::::::救命!::::::::::如何修改了注册表的内容,立即生效. 难道没有高手!:::::救命!:::::::::::::::::; (50分)

var
bufchar;
...
getmem(buf,SizeOfBuf);//
strpcopy(buf,'注册表的主键，例如Software/Microsoft/windows/currentversion/Explorer/ToolBar');
SendMessage(HWND_BROADCAST,WM_SETTINGCHANGE,0,buf);