Queries an Internet option on the specified handle.

Syntax

BOOL InternetQueryOption(
  __in     HINTERNET hInternet,
  __in     DWORD dwOption,
  __out    LPVOID lpBuffer,
  __inout  LPDWORD lpdwBufferLength
);

Parameters

hInternet [in]

Handle on which to query information.

dwOption [in]

Internet option to be queried. This can be one of the Option Flags values.

lpBuffer [out]

Pointer to a buffer that receives the option setting. Strings returned by InternetQueryOption are globally allocated, so the calling application must free them when it is finished using them.

lpdwBufferLength [in, out]

Pointer to a variable that contains the size of lpBuffer, in bytes. When InternetQueryOption returns, lpdwBufferLength specifies the size of the data placed into lpBuffer. If GetLastError returns ERROR_INSUFFICIENT_BUFFER, this parameter points to the number of bytes required to hold the requested information.

Return Value

Returns TRUE if successful, or FALSE otherwise. To get a specific error message, call GetLastError.

Remarks

GetLastError will return the ERROR_INVALID_PARAMETER if an option flag that is invalid for the specified handle type is passed to the dwOption parameter.

For more information, see Setting and Retrieving Internet Options.

Requirements

See Also

Common Functions

WinINet Functions

FtpGetFile

FtpPutFile

InternetConnect

InternetOpen

InternetSetOption

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Build date: 11/19/2009