I was seeing the code of merged_cells example from "C:\lazarus\examples\gridexamples\merged_cells".
So, I tried to make my own program, but I have this error message in the compiler:
"main.pas(9,20) Fatal: no puedo encontrar mcGrid utilizado por main del Inspector de Proyecto."
(it cannot find mcGrid used by main...)
I add this "mcGrid" to "uses"
uses
Classes, SysUtils, Forms, Controls, Graphics, Dialogs, StdCtrls, MaskEdit,
ExtCtrls, Grids, mcGrid;
But it doesn't compile.