CComboBox :: GetLBText返回垃圾

Question

我正在填充一个组合框:

    while((pHPSet = pHPTable->GetNext()) != NULL)
    {       
      CString str = pHPSet->GetName();
          // I am normally using str but to proove that this is 
          // not the problem I am using "a"
      m_comboBaseHP.AddString(_T("a"));
    }

现在我正在尝试阅读组合框:

if(m_comboBaseHP.GetCount() > 0)
{
    CString csHPName = _T("");
    m_comboBaseHP.GetLBText(0, csHPName);
    // This is the ms way but ReleaseBuffer causes a crash
    //CString str = _T("");
    //int n = m_comboBaseHP.GetLBTextLen( 0 );
    //m_comboBaseHP.GetLBText( 0, str.GetBuffer(n) );
    //str.ReleaseBuffer();

    // Do whatever with csHPName
}

问题是csHPName在Debugger中显示了一些中文符号.我假设这是内存垃圾.这发生在同一个方法中.这种情况发生在预抽.发布同样的问题.这发生在Debug和Release中.我不明白这是怎么发生的,因为我实际上并没有使用指针.

Answer 1

显然,有必要将组合框的属性Has Strings设置为True.