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分享哪位知道一个文件的文件类型是由哪个结构描述的?
在windows的资源管理器中,可以看到一个文件的文件类型.例如,word文档,JPEG等.
如果获取这个属性??应该怎么做?
如果获取这个属性??应该怎么做?
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modena 2003-11-25
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FILETYPEATTRIBUTEFLAGS Constants
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Constants
FTA_Exclude (0x00000001)
Excludes the file class.
FTA_Show (0x00000002)
Shows file classes, such as folders, that aren't associated with a file name extension.
FTA_HasExtension (0x00000004)
Indicates that the file class has a file name extension.
FTA_NoEdit (0x00000008)
Prohibits editing of the registry entries associated with this file class, the addition of new entries, and the deletion or modification of existing entries.
FTA_NoRemove (0x00000010)
Prohibits deletion of the registry entries associated with this file class.
FTA_NoNewVerb (0x00000020)
Prohibits the addition of new verbs to the file class.
FTA_NoEditVerb (0x00000040)
Prohibits the modification or deletion of canonical verbs such as open and print.
FTA_NoRemoveVerb (0x00000080)
Prohibits the deletion of canonical verbs such as open and print.
FTA_NoEditDesc (0x00000100)
Prohibits the modification or deletion of the description of the file class.
FTA_NoEditIcon (0x00000200)
Prohibits the modification or deletion of the icon assigned to the file class.
FTA_NoEditDflt (0x00000400)
Prohibits the modification of the default verb.
FTA_NoEditVerbCmd (0x00000800)
Prohibits the modification of the commands associated with verbs.
FTA_NoEditVerbExe (0x00001000)
Prohibits the modification or deletion of verbs.
FTA_NoDDE (0x00002000)
Prohibits the modification or deletion of the DDE-related entries.
FTA_NoEditMIME (0x00008000)
Prohibits the modification or deletion of the content type and default extension entries.
FTA_OpenIsSafe (0x00010000)
Indicates that the file class's open verb can be safely invoked for downloaded files.
FTA_AlwaysUnsafe (0x00020000)
Prevents the "Never ask me" check box from being enabled. The user can override this attribute through the File Type dialog box.
FTA_AlwaysShowExt (0x00040000)
Causes the file class's file name extension is always shown, even if the user has selected the "Hide Extensions" option.
FTA_NoRecentDocs (0x00100000)
Prohibits the addition of members of this file class to the Recent Documents folder.
Remarks
The following example assigns the FTA_NoRemove (0x00000010) and FTA_NoNewVerb (0x00000020) attributes to the .myp file class.
HKEY_CLASSES_ROOT
.myp
(Default) = MyProgram.1
...
MyProgram.1
(Default) = MyProgram Application
EditFlags= 00 00 00 30
--------------------------------------------------------------------------------
Constants
FTA_Exclude (0x00000001)
Excludes the file class.
FTA_Show (0x00000002)
Shows file classes, such as folders, that aren't associated with a file name extension.
FTA_HasExtension (0x00000004)
Indicates that the file class has a file name extension.
FTA_NoEdit (0x00000008)
Prohibits editing of the registry entries associated with this file class, the addition of new entries, and the deletion or modification of existing entries.
FTA_NoRemove (0x00000010)
Prohibits deletion of the registry entries associated with this file class.
FTA_NoNewVerb (0x00000020)
Prohibits the addition of new verbs to the file class.
FTA_NoEditVerb (0x00000040)
Prohibits the modification or deletion of canonical verbs such as open and print.
FTA_NoRemoveVerb (0x00000080)
Prohibits the deletion of canonical verbs such as open and print.
FTA_NoEditDesc (0x00000100)
Prohibits the modification or deletion of the description of the file class.
FTA_NoEditIcon (0x00000200)
Prohibits the modification or deletion of the icon assigned to the file class.
FTA_NoEditDflt (0x00000400)
Prohibits the modification of the default verb.
FTA_NoEditVerbCmd (0x00000800)
Prohibits the modification of the commands associated with verbs.
FTA_NoEditVerbExe (0x00001000)
Prohibits the modification or deletion of verbs.
FTA_NoDDE (0x00002000)
Prohibits the modification or deletion of the DDE-related entries.
FTA_NoEditMIME (0x00008000)
Prohibits the modification or deletion of the content type and default extension entries.
FTA_OpenIsSafe (0x00010000)
Indicates that the file class's open verb can be safely invoked for downloaded files.
FTA_AlwaysUnsafe (0x00020000)
Prevents the "Never ask me" check box from being enabled. The user can override this attribute through the File Type dialog box.
FTA_AlwaysShowExt (0x00040000)
Causes the file class's file name extension is always shown, even if the user has selected the "Hide Extensions" option.
FTA_NoRecentDocs (0x00100000)
Prohibits the addition of members of this file class to the Recent Documents folder.
Remarks
The following example assigns the FTA_NoRemove (0x00000010) and FTA_NoNewVerb (0x00000020) attributes to the .myp file class.
HKEY_CLASSES_ROOT
.myp
(Default) = MyProgram.1
...
MyProgram.1
(Default) = MyProgram Application
EditFlags= 00 00 00 30
