InternetGetPerSiteCookieDecisionA function (wininet.h)

Retrieves a decision on cookies for a given domain.


BOOL InternetGetPerSiteCookieDecisionA(
  [in]  LPCSTR        pchHostName,
  [out] unsigned long *pResult


[in] pchHostName

An LPCTSTR that points to a string containing a domain.

[out] pResult

A pointer to an unsigned long that contains one of the InternetCookieState enumeration values.

Return value

Returns TRUE if the decision was retrieved and FALSE otherwise.


A return value of FALSE may indicate that the domain pchHostName does not have any site-specific cookie regulations.

WinINet minimizes the domain specified in the pchHostName parameter and sets the cookie policy on the minimum legal domain. For example, if the specified host name is, the policy is set on the minimized host name

Like all other aspects of the WinINet API, this function cannot be safely called from within DllMain or the constructors and destructors of global objects.

Note  WinINet does not support server implementations. In addition, it should not be used from a service. For server implementations or services use Microsoft Windows HTTP Services (WinHTTP).


The wininet.h header defines InternetGetPerSiteCookieDecision as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.


Minimum supported client Windows 2000 Professional [desktop apps only]
Minimum supported server Windows 2000 Server [desktop apps only]
Target Platform Windows
Header wininet.h
Library Wininet.lib
DLL Wininet.dll

See also