IFolderFilterSite::SetFilter method (shobjidl_core.h)
Exposed by a host to allow clients to pass the host their IUnknown interface pointers.
Syntax
HRESULT SetFilter(
[in] IUnknown *punk
);
Parameters
[in] punk
Type: IUnknown*
A pointer to the client's IUnknown interface. To notify the host to terminate filtering and stop calling your IFolderFilter interface, set this parameter to NULL.
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
After you get a pointer to the host's IFolderFilterSite interface, call this method to pass the host a pointer to your IUnknown interface. The host will then use this pointer to call your QueryInterface method to request a pointer to your IFolderFilter interface. If this call fails, IFolderFilterSite::SetFilter returns E_NOINTERFACEAVAILABLE. If the call is successful, the host will then call the IFolderFilter interface's two methods to determine how to enumerate the contents of the folder.
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows XP [desktop apps only] |
Minimum supported server | Windows Server 2003 [desktop apps only] |
Target Platform | Windows |
Header | shobjidl_core.h (include Shobjidl.h) |
DLL | Shell32.dll |
Σχόλια
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