我在‘趋势控件’上加了趋势1、趋势2、趋势3、……趋势8等8根曲线，我现在X轴用的是‘公共X轴’
Y轴我想将趋势1、趋势2、趋势3的Y轴显示出来，其它5根的Y轴隐藏，我怎么用代码实现?
SetPropWord(lpszPictureName,"trend_control","index",0);
SetPropBOOL(lpszPictureName,"trend_control","deletedata",1);
SetPropBOOL(lpszPictureName,"trend_control","Autorangex",0);
SetPropDouble (lpszPictureName,"trend_control","Beginx",0);
SetPropDouble(lpszPictureName,"trend_control","endx",sumtime[z-1]+sumtime[z-1]/10);

SetPropWord(lpszPictureName,"trend_control","index",1);
SetPropBOOL(lpszPictureName,"trend_control","deletedata",1);
SetPropBOOL(lpszPictureName,"trend_control","Autorangex",0);

SetPropWord(lpszPictureName,"trend_control","index",2);
SetPropBOOL(lpszPictureName,"trend_control","deletedata",1);
SetPropBOOL(lpszPictureName,"trend_control","Autorangex",0);

SetPropWord(lpszPictureName,"trend_control","index",3);
SetPropBOOL(lpszPictureName,"trend_control","deletedata",1);
SetPropBOOL(lpszPictureName,"trend_control","Autorangex",0);
SetPropDouble (lpszPictureName,"trend_control","Beginy",0);
SetPropDouble (lpszPictureName,"trend_control","endy",20);
//应该在此加什么代码，才能单独将此Y轴隐藏？
SetPropWord(lpszPictureName,"trend_control","index",4);
SetPropBOOL(lpszPictureName,"trend_control","deletedata",1);
SetPropBOOL(lpszPictureName,"trend_control","Autorangex",0);
SetPropDouble (lpszPictureName,"trend_control","Beginy",0);
SetPropDouble (lpszPictureName,"trend_control","endy",20);
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各位仁兄，希望你们能在百忙之中指点一下，谢谢！