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Hi, I'm new with visual studio mfc c++, I want to create a combo box. I wrote:
CString str;
	for (int i = 0; i < 20; i++)
	{
		str.Format(_T("item string %d"), i);
		combo.AddString(str);
	}


and then:

combo.GetLBText(combo.GetCurSel(), m_strTextCtrl);
	UpdateData(FALSE);// TODO: Add your control notification handler code here


but I don't know I must iniziatialize m_strTextCtrl

What I have tried:

I don't know how must initialize m_strTextCtrl
Posted
Updated 16-Sep-19 2:46am

1 solution

The destination variable should be a pointer to (wide) character buffer, or a reference to a CString object, as described in CComboBox::GetLBText | Microsoft Docs[^]. If this code is part of a dialog (and the UpdateData call suggests that it is), then the m_ prefix suggests that it should be a class variable, generated by the Class Wizard.
   

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