creat a dynamic stamp with signature field

Hi, everyone,

is there a way to create a stamp with a signature field? I have already managed to create a stamp with a text field and a date field. However, the command for a signature field is not clear to me.

Text field code:

if((event.source.forReal) && (event.source.stampName == "Fertiger_Stempel"))

{

 var cText = app.response

  ({

   cQuestion: "Bitte den Text für den Stempel eingeben",

   cTitle: "Text für Stempel",

   cLabel: "Inhalt: "

  });

if (cText && cText.length)

 {

event.value=cText;

 }

}

 Here is an example of what it should look like