根据三个单元格中的RGB值自己制作单元格颜色

Question

I have no idea why this code doesn't work.

Function colorme(Red As Integer, Green As Integer, Blue As Integer)
    Application.Caller.Interior.color = RGB(Red, Green, Blue)
End Function

I want to make it work in spreadsheet like:

__red__|_green_|_blue__|_color_|_
____50_|_____0_|____60_|#purple|_

But the #purple is actually purple, using colorme(A2,B2,C2).

Answer 1

A user-defined function cannot change any properties of a cell except the value of the cell that contains the formula. You could write a subroutine to change the colors of the cells, but unless I'm mistaken, the way you're trying isn't possible.