shellapi资源管理器【from http://www.cnblogs.com/Clingingboy/archive/2011/04/16/2018284.html】
2013-08-06 09:09
543 查看
文件夹浏览(SHBrowseForFolder)
一.首先要为SHBrowseForFolder准备一个结构体BROWSEINFO
typedef struct _browseinfoW { HWND hwndOwner; PCIDLIST_ABSOLUTE pidlRoot; LPWSTR pszDisplayName; // Return display name of item selected. LPCWSTR lpszTitle; // text to go in the banner over the tree. UINT ulFlags; // Flags that control the return stuff BFFCALLBACK lpfn; LPARAM lParam; // extra info that's passed back in callbacks int iImage; // output var: where to return the Image index. } BROWSEINFOW, *PBROWSEINFOW, *LPBROWSEINFOW;
二.获取PIDL
在BROWSEINFOW结构体中,pidlRoot是最关键的,需要调用一些额外的函数来获取PIDL,然后给pidlRoot赋值1.获取特殊的目录地址
在Windows中有很多特殊的的目录地址,如我的电脑,控件面板,我的图片等,如下定义
#define CSIDL_DESKTOP 0x0000 // <desktop> #define CSIDL_INTERNET 0x0001 // Internet Explorer (icon on desktop) #define CSIDL_PROGRAMS 0x0002 // Start Menu\Programs #define CSIDL_CONTROLS 0x0003 // My Computer\Control Panel #define CSIDL_PRINTERS 0x0004 // My Computer\Printers #define CSIDL_PERSONAL 0x0005 // My Documents #define CSIDL_FAVORITES 0x0006 // <user name>\Favorites #define CSIDL_STARTUP 0x0007 // Start Menu\Programs\Startup #define CSIDL_RECENT 0x0008 // <user name>\Recent
我们可以通过SHGetSpecialFolderLocation来填充一个LPITEMIDLIST,
BROWSEINFO bi; bi.hwndOwner = hDlg; TCHAR szTitle[MAX_PATH] = {0}; TCHAR szPath[MAX_PATH] = {0}; TCHAR szDisplay[MAX_PATH] = {0}; LPITEMIDLIST pidl = NULL; SHGetSpecialFolderLocation(NULL, CSIDL_DESKTOP, &pidl); bi.pidlRoot = pidl;
然后调用SHBrowseForFolder(&bi);就可以出现以下对话框
![](http://images.cnblogs.com/cnblogs_com/Clingingboy/201104/201104161520464745.png)
2.使用IShellFolder获取目录地址
如果不是特殊目录的,可以使用IShellFolder的ParseDisplayName方法,来获取PIDL
首先要调用SHGetDesktopFolder函数来获取IShellFolder,ShellFolder代表桌面,表示是根目录,根目录总是有办法找到任意一个子目录的
然后调用ParseDisplayName方法来解析目录,最终得到LPITEMIDLIST。
下面的步骤还是一样把LPITEMIDLIST填充到BROWSEINFO的pidlRoot 字段,调用SHBrowseForFolder方法
SHParseDisplayName方法提供了一个便利
HRESULT SHPathToPIDL(LPCTSTR szPath, LPITEMIDLIST* ppidl) { LPSHELLFOLDER pShellFolder = NULL; OLECHAR wszPath[MAX_PATH] = {0}; ULONG nCharsParsed = 0; // Get an IShellFolder interface pointer HRESULT hr = SHGetDesktopFolder(&pShellFolder); if(FAILED(hr)) return hr; // Convert the path name to Unicode MultiByteToWideChar(CP_ACP, MB_PRECOMPOSED, szPath, -1, wszPath, MAX_PATH); // Call ParseDisplayName() to do the job hr = pShellFolder->ParseDisplayName(NULL, NULL, wszPath, &nCharsParsed, ppidl, NULL); // Clean up pShellFolder->Release(); return hr; }
3.获取选择的目录
当选中目录点击确定之后,就需要获取一个文件系统路径,可以使用SHGetPathFromIDList函数SHGetPathFromIDList(pidlFolder, szPath);
szPath就是我们想要的结果
4.BROWSEINFO的回调方法
在.net中会声明很多的事件,若Initialized,SelectedChanged等,c++是采用消息的机制,根据消息的不同进行不同处理,当然这些消息都是预先定义好的.#define BFFM_INITIALIZED 1 #define BFFM_SELCHANGED 2 #define BFFM_VALIDATEFAILEDA 3 // lParam:szPath ret:1(cont),0(EndDialog) #define BFFM_VALIDATEFAILEDW 4 // lParam:wzPath ret:1(cont),0(EndDialog) #define BFFM_IUNKNOWN 5 // provides IUnknown to client. lParam: IUnknown*
示例如下:
bi.lpfn = BrowseCallbackProc; int CALLBACK BrowseCallbackProc(HWND hwnd, UINT uMsg, LPARAM lParam, LPARAM dwData) { switch(uMsg) { case BFFM_INITIALIZED: { } break; case BFFM_SELCHANGED: { } break; case BFFM_VALIDATEFAILED: return 1; } return 0; }
三.文件夹选项
如下图,应该是很熟悉![](http://images.cnblogs.com/cnblogs_com/Clingingboy/201104/201104161520527258.png)
SHGetSettings函数可以获取这些选项的信息,存在结构体SHELLFLAGSTATE当中
typedef struct { BOOL fShowAllObjects : 1; BOOL fShowExtensions : 1; BOOL fNoConfirmRecycle : 1; BOOL fShowSysFiles : 1; BOOL fShowCompColor : 1; BOOL fDoubleClickInWebView : 1; BOOL fDesktopHTML : 1; BOOL fWin95Classic : 1; BOOL fDontPrettyPath : 1; BOOL fShowAttribCol : 1; BOOL fMapNetDrvBtn : 1; BOOL fShowInfoTip : 1; BOOL fHideIcons : 1; #if (NTDDI_VERSION >= NTDDI_VISTA) BOOL fAutoCheckSelect: 1; BOOL fIconsOnly: 1; UINT fRestFlags : 1; // when adding additional flags keep SHELLSTATE and SHGetSettings in sync. #else UINT fRestFlags : 3; // when adding additional flags keep SHELLSTATE and SHGetSettings in sync. #endif } SHELLFLAGSTATE, *LPSHELLFLAGSTATE;
必须输入想要获取标识才行,不然就会是默认值(难道是为了性能,为何如此,太麻烦)
SHELLFLAGSTATE sfs; SHGetSettings(&sfs, SSF_DESKTOPHTML | SSF_SHOWALLOBJECTS | SSF_MAPNETDRVBUTTON | SSF_SHOWATTRIBCOL | SSF_SHOWEXTENSIONS);
相关文章推荐
- http://www.cnblogs.com/yungboy/archive/2009/03/31/1426217.html
- http://www.cnblogs.com/yungboy/archive/2010/06/08/1754273.html
- http://www.cnblogs.com/yungboy/archive/2009/03/31/1426285.html
- http://www.cnblogs.com/yungboy/archive/2010/06/09/1754407.html
- 转载:.net 操作FTP from http://www.cnblogs.com/aierong/archive/2008/12/08/ftp.html
- http://www.cnblogs.com/yungboy/archive/2009/07/26/1531422.html
- Silverlight & Blend动画设计系列一:偏移动画(TranslateTransform) from http://www.cnblogs.com/beniao/archive/2010/03/21/1685670.html
- http://www.cnblogs.com/yungboy/archive/2009/08/26/1554559.html
- http://www.cnblogs.com/yungboy/archive/2010/06/23/1762994.html
- http://www.cnblogs.com/yungboy/archive/2010/04/25/VS2010Study.html
- http://www.cnblogs.com/fromchaos/archive/2009/11/29/1613313.html
- http://www.cnblogs.com/yungboy/archive/2010/05/25/1743980.html
- http://www.cnblogs.com/yungboy/archive/2010/06/25/1765280.html
- 初学Windows Phone:MVVM Light Toolkit from:http://www.cnblogs.com/lrj525/archive/2012/04/05/2433226.html
- Jquery插件和注意点(提取自http://www.cnblogs.com/fromearth/archive/2009/07/08/1519054.html)
- http://www.cnblogs.com/yungboy/archive/2010/05/25/1743991.html
- Android layout個別屬性的區別[摘 from:http://www.cnblogs.com/playing/archive/2011/04/07/2008620.html]
- windows phone (20) Image元素 from http://www.cnblogs.com/shenzhoulong/archive/2012/04/25/2468951.html
- CImage类 from http://www.cnblogs.com/afarmer/archive/2012/03/31/2427273.html
- http://www.cnblogs.com/yungboy/archive/2010/05/25/1744009.html