Linux Grid Metrics

[Blaazen]

A few related questions.

I need double-click on a grid header and to know coords of header cell [0, 0], [1, 0] ... but StringGrid1DblClick(Sender: TObject); gives only Sender.
Grids have public functions MouseTocell but it requires mouse coords related to grid (where [0,0] is top left corner) and I have only mouse.CursorPos .
Is there any standart way ? (maybe I can do it using OnMouseUp)

And is there linux equivalent for windows.GetSystemMetrics ?

[circular]

You can handle the MouseMove event and store at this moment where the mouse is.

[Blaazen]

Thanks.

Finally I will use StringGrid1HeaderClick(Sender: TObject; IsColumn: Boolean;  Index: Integer);
I will store IsColumn and Index to some global variable and reuse them on DoubleClick, so it is not so much unefficient.