Introduction - If you have any usage issues, please Google them yourself
A practical instrument control, the user can set or change functions. The main function as follows: SetNeedleColor (COLORREF colorNeedle) set the target color SetRange (double dMin, double dMax) set the minimum meter maximum SetScaleDecimals (int nDecimals) shows that the accuracy of calibration settings (the median after the decimal point) SetValueDecimals (int nDecimals) set numerical display precision (digits after the decimal point) SetUnits (CString