周报_2012第15周（2012/04/08-2012/04/14）-白红宇

周报_2012第15周（2012/04/08-2012/04/14）

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发布时间：2019-06-13

本文共 5233 字，大约阅读时间需要 17 分钟。

2012.04.09

CString strResPath;
int nIconIndex = 0;
// 在注册表中查找文件对象扩展名的关联资源文件
BOOL bRet = IconParser::Parse(pAppInfo->Url(), (LPTSTR)(LPCTSTR)strResPath.GetBuffer(MAX_PATH), &nIconIndex);
_ASSERT(bRet);
strResPath.ReleaseBuffer();

static BOOL _ParseAssociateIcon(LPCTSTR strFilePath, LPTSTR pIconPath, LPINT pIconIndex)
{

    MyTrace(L"_ParseAssociateIcon Enter\n");
    if (!strFilePath || !pIconPath || !pIconIndex)
        return FALSE;

    if (PathIsDirectory(strFilePath))
    {

        MyTrace(L"_ParseAssociateIcon 1\n");
        CString strDirectroyIconAndIndex;
        DWORD dwType = 0;
        DWORD dwSize = 0;
        SHGetValue(HKEY_CLASSES_ROOT, _T("Directory\\DefaultIcon"), NULL, &dwType, NULL, &dwSize);
        if (dwType != REG_EXPAND_SZ && dwType != REG_SZ)
            return FALSE;
        SHGetValue(HKEY_CLASSES_ROOT, _T("Directory\\DefaultIcon"), NULL, NULL,
            strDirectroyIconAndIndex.GetBuffer(MAX_PATH), &dwSize);
        strDirectroyIconAndIndex.ReleaseBuffer();

        CString strIconPath;
        INT        nIconIndex;
        _SplitPathAndIndex(strDirectroyIconAndIndex, &strIconPath, &nIconIndex);

        //如果是磁盘目录
        if (::PathIsRoot(strFilePath))
        {

            MyTrace(L"_ParseAssociateIcon PathIsRoot %s\n",strFilePath);
            nIconIndex = 8;//磁盘icon的资源
            if (DTFenceUtil::SYSTEM::IsVistaOrLater())
            {

                MyTrace(L"_ParseAssociateIcon IsVistaOrLater \n");
                strIconPath = L"imageres.dll";

                TCHAR szSys[MAX_PATH] = {};
                ExpandEnvironmentStrings(L"%systemroot%", szSys, MAX_PATH);
                CString strSys(szSys);
                if (strSys.Find(strFilePath) == 0)
                {

                    MyTrace(L"_ParseAssociateIcon IsVistaOrLater -36\n");
                    nIconIndex = -36;
                }
                else
                {

                    MyTrace(L"_ParseAssociateIcon IsVistaOrLater -32\n");
                    nIconIndex = -32;
                }
            }
        }

        ExpandToFullPath(strIconPath);
        MyTrace(L"_ParseAssociateIcon checkpath %s\n",strIconPath);
        if (strIconPath.IsEmpty() || !PathFileExists(strIconPath))
            return FALSE;
        MyTrace(L"_ParseAssociateIcon checkpath ok \n");
        StrCpy(pIconPath, strIconPath);
        *pIconIndex = nIconIndex;
        return TRUE;
    }

    LPCTSTR pExtName = PathFindExtension(strFilePath);

    DWORD dwType = 0;
    DWORD dwSize = 0;

    CString strTypeName;
    SHGetValue(HKEY_CLASSES_ROOT, pExtName, NULL, &dwType, NULL, &dwSize);
    if (dwType != REG_SZ)
    {

        MyTrace(L"_ParseAssociateIcon SHGetValue(HKEY_CLASSES_ROOT, pExtName, NULL, &dwType, NULL, &dwSize)\n");
        return FALSE;
    }
    SHGetValue(HKEY_CLASSES_ROOT, pExtName, NULL, NULL, strTypeName.GetBuffer(dwSize / 2 + 8), &dwSize);
    strTypeName.ReleaseBuffer();

    CString strDefaultIconKey;
    strDefaultIconKey.Format(_T("%s\\DefaultIcon"), (LPCTSTR)strTypeName);
    dwType = 0;
    SHGetValue(HKEY_CLASSES_ROOT, strDefaultIconKey, NULL, &dwType, NULL, &dwSize);
    if (dwType == REG_EXPAND_SZ || dwType == REG_SZ)
    {

        MyTrace(L"_ParseAssociateIcon dwType == REG_EXPAND_SZ || dwType == REG_SZ\n");
        CString strIconUnexpandPath;
        SHGetValue(HKEY_CLASSES_ROOT, strDefaultIconKey, NULL, NULL, strIconUnexpandPath.GetBuffer(dwSize / 2 + 8), &dwSize);
        strIconUnexpandPath.ReleaseBuffer();

        CString strIconPathAndIndex;
        ExpandEnvironmentStrings(strIconUnexpandPath, strIconPathAndIndex.GetBuffer(MAX_PATH), MAX_PATH);
        strIconPathAndIndex.ReleaseBuffer();

        CString strIconPath;
        INT        nIconIndex;
        _SplitPathAndIndex(strIconPathAndIndex, &strIconPath, &nIconIndex);

        ExpandToFullPath(strIconPath);
        MyTrace(L"_ParseAssociateIcon checkpath %s\n",strIconPath);
        if (strIconPath.IsEmpty() || !PathFileExists(strIconPath))
            return FALSE;
        MyTrace(L"_ParseAssociateIcon checkpath ok\n");
        StrCpy(pIconPath, strIconPath);
        *pIconIndex = nIconIndex;
    }
    else
    {

        MyTrace(L"_ParseAssociateIcon ! (dwType == REG_EXPAND_SZ || dwType == REG_SZ)\n");
        CString strShellOpenKey;
        strShellOpenKey.Format(_T("%s\\shell\\open\\command"), (LPCTSTR)strTypeName);
        dwType = 0;
        SHGetValue(HKEY_CLASSES_ROOT, strShellOpenKey, NULL, &dwType, NULL, &dwSize);
        if (dwType != REG_EXPAND_SZ && dwType != REG_SZ)
        {

            MyTrace(L"_ParseAssociateIcon command %s\n",strShellOpenKey);
            return FALSE;
        }

        CString strOpenWith;
        SHGetValue(HKEY_CLASSES_ROOT, strShellOpenKey, NULL, NULL, strOpenWith.GetBuffer(dwSize / 2 + 8), &dwSize);
        strOpenWith.ReleaseBuffer();
        int nSpacePos = strOpenWith.Find(_T(" "));
        if (nSpacePos)
            strOpenWith = strOpenWith.Left(nSpacePos);
        strOpenWith.Trim(_T(" \"'\t"));

        StrCpy(pIconPath, strOpenWith);
        *pIconIndex = 0;

    }
    MyTrace(L"_ParseAssociateIcon return %s\n",pIconPath);
    return TRUE;
}

/* 同步获取本地ICON图标
* pszPath : 图标资源文件路径(PE、X:\windows\system32\imageres.dll)
* dwIcoIdx: 图标文件索引(X:\windows\system32\imageres.dll 索引值为-int)
* bMaxIcon: 大图标或小图标(只适用.icon) TRUE:48 * 48 FALSE:32 * 32
* nSizeAppropriate( _in && _out ): 查找最匹配的ICON尺寸(默认 48 * 48 )( if nSizeAppropriate > 0 ) */
HICON LoadIconFromCache(LPCWSTR pszPath, DWORD dwIcoIdx, BOOL bMaxIcon, int& nSizeAppropriate);

X:\windows\system32\imageres.dll 索引值为-int

2012.04.10

IShellLink::GetIconLocation 查找 X:\Program Files\Tencent\QQ\Bin\QQProtect\Bin\QQProtect.exe 的图标资源文件
"C:\Users\lishupeng\AppData\Roaming\Microsoft\Installer\{052CFB79-9D62-42E3-8A15-DE66C2C97C3E}\NewShortcut311_0951773981FA4AB2BC21B7DCEC95892A.exe"。

2012.04.11

图标优化

图标分类：

PE可执行文件(*.exe);

动态连接库(*.dll);

快捷方式(*.lnk);

文件对象;

文件夹对象;

未知文件(无扩展名);

非法文件(用户自建的非32位的 EXE\DLL文件)。

查找最匹配当前显示尺寸的图标 - 查找方式：
1、在PE文件、DLL、内部包含图标的文件中查找；
2、查找文件对象关联的可执行程序的资源文件。
3、查找Windows系统资源文件X:\windows\system32\imageres.dll、X:\windows\System32\shell32.dll。