ReadUrlCacheEntryStream Function

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Reads the cached data from a stream that has been opened using the RetrieveUrlCacheEntryStream function.

Syntax

BOOL ReadUrlCacheEntryStream(
    IN HANDLE hUrlCacheStream,
    IN  DWORD dwLocation,
    IN OUT LPVOID lpBuffer,
    IN OUT LPDWORD lpdwLen,
    IN DWORD dwReserved
);

Parameters

hUrlCacheStream

HINTERNET handle that was returned by the RetrieveUrlCacheEntryStream function.

dwLocation

Unsigned long integer value that contains the offset to read from.

lpBuffer

Address of a buffer that receives the data.

lpdwLen

Address of an unsigned long integer variable that specifies the length of the lpBuffer buffer, in TCHARs. When the function returns, the variable contains the number of TCHARs copied to the buffer, or the required size of the buffer, in bytes.

dwReserved

Reserved. Must be set to zero.

Return Value

Returns TRUE if successful, or FALSE otherwise. To get extended error information, call GetLastError.

Remarks

If the buffer size is not sufficient, GetLastError returns ERROR_INSUFFICIENT_BUFFER and sets lpdwLen to the size necessary to contain all the information.

Function Information

Windows NT	Use version 4.0. Implemented only as an ANSI function.
Windows	Use Windows 95 and later. Implemented only as an ANSI function.
Header	Wininet.h
Import library	Wininet.lib
Minimum availability	Internet Explorer 3.0

See Also

Microsoft Win32 Internet Functions Overview, Caching, Microsoft Win32 Internet Functions Reference, Persistent URL Cache Functions