Note
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This method starts the operation.
HRESULT Start(LPCWSTR szUrl,IInternetProtocolSink* pOIProtSink,IInternetBindInfo* pOIBindInfo,DWORD grfPI,HANDLE_PTR dwReserved);
Parameters
- szUrl
[in] Address of a string value that contains the URL. For a pluggable MIME filter, this parameter contains the MIME type. - pOIProtSink
[in] Address of the protocol sink provided by the client. - pOIBindInfo
[in] Address of the IInternetBindInfo interface from which the protocol gets download-specific information. - grfPI
[in] Unsigned long integer value that contains the flags that determine if the method only parses or if it parses and downloads the URL. This can be one of the PI_FLAGS values. - dwReserved
[in] For pluggable MIME filters, contains the address of a PROTOCOLFILTERDATA structure. Otherwise, it is reserved and must be set to NULL.
Return Values
Returns one of the values shown in the following table.
| Value | Description |
|---|---|
| S_OK | Success. |
| E_PENDING | The operation started and will complete asynchronously. |
| INET_E_USE_DEFAULT_PROTOCOLHANDLER | The handler cannot handle this URL, so the default handler should be used. See the Remarks section below. |
| INET_E_xxx | Internet-specific errors. For additional information, see the URL Moniker Error Codes definitions. |
Remarks
INET_E_USE_DEFAULT_PROTOCOLHANDLER can be returned only by a pluggable namespace handler or MIME filter. Only a single, permanently registered asynchronous pluggable protocol handler can be assigned to a particular scheme (such as FTP), so there are no other handlers to default to.
Requirements
OS Versions: Windows CE .NET 4.0 and later.
Header: Urlmon.h, Urlmon.idl.
Link Library: Urlmon.lib.
See Also
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