求教啊为什么会报错呢
这个是从CDialog派生的类
CCheck::CCheck(CWnd* pParent /*=NULL*/)
: CDialog(CCheck::IDD, pParent)
{
//{{AFX_DATA_INIT(CCheck)
// NOTE: the ClassWizard will add member initialization here
//}}AFX_DATA_INIT
}
void CMyView::OnTeaEdit()
{
// TODO: Add your command handler code here
CCheck Check(Null);//在这里定义一个CCheck对象
Check.DoModal();
}
error C2065: 'Null' : undeclared identifier