This works similarly to how our shell stores its settings from a software design standpoint.
- Add settings.cpp file and ShellSettings structure to load and save settings.
- Add a registry value to hivedef.inf for the locked toolbar state.
This prevents a bug where the associated registry key cannot be opened or saved to.
- Add new BWM_SETTINGCHANGE window message to refresh the UI on setting changes
and send it to every open window when saving settings to the registry.
- Add new BWM_GETSETTINGSPTR window message to share the shellbrowser settings
structure pointer with child windows and toolbars.
CBaseBarSite: Ask the CBaseBar to close itself when the x button is pressed.
CBaseBar: Hide the bar and inform its site that it is closing when it gets the close command.
CShellBrowser: Cache the guid of the current vertical bar and use it to report correct command status to the toolbar.
Also implement toggling the Folders, Favorites, History and search commands.
CInternetToolbar: Query the Folders and Search command status from the site so that they can be properly be shown as pressed.
