Applies To:
  • CitectSCADA 3.00

In the Colour Names and Codes List in Citect Help system -1 is listed as 'no change'. When I want to use it with the Plot functions I get an invalid argument error. Could you tell me which Plot functions or which arguments of Plot functions will accept -1 as a colour value? 

The only argument of all Plot functions that accepts -1 as a colour value is nFill. The other colour arguments, ie. HorGridCol, VerGridCol, FrameCol,PenCol and MarkerCol do not accept -1.