SHGetSpecialFolderPathA/SHGetFolderPathA/SHGetKnownFolderPath - 获取指定的系统路径
获取指定路径有三个函数，分别是：
SHGetSpecialFolderPathA(HWND hwnd, LPSTR pszPath, int csidl, BOOL fCreate) BOOL;【已不再支持】
SHGetFolderPathA(HWND hwnd, int csidl, HANDLE hToken, DWORD dwFlags, LPSTR pszPath) BOOL;【已丢弃】
SHGetKnownFolderPath(REFKNOWNFOLDERID rfid, DWORD dwFlags, HANDLE hToken, PWSTR *ppszPath) BOOL;
前两个函数使用CSIDL 来识别系统路径，SHGetKnownFolderPath 则使用CSIDL转化后的KNOWNFOLDERID标志来识别系统目录。
pszPath：返回路径的缓冲区
nFolder：标识代号
fCreate：true ：如果文件夹不存在则创建，false：不创建
dwFlags: 附加的获取选项。默认为0，其它更多Folder Flag
hToken: 代表特定用户的access token.
pszPath和nFolder对应关系：
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nFolder
|
pszPath
|
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0
|
C:/Documents and Settings/当前用户/桌面
|
|
2
|
C:/Documents and Settings/当前用户/「开始」菜单/程序
|
|
5
|
C:/Documents and Settings/当前用户/My Documents
|
|
6
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C:/Documents and Settings/当前用户/Favorites
|
|
7
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C:/Documents and Settings/当前用户/「开始」菜单/程序/启动
|
|
8
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C:/Documents and Settings/当前用户/Recent
|
|
9
|
C:/Documents and Settings/当前用户/SendTo
|
|
11
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C:/Documents and Settings/当前用户/「开始」菜单
|
|
13
|
C:/Documents and Settings/当前用户/My Documents/My Music
|
|
14
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C:/Documents and Settings/当前用户/My Documents/My Videos
|
|
16
|
C:/Documents and Settings/当前用户/桌面
|
|
19
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C:/Documents and Settings/当前用户/NetHood
|
|
20
|
C:/WINDOWS/Fonts
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|
21
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C:/Documents and Settings/当前用户/Templates
|
|
22
|
C:/Documents and Settings/All Users/「开始」菜单
|
|
23
|
C:/Documents and Settings/All Users/「开始」菜单/程序
|
|
24
|
C:/Documents and Settings/All Users/「开始」菜单/程序/启动
|
|
25
|
C:/Documents and Settings/All Users/桌面
|
|
26
|
C:/Documents and Settings/当前用户/Application Data
|
|
27
|
C:/Documents and Settings/当前用户/PrintHood
|
|
28
|
C:/Documents and Settings/当前用户/Local Settings/Application Data
|
|
31
|
C:/Documents and Settings/All Users/Favorites
|
|
32
|
C:/Documents and Settings/当前用户/Local Settings/Temporary Internet Files
|
|
33
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C:/Documents and Settings/当前用户/Cookies
|
|
34
|
C:/Documents and Settings/当前用户/Local Settings/History
|
|
35
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C:/Documents and Settings/All Users/Application Data
|
|
36
|
C:/WINDOWS
|
|
37
|
C:/WINDOWS/system32
|
|
38
|
C:/Program Files
|
|
39
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C:/Documents and Settings/当前用户/My Documents/My Pictures
|
|
40
|
C:/Documents and Settings/当前用户
|
|
43
|
C:/Program Files/Common Files
|
|
45
|
C:/Documents and Settings/All Users/Templates
|
|
46
|
C:/Documents and Settings/All Users/Documents
|
|
47
|
C:/Documents and Settings/All Users/「开始」菜单/程序/管理工具
|
|
48
|
C:/Documents and Settings/当前用户/「开始」菜单/程序/管理工具
|
|
53
|
C:/Documents and Settings/All Users/Documents/My Music
|
|
54
|
C:/Documents and Settings/All Users/Documents/My Pictures
|
|
55
|
C:/Documents and Settings/All Users/Documents/My Videos
|
|
56
|
C:/WINDOWS/resources
|
|
59
|
C:/Documents and Settings/当前用户/Local Settings/Application Data/Microsoft/CD Burning
|
易语言实例
szPath ＝ 取空白文本 (255)
SHGetSpecialFolderPath (0, szPath, 26, 0) ‘取得当前用户的Application Data路径
SHGetSpecialFolderPath (0, szPath, 26, 0) ‘取得当前用户的Application Data路径
