qq用户列表，点击变大的皱形及原理

QQ用户列表的那个点一下变大的实现。

不知道是不会搜还是真没有，google没啥资料 codeproject也没看到估计太简单了

注意点

1.window sytle

LBS_NOTIFY | LBS_OWNERDRAWVARIABLE

2.sting and setitemdata

id = m_listbox.AddString(L"3234234123");
m_listbox.SetItemData(id, (DWORD_PTR)&myCon[0]);

void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct)
{
// must be implemented
Contactors* con = (Contactors*)lpDrawItemStruct->itemData;

  CDCHandle dc = lpDrawItemStruct->hDC;
  TCHAR aa[100] = {0};
   wsprintf(aa,L"这里是状态%d这里是坐标%d-%d-%d-%d",lpDrawItemStruct->itemState, lpDrawItemStruct->rcItem.left, lpDrawItemStruct->rcItem.top, lpDrawItemStruct->rcItem.right, lpDrawItemStruct->rcItem.bottom);
  //if((lpDrawItemStruct->itemState&ODS_NOFOCUSRECT )==ODS_NOFOCUSRECT )
  //{
   dc.SetBkMode(TRANSPARENT);
   dc.FillRect(&lpDrawItemStruct->rcItem, CreateSolidBrush(RGB(100+lpDrawItemStruct->itemID*10,10+lpDrawItemStruct->itemID*70,40+lpDrawItemStruct->itemID*80)));
   dc.TextOut(lpDrawItemStruct->rcItem.left, lpDrawItemStruct->rcItem.top,aa);
  //}
}

(gif图像点击看效果)