Change Pins from VSS to DVDD and vice versa in the Schematic

Hi All,

I am trying to change the pin names and the net names in the schematic.

I am trying the following code for changing the pin name:-

cv=geGetWindowCellView()
    allPins=setof(x cv~>shapes x~>pin)
foreach(x1 allPins
if(rexMatchp("VSS" x1~>pin~>name)
then
rexCompile( "^[A-Z]$")
rexReplace( x1~>pin~>name "DVDD" 0)))

This is working fine for the layout but in Schematic it is not changing anything. 

Can anyone please suggest something, Any other approach will also work.

Thanks

Utkarsh