How to get the row and column number of a cell using a LibreOffice Basic function

I would like to write a Libreoffice-Basic function that takes into account the row and column of the cell where the function is placed. I suppose my problem would be solved if I could define a function such as:

Function MyRowFun()
    MyRowFun = ?????
End Function

replicating the built-in function ROW(). In other words, once I typed "=MyRowFun()" in any given cell, that cell would display the same as if I had typed "=ROW()".

It would also be nice to be able to get the corresponding sheet name.

Thanks very much for any help, such as pointers to online manuals.

PS: After spending a lot of time searching, I have found many places explaining how to identify the cell under the selection, using ThisComponent.CurrentSelection.AbsoluteName, but I care about the cell where the formula is placed, rather than the currently selected cell.

Solution

For anyone else who comes across this question, the solution is given in the first comment by @JohnSUN:

If you know that SHEET(), ROW() and COLUMN() without parameters can return sheet-row-column numbers, then just pass them as parameters when calling your UDF.

The poster was hoping for a different type of solution but there isn't any other way.