When SetPartial is called to update a subset of strings in a text batch, the new string must be the same length as the old one. This property defines the minimum length of each string in the text batch. If a shorter string is passed, it is padded with spaces???

int 
SetPartialStringLength { 
get; 
set; }

Property 
SetPartialStringLength 
As 
Integer

property 
int 
SetPartialStringLength {
        
int 
get ();
        
void 
set (
int 
value);
}