp.m_nProductSel].m_edit_time1;theApp.m_edit_time2= theApp.m_allPara[theApp.m_nProductSel].m_edit_time2;theApp.m_edit_time1= theApp.m_allPara[theApp.m_nProductSel].m_edit_time1;theApp.m_edit_time2= theApp.m_allPara[theApp.m_nProductSel].m_edit_time2;theApp.m_edit_time3= theApp.m_allPara[theApp.m_nProductSel].m_edit_time3;theApp.m_edit_time4= theApp.m_allPara[theApp.m_nProductSel].m_edit_time4;SetDlgItemText(IDC_STATIC_TYPNAME,theApp.m_strTypeName);CString str1,str2;str1.Format("%3.2f",theApp.m_edit_min);str2.Format("%3.2f",theApp.m_edit_max);SetDlgItemText(IDC_STATIC100,str1);SetDlgItemText(IDC_STATIC102,str2);if (i!=0){m_TES_START.EnableWindow (1);}}

运行程序