gistfile1.txt

*advchar
    getparam $Free28

    ; if named textbox not enabled, this function just returns
    if %adv_call_state == 0 return

    ; the image -1.png is the no-named textbox
    if $Free28 == "00" mov $Free28, "-1"
    if $Free28 == "99" mov $Free28, "-1"

    ; calculate the OLD filename
    mov $Free27, ":b;textbox\"

    if %textboxType == 0 jumpf
    mov $Free27, ":b;textbox_black\"
    ~

    add $Free27, $Free26
    add $Free27, ".png"

    ; calculate the filename
    mov $Free29, ":b;textbox\"

    if %textboxType == 0 jumpf
    mov $Free29, ":b;textbox_black\"
    ~

    add $Free29, $Free28
    add $Free29, ".png"

    ; only update the window if it is different to the current one. Clear page immediately.
    if $Free27 != $Free29   setwindow2 $Free29 : mov $Free26,$Free28 : gosub *clear_text_and_save_backlog
return