BugFix: Fix High CPU Occupation. It's because the XCTL_Background_Service.vi 's while loop has no time delay control. I add a "wait for integral multiple ms", set value to 40(or 50), to set the refresh rate to 25Hz(20Hz).
Add 游标图例, and it's drag function normally.
I firstly want to use attri node to move cursor info graph, but labview did not provide this node, WTF!!!!