Below is a method that can be used to replace WR Replace when replacing 4D Write with 4D Write Pro.
The method uses WP Get text and Position to find a specific string in the 4D Write Pro document referenced by a pointer. An optional pointer to a related 4D Write Pro Range object can be passed to tell the method where to perform the search.

// Method: WP_Replace C_POINTER($wpArea_p;$1) C_TEXT($oldStr_t;$2) C_TEXT($newStr_t;$3) C_POINTER($4) If (Count parameters>2)    $wpArea_p:=$1    $oldStr_t:=$2    $newStr_t:=$3       C_LONGINT($start_l;$pos_l)    C_TEXT($text_t)    C_OBJECT($wpRange_o)       $text:=WP Get text($wpArea_p->)       If (Count parameters=4)       $wpRange_o:=OB Copy($4->)    Else       $wpRange_o:=WP Text range($wpArea_p->;wk start text;wk start text)    End if    $start_l:=$wpRange_o.end       $pos_l:=Position($oldStr_t;$text;$start_l)       If ($pos_l>0)       $wpRange_o:=WP Text range($wpArea_p->;$pos_l;$pos_l+Length($oldStr_t))       WP SET TEXT($wpRange_o;$newStr_t;wk replace)    End if End if

Example of using the method:

WP_Replace(->$wpDoc_ob;"Morning";"Afternoon")

The example above will find the first instance of the word "Morning" from the start of the document and replace it with "Afternoon".