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The EmptyFoldermethod deletes all messages and subfolders from a folder without deleting the folder itself.
Syntax
HRESULT EmptyFolder ( ULONG ulUIParam, LPMAPIPROGRESS lpProgress, ULONG ulFlags ); |
Parameters
- ulUIParam
-
[in] Ignored.
- lpProgress
-
[in] Ignored.
- ulFlags
-
[in] Ignored.
Return Value
This method returns the standard values E_INVALIDARG, E_OUTOFMEMORY, E_UNEXPECTED, and E_FAIL, as well as the following:
- S_OK
-
Indicates success.
- MAPI_E_NO_SUPPORT
-
The method was called on a Search Folder.
- MAPI_W_PARTIAL_COMPLETION
-
The method was called on the root folder of the message store, and it is possible that not all messages or subfolders were deleted. When this warning is returned, the call should be handled as successful.
Remarks
When EmptyFolder is unable to complete, do not assume that no work was done. EmptyFolder might have been able to delete some of the folder's contents before encountering the error.
EmptyFolderis not supported for Search Folders. If you attemtp to use it on one, it returns MAPI_E_NO_SUPPORT.
Use the DeleteFoldermethod if you want to ensure that subfolders that contain messages do not get deleted.
Requirements
Header | mapidefs.h |
Library | cemapi.lib |
Windows Mobile | Pocket PC for Windows Mobile Version 5.0 and later, Smartphone for Windows Mobile Version 5.0 and later |