IShellBrowser::GetViewStateStream method (shobjidl_core.h)
Gets an IStream interface that can be used for storage of view-specific state information.
Syntax
HRESULT GetViewStateStream(
DWORD grfMode,
IStream **ppStrm
);
Parameters
grfMode
Type: DWORD
Read/write access of the IStream interface. This may be one of the following values.
STGM_READ
Requests an IStream suitable for reading.
STGM_WRITE
Requests an IStream suitable for writing.
STGM_READWRITE
Requests an IStream suitable for reading and writing.
ppStrm
Type: IStream**
The address that receives the IStream interface pointer.
Return value
Type: HRESULT
Returns S_OK if successful, or a COM-defined error value otherwise.
Remarks
This method is used to save and restore the persistent state for a view (the icon positions, the column widths, and the current scroll position, for example).
Notes to Calling Applications
Use GetViewStateStream when the view is being created to read in the saved view state and also when the view is being closed to save any changes to the view state. Typically, the view calls this method with STGM_READ when creating a view window and with STGM_WRITE when the SaveViewState method of its IShellView interface is called.Notes to Implementers
Each Shell view should have its own view stream. Windows Explorer implements a most recently used (MRU) list of view streams that are stored on a per-user basis in the registry.See also IShellBrowser
Requirements
Requirement | Value |
---|---|
Minimum supported client | Windows XP [desktop apps only] |
Minimum supported server | Windows 2000 Server [desktop apps only] |
Target Platform | Windows |
Header | shobjidl_core.h (include Shobjidl.h) |
DLL | Shell32.dll (version 4.0 or later) |