float TempValue=GetTagFloat("NewTag_temp");
char szBuffer[20];
sprintf( szBuffer,"Input number:%f",TempValue);
if ( nChar==13 )//if press enter
{
int xRet = MessageBox(NULL,szBuffer,"确认窗口",MB_YESNOMB_ICONQUESTIONMB_SYSTEMMODAL);//message
if ( xRet == IDYES )//confirm operate
{
SetTagFloat("NewTag",TempValue);// set data
}
}