Tchart打印预览

uses   TeePrevi;     procedure TFMainChart.AtnPrintExecute(Sender: TObject); begin   myChart.PrintOrientation(poLandscape);//poPortrait end;     procedure TFMainChart.AtnPreviewExecute(Sender: TObject); begin TeePreview(self,myChart);   //ChartPreview(self,myChart); end;   Tchart打印预览