CSliderCtrl 内存泄露

Detected memory leaks!
Dumping objects ->
{430} client block at 0x02C827C0, subtype c0, 84 bytes long.
a CSliderCtrl object at $02C827C0, 84 bytes long
Object dump complete.

CSliderCtrl 成员变量出现内存泄露现象，这是在类的析构函数中没有释放该变量所占的内存，解决方法如下：

CMyDlg::~CMyDlg(){ if (m_densityCtrl) {  delete m_densityCtrl;  m_densityCtrl = NULL; }}