关于Tree控件中加载位图的问题

Question

我想在Tree控件中加载位图，写了如下代码
m_theImageList.Create(IDB_BITMAP, 16, 1, RGB(0, 0, 0));
m_leftTree.SetImageList(&m_theImageList, TVSIL_NORMAL);
编译无错误，执行的时候出现“终止”，“重试”，“忽略”对话框的错误。

Answer 1

Create之后，还需要添加位图进ImageList
CImageList::Add

Answer 2

HICON hIcon[9];
hIcon[0]=AfxGetApp()->LoadIcon(IDI_ICON1);
hIcon[1]=AfxGetApp()->LoadIcon(IDI_ICON2);
hIcon[2]=AfxGetApp()->LoadIcon(IDI_ICON3);
hIcon[3]=AfxGetApp()->LoadIcon(IDI_ICON4);
hIcon[4]=AfxGetApp()->LoadIcon(IDI_ICON5);
hIcon[5]=AfxGetApp()->LoadIcon(IDI_ICON6);
hIcon[6]=AfxGetApp()->LoadIcon(IDI_ICON7);
hIcon[7]=AfxGetApp()->LoadIcon(IDI_ICON21);
hIcon[8]=AfxGetApp()->LoadIcon(IDI_ICON22);
if(m_imageList.m_hImageList!=NULL)
m_imageList.DeleteImageList();
m_imageList.Create(16,16,ILC_COLOR32,10,10);
m_imageList.SetBkColor(RGB(255,255,255));
m_imageList.Add(hIcon[0]);
m_imageList.Add(hIcon[1]);
m_imageList.Add(hIcon[2]);
m_imageList.Add(hIcon[3]);
m_imageList.Add(hIcon[4]);
m_imageList.Add(hIcon[5]);
m_imageList.Add(hIcon[6]);
m_imageList.Add(hIcon[7]);
m_imageList.Add(hIcon[8]); leftTree.SetImageList(&m_imageList,TVSIL_NORMAL);

Answer 3

这两行代码在哪执行的？要在m_leftTree与控件关联后才可以执行。

Answer 4

m_leftTree为NULL 或m_theImageList为NULL