資源簡介
通過重寫Ctreectrl控件的NM_CUSTOMDRAW消息完成功能.

代碼片段和文件信息
//?MyTreeCtrl.cpp?:?實現文件
//
#include?“stdafx.h“
#include?“Tree_After_Add_Icon.h“
#include?“MyTreeCtrl.h“
//?CMyTreeCtrl
IMPLEMENT_DYNAMIC(CMyTreeCtrl?CTreeCtrl)
CMyTreeCtrl::CMyTreeCtrl()
{
}
CMyTreeCtrl::~CMyTreeCtrl()
{
}
BEGIN_MESSAGE_MAP(CMyTreeCtrl?CTreeCtrl)
ON_NOTIFY_REFLECT(NM_CUSTOMDRAW?&CMyTreeCtrl::OnNMCustomdraw)
END_MESSAGE_MAP()
//?CMyTreeCtrl?消息處理程序
void?CMyTreeCtrl::OnNMCustomdraw(NMHDR?*pNMHDR?LRESULT?*pResult)
{
NMLVCUSTOMDRAW*?pLVCD?=?reinterpret_cast(pNMHDR);?
if?(?NULL?==?pLVCD?)?
return;?
*pResult?=?CDRF_DODEFAULT;?
*pResult?|=?CDRF_NOTIFYITEMDRAW;?
*pResult?|=?CDRF_NOTIFYSUBITEMDRAW;?
*pResult?|=?CDRF_NOTIFYPOSTPAINT;
const?DWORD?dwDrawStage?=?pLVCD->nmcd.dwDrawStage;?
if?(?dwDrawStage?!=?CDDS_ITEMPOSTPAINT?)?
return;
//?界面重繪,樹節點后添加圖標?
HTREEITEM?hItem?=?(HTREEITEM)pLVCD->nmcd.dwItemSpec;?
NodeInfo*?pNodeInfo?=?(NodeInfo*)GetItemData(hItem);?
if?(?NULL?==?pNodeInfo?)
return;?
//?根節點直接返回?
if?(?1?==?pNodeInfo->m_NodeType?)?
return;?
//?不顯示圖標,直接返回?
if?(?!pNodeInfo->bImage?)?
return;?
CRect?textRect;?
GetItemRect(?hItem?&textRect?TRUE?);?
CDC*?pDC?=?CDC::FromHandle(?pLVCD->nmcd.hdc?);
//?為每個條目添加圖標
DrawItemImage(pDC?textRect);?
}
//?為每個條目添加圖標
void?CMyTreeCtrl::DrawItemImage(?CDC*?pOrigDC?CRect?origRect?)?
{?
//?畫圖采用雙緩沖?
CDC?memDC;?
memDC.CreateCompatibleDC(pOrigDC);
//?加載.bmp格式圖片?
CBitmap?bitmap;?
bitmap.LoadBitmap(IDB_SMILE_BITMAP);
//?選擇圖片對象?
memDC.Selectobject(&bitmap);
//?位圖長寬獲取?
BITMAP?bmInfo;?
bitmap.Getobject(sizeof(BITMAP)?&bmInfo);
//?輸出圖片?
pOrigDC->BitBlt(?origRect.right?origRect.top?bmInfo.bmWidth?bmInfo.bmHeight?&memDC?0?0?SRCCOPY?);
//?繪圖完成后的清理?
bitmap.Deleteobject();?
//?刪除DC
memDC.DeleteDC();?
}
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????1953??2014-10-28?13:59??Tree_After_Add_Icon\Tree_After_Add_Icon\MyTreeCtrl.cpp
?????文件????????593??2014-10-28?13:59??Tree_After_Add_Icon\Tree_After_Add_Icon\MyTreeCtrl.h
?????文件???????3107??2014-10-28?13:39??Tree_After_Add_Icon\Tree_After_Add_Icon\ReadMe.txt
?????文件????????822??2014-10-28?13:43??Tree_After_Add_Icon\Tree_After_Add_Icon\res\Smile.bmp
????.......?????21630??2003-07-24?09:52??Tree_After_Add_Icon\Tree_After_Add_Icon\res\Tree_After_Add_Icon.ico
?????文件????????375??2014-10-28?13:39??Tree_After_Add_Icon\Tree_After_Add_Icon\res\Tree_After_Add_Icon.rc2
?????文件????????782??2014-10-28?13:44??Tree_After_Add_Icon\Tree_After_Add_Icon\resource.h
?????文件????????150??2014-10-28?13:39??Tree_After_Add_Icon\Tree_After_Add_Icon\stdafx.cpp
?????文件???????1796??2014-10-28?13:39??Tree_After_Add_Icon\Tree_After_Add_Icon\stdafx.h
?????文件???????1030??2014-10-28?13:39??Tree_After_Add_Icon\Tree_After_Add_Icon\targetver.h
?????文件??????60016??2014-10-28?13:44??Tree_After_Add_Icon\Tree_After_Add_Icon\Tree_After_Add_Icon.aps
?????文件???????1816??2014-10-28?13:39??Tree_After_Add_Icon\Tree_After_Add_Icon\Tree_After_Add_Icon.cpp
?????文件????????519??2014-10-28?13:39??Tree_After_Add_Icon\Tree_After_Add_Icon\Tree_After_Add_Icon.h
?????文件???????5569??2014-10-28?13:44??Tree_After_Add_Icon\Tree_After_Add_Icon\Tree_After_Add_Icon.rc
?????文件???????5797??2014-10-28?13:43??Tree_After_Add_Icon\Tree_After_Add_Icon\Tree_After_Add_Icon.vcproj
?????文件???????1427??2014-11-01?08:51??Tree_After_Add_Icon\Tree_After_Add_Icon\Tree_After_Add_Icon.vcproj.39ZI0P9277FY1K7.Administrator.user
?????文件???????5508??2014-10-29?14:29??Tree_After_Add_Icon\Tree_After_Add_Icon\Tree_After_Add_IconDlg.cpp
?????文件????????825??2014-10-28?13:47??Tree_After_Add_Icon\Tree_After_Add_Icon\Tree_After_Add_IconDlg.h
?????文件????????923??2014-10-28?13:39??Tree_After_Add_Icon\Tree_After_Add_Icon.sln
????..A..H.?????15360??2014-11-01?08:51??Tree_After_Add_Icon\Tree_After_Add_Icon.suo
?????目錄??????????0??2014-10-28?13:43??Tree_After_Add_Icon\Tree_After_Add_Icon\res
?????目錄??????????0??2014-11-01?08:51??Tree_After_Add_Icon\Tree_After_Add_Icon
?????目錄??????????0??2014-11-01?08:51??Tree_After_Add_Icon
-----------?---------??----------?-----??----
???????????????129998????????????????????23
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