Sets flags to control the behavior of the dialog.
Syntax
HRESULT SetOptions(
  [in] FILEOPENDIALOGOPTIONS fos
);
Parameters
- fos [in] 
 Type: FILEOPENDIALOGOPTIONS- One or more of the FILEOPENDIALOGOPTIONS values. 
Return value
Type: HRESULT
If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.
Remarks
Generally, this method should take the value that was retrieved by IFileDialog::GetOptions and modify it to include or exclude options by setting the appropriate flags.
Requirements
| Minimum supported client | Windows Vista, Windows 7 [desktop apps only] | 
| Minimum supported server | Windows Server 2008 R2 [desktop apps only] | 
| Header | Shobjidl_core.h | 
| IDL | Shobjidl.idl |