I want to swap a bitmap in symbol with another bitmap,and I found the the function
swapElement
This is what I have tried
var elements = item.timeline.layers[0].frames[0].elements;//item is the symbol
for (var j = 0; j < elements.length; j++) {
var el = elements[j];
if (el.instanceType == "bitmap") {
el.selected = true;//this line not work, so I want a way to make the element selected
dom.swapElement(targetName);//targetName is another bitmap name that I wanted
}
}