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CommitUrlCacheEntry
BOOL CommitUrlCacheEntry( IN LPCSTR lpszUrlName, IN LPCSTR lpszLocalFileName, IN FILETIME ExpireTime, IN FILETIME LastModifiedTime, IN DWORD CacheEntryType, IN LPCBYTE lpHeaderInfo, IN DWORD dwHeaderSize, IN LPCSTR lpszFileExtension, IN DWORD dwReserved );Caches data in the specified file in the cache storage and associates it with the given URL.
- Returns TRUE if successful, or FALSE otherwise. To get extended error information, call GetLastError. Possible error values include:
ERROR_DISK_FULL The cache storage is full. ERROR_FILE_NOT_FOUND The specified local file is not found.
- lpszUrlName
- Address of a string that contains the source name of the cache entry. The name string must be unique, and should not contain any escape characters.
- lpszLocalFileName
- Address of a string that contains the name of the local file that is being cached. This should be the same name as that returned by CreateUrlCacheEntry.
- ExpireTime
- FILETIME structure that contains the expire date and time (GMT) of the file that is being cached. If the expire date and time is unknown, set this parameter to zero.
- LastModifiedTime
- FILETIME structure that contains the last modified date and time (GMT) of the URL that is being cached. If the last modified date and time is unknown, set this parameter to zero.
- CacheEntryType
- Cache type bitmask. Currently, the cache entry type values have not been finalized, so this value does not serve a real purpose at this point, except for STICK_CACHE_ENTRY. Can be a combination of the following values:
COOKIE_CACHE_ENTRY NORMAL_CACHE_ENTRY OCX_CACHE_ENTRY SPARSE_CACHE_ENTRY STABLE_CACHE_ENTRY STICKY_CACHE_ENTRY TRACK_CACHE_ENTRY TRACK_OFFLINE_CACHE_ENTRY TRACK_ONLINE_CACHE_ENTRY URLHISTORY_CACHE_ENTRY The STICKY_CACHE_ENTRY type is used to make cache entries exempt from scavenging. The default exempt time for entries set using CommitUrlCacheEntry is one day. The exempt time can be changed using the SetUrlCacheEntryInfo function.
- lpHeaderInfo
- Address of the header information. If this parameter is not NULL, the header information is treated as extended attributes of the URL and is returned in the INTERNET_CACHE_ENTRY_INFO structure.
- dwHeaderSize
- Size of the header information. If lpHeaderInfo is not NULL, this value is assumed to indicate the size of the header information. An application can maintain headers as part of the data and provide dwHeaderSize together with a NULL value for lpHeaderInfo.
- lpszFileExtension
- Address of a buffer that contains information maintained in the cache database for future use. In this version of Win32 Internet functions, this information is not used.
- dwReserved
- Reserved. If redirection has taken place, this parameter should contain the address of a string containing the original URL. Otherwise, must be set to zero.
If the cache storage is full, CommitUrlCacheEntry invokes cache cleanup to make space for this new file. If the cache entry already exists, the function overwrites the entry if it is not in use. An entry is in use when it has been retrieved with either RetrieveUrlCacheEntryStream or RetrieveUrlCacheEntryFile.
Clients who add entries to the cache should set the headers to at least "HTTP/1.0 200 OK\r\n\r\n"; otherwise, Microsoft Internet Explorer and other WinInet clients will disregard the entry.
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