The standard stringgrid lets the user 'select' a block of cells ie the 'selection property.
I need to modify this property so that the user can only select horizontal or vertical cells, depending in which direction he moved the mouse. I am not too familiar with creating components even with the delphi books I cannot manage to get what I want. I have been advised that I need to modify the stringgrid source ie Grids.pas but I really need a grid based on this
Can you help with the detailed code for a new grid and for calling the new function