IUpdateDownloader::Download method
Starts a synchronous download of the content files that are associated with the updates.
Syntax
HRESULT Download(
[out] IDownloadResult **retval
);
Parameters
- retval [out]
An IDownloadResult interface that contains result codes for the download.
Return value
Returns S_OK if successful. Otherwise, returns a COM or Windows error code.
This method can also return the following error codes.
| Return code | Description |
|---|---|
| WU_E_INVALID_OPERATION | The computer cannot access the update site. |
| WU_E_NO_UPDATE | Windows Update Agent (WUA) does not have updates in the collection. |
| WU_E_NOT_INITIALIZED | Windows Update Agent is not initialized. |
Remarks
This method returns WU_E_INVALID_OPERATION if the object that is implementing the interface is locked down.
This method returns WU_E_NO_UPDATE if the Updates property of the IUpdateDownloader interface is not set. This method also returns WU_E_NO_UPDATE if the Updates property is set to an empty collection.
This method returns SUS_E_NOT_INITIALIZED if the download job does not contain updates.
Requirements
Minimum supported client |
Windows XP, Windows 2000 Professional with SP3 [desktop apps only] |
Minimum supported server |
Windows Server 2003, Windows 2000 Server with SP3 [desktop apps only] |
Header |
Wuapi.h |
IDL |
Wuapi.idl |
Library |
Wuguid.lib |
DLL |
Wuapi.dll |