Try it this way.
[code]from javax.imageio import ImageIO
from java.net import URL
url16 = URL(“http://localhost:8088/main/system/images/Builtin/icons/16/add2.png”)
url32 = URL(“http://localhost:8088/main/system/images/Builtin/icons/32/add2.png”)
url48 = URL(“http://localhost:8088/main/system/images/Builtin/icons/48/add2.png”)
icons = []
icons.append(ImageIO.read(url16))
icons.append(ImageIO.read(url32))
icons.append(ImageIO.read(url48))
win = system.gui.getParentWindow(event)
parent = win
while parent is not None:
win = parent
parent = win.getParent()
win.setIconImages(icons)[/code]