关于打开浏览文件夹的问题

[huangcaoshop]

str_browseinfo lstr_bi
str_itemidlist lstr_idl
unsignedlong ll_pidl, ll_r,ll_Null
Integer li_pos
String ls_Path
SetNull( ll_Null )
lstr_bi.hOwner = Handle( awi_Parent )
lstr_bi.pidlRoot = 0
lstr_bi.lpszTitle = as_caption
lstr_bi.ulFlags = bif_ReturnOnlyFSDirs
lstr_bi.pszDisplayName = Space( 255 )
lstr_bi.lpfn = ll_Null
ll_pidl = SHBrowseForFolderA( lstr_bi )
ls_Path = Space( 255 )
ll_R = SHGetPathFromIDListA( ll_pidl, ls_Path )
CoTaskMemFree( ll_pidl )
RETURN ls_Path


这是用API 打开浏览文件夹 对话框的窗口 但是没有新建文件夹按钮 查资料 说是关键在于lstr_bi.ulFlags参数的值 可是没查到具体值是多少 试了几个也不行 请高手赐教 怎样加上新建文件夹按钮 谢谢！

[AFIC]

C:\WINDOWS\system32\shell32.dll
又健看版本
5.0以上才有，5.0以下无此功能
5。0以上你还需要调用
OleInitialize 或者CoInitialize
才能实现。以下msdn原文
BIF_NEWDIALOGSTYLE
Version 5.0. Use the new user interface. Setting this flag provides the user with a larger dialog box that can be resized. The dialog box has several new capabilities including: drag-and-drop capability within the dialog box, reordering, shortcut menus, new folders, delete, and other shortcut menu commands. To use this flag, you must call OleInitialize or CoInitialize before calling SHBrowseForFolder.

[leio]

//#define BIF_NEWDIALOGSTYLE 0x0040

lstr_bi.ulFlags = 64 //0x0040就是10进制的64

[leio]

补充一下

BIF_BROWSEFORCOMPUTER
Only return computers. If the user selects anything other than a computer, the OK button is grayed.
BIF_BROWSEFORPRINTER
Only return printers. If the user selects anything other than a printer, the OK button is grayed.
BIF_BROWSEINCLUDEFILES
Version 4.71. The browse dialog box will display files as well as folders.
BIF_BROWSEINCLUDEURLS
Version 5.0. The browse dialog box can display URLs. The BIF_USENEWUI and BIF_BROWSEINCLUDEFILES flags must also be set. If these three flags are not set, the browser dialog box will reject URLs. Even when these flags are set, the browse dialog box will only display URLs if the folder that contains the selected item supports them. When the folder's IShellFolder::GetAttributesOf method is called to request the selected item's attributes, the folder must set the SFGAO_FOLDER attribute flag. Otherwise, the browse dialog box will not display the URL.
BIF_DONTGOBELOWDOMAIN
Do not include network folders below the domain level in the dialog box's tree view control.
BIF_EDITBOX
Version 4.71. Include an edit control in the browse dialog box that allows the user to type the name of an item.
BIF_NEWDIALOGSTYLE
Version 5.0. Use the new user interface. Setting this flag provides the user with a larger dialog box that can be resized. The dialog box has several new capabilities including: drag and drop capability within the dialog box, reordering, shortcut menus, new folders, delete, and other shortcut menu commands. To use this flag, you must call OleInitialize or CoInitialize before calling SHBrowseForFolder.
BIF_NONEWFOLDERBUTTON
Version 6.0. Do not include the New Folder button in the browse dialog box.
BIF_NOTRANSLATETARGETS
Version 6.0. When the selected item is a shortcut, return the PIDL of the shortcut itself rather than its target.
BIF_RETURNFSANCESTORS
Only return file system ancestors. An ancestor is a subfolder that is beneath the root folder in the namespace hierarchy. If the user selects an ancestor of the root folder that is not part of the file system, the OK button is grayed.
BIF_RETURNONLYFSDIRS
Only return file system directories. If the user selects folders that are not part of the file system, the OK button is grayed.
BIF_SHAREABLE
Version 5.0. The browse dialog box can display shareable resources on remote systems. It is intended for applications that want to expose remote shares on a local system. The BIF_NEWDIALOGSTYLE flag must also be set.
BIF_STATUSTEXT
Include a status area in the dialog box. The callback function can set the status text by sending messages to the dialog box.
BIF_UAHINT
Version 6.0. When combined with BIF_NEWDIALOGSTYLE, adds a usage hint to the dialog box in place of the edit box. BIF_EDITBOX overrides this flag.
BIF_USENEWUI
Version 5.0. Use the new user interface, including an edit box. This flag is equivalent to BIF_EDITBOX | BIF_NEWDIALOGSTYLE. To use BIF_USENEWUI, you must call OleInitialize or CoInitialize before calling SHBrowseForFolder.
BIF_VALIDATE
Version 4.71. If the user types an invalid name into the edit box, the browse dialog box will call the application's BrowseCallbackProc with the BFFM_VALIDATEFAILED message. This flag is ignored if BIF_EDITBOX is not specified.


BIF_DEFAULT = 0x0000,
BIF_BROWSEFORCOMPUTER = 0x1000,
BIF_BROWSEFORPRINTER = 0x2000,
BIF_BROWSEINCLUDEFILES = 0x4000,
BIF_BROWSEINCLUDEURLS = 0x0080,
BIF_DONTGOBELOWDOMAIN = 0x0002,
BIF_EDITBOX = 0x0010,
BIF_NEWDIALOGSTYLE = 0x0040,
BIF_NONEWFOLDERBUTTON = 0x0200,
BIF_RETURNFSANCESTORS = 0x0008,
BIF_RETURNONLYFSDIRS = 0x0001,
BIF_SHAREABLE = 0x8000,
BIF_STATUSTEXT = 0x0004,
BIF_UAHINT = 0x0100,
BIF_VALIDATE = 0x0020,
BIF_NOTRANSLATETARGETS = 0x0400,

参考：
shlobj.h