once you wrote something on the image from a textbox and click on abutton, it writes the text
but if you erase the textbox value and write again, it did not erase the text on the image.
Did you click on a button to re-draw the new image with the new text?
1. Enter string into textbox and click button.
2. Script wrote something on the image.
3. Script shows new textbox and button.
4. Change text in textbox and click button.
5. 2-5 repeats