自绘ListCtrl -- 设置行高

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以下是通过重载DramItem()方法来实现自绘,

故需要设置ListCtrl控件属性"Owner Draw Fixed"为TRUE,"Owner Data"为FALSE(默认为FLASE);

1. 准备工作
(1).新建一个MFC类CMyListCtrl,其基类为CListCtrl，
(2).将ListCtrl控件属性"Owner Draw Fixed"设置为TRUE,"Owner Data"设置为FALSE(默认为FLASE);
(3).在ListCtrl控件所在对话框类声明中,修改控件变量声明为CMyListCtrl m_List;
(4).在MyListCtrl.h文件里,添加变量int m_nRowHeight;

2. 手动添加消息宏ON_WM_MEASUREITEM_REFLECT(),并添加下面的函数,实现修改行高

void CMyListCtrl::MeasureItem(LPMEASUREITEMSTRUCT lpMeasureItemStruct){if (m_nRowHeight>0){lpMeasureItemStruct->itemHeight = m_nRowHeight;}}

3. 手动添加消息宏ON_WM_MEASUREITEM,响应消息处理OnMeasureItem()

void CMyListCtrl::OnMeasureItem(int nIDCtl, LPMEASUREITEMSTRUCT lpMeasureItemStruct){// TODO: 在此添加消息处理程序代码和/或调用默认值CListCtrl::OnMeasureItem(nIDCtl, lpMeasureItemStruct);}

4. 添加成员变量int m_nRowHeight,并且添加对外修改接口

void CMyListCtrl::SetRowHeigt(int nHeight){m_nRowHeight = nHeight;CRect rcWin;GetWindowRect(&rcWin);WINDOWPOS wp;wp.hwnd = m_hWnd;wp.cx = rcWin.Width();wp.cy = rcWin.Height();wp.flags = SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOOWNERZORDER | SWP_NOZORDER;SendMessage(WM_WINDOWPOSCHANGED, 0, (LPARAM)&wp);}

5. 手动添加消息宏ON_WM_DRAWITEM(),重载DrawItem()重画列表控件

void CMyListCtrl::DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct){  CDC* pDC = CDC::FromHandle(lpDrawItemStruct->hDC);      LVITEM lvi = {0};   lvi.mask = LVIF_STATE;//|LVIF_IMAGE;   lvi.stateMask = LVIS_FOCUSED | LVIS_SELECTED ;   lvi.iItem = lpDrawItemStruct->itemID;   BOOL bGet = GetItem(&lvi);     //高亮显示    BOOL bHighlight =((lvi.state & LVIS_DROPHILITED)||((lvi.state & LVIS_SELECTED)   && ((GetFocus() == this)|| (GetStyle() & LVS_SHOWSELALWAYS))));    //画文本背景   CRect rcBack = lpDrawItemStruct->rcItem;   pDC->SetBkMode(TRANSPARENT);     if( bHighlight ) //如果被选中  {     pDC->SetTextColor(RGB(255,255,255));              //文本颜色    pDC->FillRect(rcBack, &CBrush(RGB(90,162,100)));  //行背景色  }   else   {     pDC->SetTextColor(RGB(0,0,0));                    //文本颜色    pDC->FillRect(rcBack, &CBrush(RGB(255,255,255))); //行背景色  }     //绘制文本  if (lpDrawItemStruct->itemAction & ODA_DRAWENTIRE)   {     //得到列数    int nCollumn = GetHeaderCtrl()->GetItemCount();        //循环处理    CString szText;     for (int i = 0; i < GetHeaderCtrl()->GetItemCount(); i++)     {        CRect rcItem;       if ( !GetSubItemRect(lpDrawItemStruct->itemID, i, LVIR_LABEL, rcItem ))      {         continue;       }            szText = GetItemText( lpDrawItemStruct->itemID, i );            rcItem.left += 5; rcItem.right -= 1;       pDC->DrawText(szText, lstrlen(szText), &rcItem,        DT_LEFT | DT_VCENTER | DT_NOPREFIX | DT_SINGLELINE);      }   } }

改变行高的方法II：也可以通过在每一行插入图标来撑起高，图标可以根据需要是否要真正插入

先设置ListCtrl属性

//加载ListCtrlLONG lStyle;lStyle = GetWindowLong(m_TaskList.m_hWnd, GWL_STYLE); //获取当前窗口StylelStyle &= ~LVS_TYPEMASK; //清除显示方式lStyle |= LVS_REPORT | LVSIL_SMALL | LVS_ALIGNTOP | LVS_SHOWSELALWAYS; //设置StyleSetWindowLong(m_TaskList.m_hWnd, GWL_STYLE, lStyle);DWORD dwStyle = m_TaskList.GetExtendedStyle();//dwStyle |= LVS_EX_FULLROWSELECT; //选中某行使整行高亮（只适用与report风格的listctrl）dwStyle |= LVS_EX_SUBITEMIMAGES; //subitem添加图标dwStyle |= LVS_EX_DOUBLEBUFFER;m_TaskList.SetExtendedStyle(dwStyle);//::SendMessage(m_TaskList.m_hWnd, LVM_SETEXTENDEDLISTVIEWSTYLE, LVS_EX_FULLROWSELECT, LVS_EX_FULLROWSELECT);

再设置图标(行高)

//设置ListCtrl行高(仅通过cy=44来控制行高,但这里并不需要加载图标,需要再APP下载时根据不同的APP动态加载具体的图标)m_ImageList.Create(44, 44, ILC_COLOR32 | ILC_MASK, 0, 10); //如果用32*32的会改变行高.ILC_MASK将图标背景设为透明,否则空白地方均为黑色m_ImageList.SetBkColor(RGB(255, 255, 255)); //需要设置背景色为白色,否则图标镂空的地方都是黑色,且图标有黑边框//m_nInstall = m_ImageList.Add(AfxGetApp()->LoadIcon(IDI_ICON1));   //只能是.ico图片,.bmp格式不显示, Add返回索引0////m_nInstall = m_ImageList.Add(LoadIcon(AfxGetResourceHandle(), MAKEINTRESOURCE(IDI_ICON1)));  //或者这个m_TaskList.SetImageList(&m_ImageList, LVSIL_SMALL); //LVSIL_SMALL为小图标(16*16),LVSIL_NORMAL为大图标(32*32),一定要配套使用,否则不显示

引用：

http://bbs.csdn.net/topics/390471207

http://www.cnblogs.com/rainbowzc/archive/2009/08/30/1556904.html

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