class config_http : public config
{
	static BOOL CALLBACK DialogProc(HWND wnd,UINT msg,WPARAM wp,LPARAM lp)
	{
		switch(msg)
		{
		case WM_INITDIALOG:
			uSetDlgItemInt(wnd,IDC_BUFSIZE,cfg_buffer_size/1024,0);
			uSendDlgItemMessage(wnd,IDC_PREBUF_START,TBM_SETRANGE,0,MAKELONG(1,100));
			uSendDlgItemMessage(wnd,IDC_PREBUF_UNDERRUN,TBM_SETRANGE,0,MAKELONG(1,100));
			uSendDlgItemMessage(wnd,IDC_PREBUF_START,TBM_SETPOS,1,cfg_prebuffer_start);
			uSendDlgItemMessage(wnd,IDC_PREBUF_UNDERRUN,TBM_SETPOS,1,cfg_prebuffer_underrun);
			uSetDlgItemText(wnd,IDC_STATUS_PREBUF1,string_printf("%u%%",(int)cfg_prebuffer_start));
			uSetDlgItemText(wnd,IDC_STATUS_PREBUF2,string_printf("%u%%",(int)cfg_prebuffer_underrun));
			uSendDlgItemMessageText(wnd,IDC_PROXY_MODE,CB_ADDSTRING,0,"Don't use proxy");
			uSendDlgItemMessageText(wnd,IDC_PROXY_MODE,CB_ADDSTRING,0,"Use proxy only for port 80 connections");
			uSendDlgItemMessageText(wnd,IDC_PROXY_MODE,CB_ADDSTRING,0,"Use proxy for all connections");
			uSendDlgItemMessage(wnd,IDC_PROXY_MODE,CB_SETCURSEL,cfg_proxy_mode,0);
			g_proxy_sync.enter();
			uSetDlgItemText(wnd,IDC_PROXY_URL,cfg_proxy_url);
			g_proxy_sync.leave();
			uSendDlgItemMessage(wnd,IDC_ICY_METADATA,BM_SETCHECK,cfg_icy_metadata,0);
			break;
		case WM_COMMAND:
			switch(wp)
			{
			case (CBN_SELCHANGE<<16) | IDC_PROXY_MODE:
				cfg_proxy_mode = uSendMessage((HWND)lp,CB_GETCURSEL,0,0);
				break;
			case (EN_CHANGE<<16)|IDC_BUFSIZE:
				cfg_buffer_size = uGetDlgItemInt(wnd,IDC_BUFSIZE,0,0) * 1024;
				break;
			case (EN_CHANGE<<16)|IDC_PROXY_URL:
				g_proxy_sync.enter();
				cfg_proxy_url = string_utf8_from_window((HWND)lp);
				g_proxy_sync.leave();
				break;
			case IDC_ICY_METADATA:
				cfg_icy_metadata = uSendMessage((HWND)lp,BM_GETCHECK,0,0);
				break;
			}
			break;
		case WM_HSCROLL:
			switch(uGetWindowLong((HWND)lp,GWL_ID))
			{
			case IDC_PREBUF_START:
				cfg_prebuffer_start = uSendMessage((HWND)lp,TBM_GETPOS,0,0);
				uSetDlgItemText(wnd,IDC_STATUS_PREBUF1,string_printf("%u%%",(int)cfg_prebuffer_start));
				break;
			case IDC_PREBUF_UNDERRUN:
				cfg_prebuffer_underrun = uSendMessage((HWND)lp,TBM_GETPOS,0,0);
				uSetDlgItemText(wnd,IDC_STATUS_PREBUF2,string_printf("%u%%",(int)cfg_prebuffer_underrun));
				break;
			}
			break;
		}
		return 0;
	}
	virtual HWND create(HWND parent)
	{
		return uCreateDialog(IDD_CONFIG,parent,DialogProc);
	}
	virtual const char * get_name() {return "HTTP Reader";}
	virtual const char * get_parent_name() {return "Components";}
};

static service_factory_single_t<config,config_http> foo2;

• Preferences pages are now identified by GUID instead of by name, so you will have to add get_guid() and change get_parent_name() to get_parent_guid(). The GUIDs for some standard pages are available as static members of the preferences_page class.
• 0.9 allows to reset settings for individual pages. To support that you have to return true from reset_query() and implement reset(); the framework will destroy you preferences page window before calling reset() and recreate it afterwards.
• You can add your own branches to the preferences tree for use as a parent to multiple pages which might be in different components. To do that, create a preferences_branch_factory. The branch introduced by this will display as a an empty page if selected and will only display, if it has children. You can have multiple declarations for a single preferences branch (usually in different components); the framework will merge branches with the same GUID and display (at most) one instance.