ここに別の例があります...挿入されたコード#include lt; ChartObjects \ ChartObjectsLines.mqhgt; void PlotVlineAtEight(){静的CChartObjectVLine eight_line; MqlDateTime time_struct; TimeCurrent(time_struct); time_struct.hour = 8; time_struct.min = 0; time_struct.sec = 0; datetime time = StructToTime(time_struct); if(eight_line.ChartId()lt; 0)eight_line.Create(0、eight_line、0,0); if(eight_line.Time(0)!= time)eight_line.Time(0、time); }