Query BOM Balloon from drawing
I want to read information inside the BOM Balloon. After few trials on Pro/E UI, I figured out that the balloons are DetailSymbolInstance type of entities. I'm trying to query the type of entities, but it does not work at all.
To query those, I called ListItems(ITEM_DTL_SYM_INSTANCE) and ListDetailItems(DETAIL_SYM_INSTANCE) on the drawing. Both methods return incorrect output. To cross-check, I select the balloon interactively and queried it's type. This type is passed to ListItems and ListDetailItems. Even then I get erronous output.
As a workaround, I called ListDetailItems with null argument, so that it returns all detail entities and checked each one's type. On this, I get only one entity of type DETAIL_SYM_INSTANCE, when there are ~10 balloons in my drawing.
Now I do not know how to access this information. Whether I'm calling the right method on right object? Is there any alternate method to do this? Has it been concluded to be known issue with ProE?

