- This function is implemented by FrameXML in FrameXML/ContainerFrame.lua.
- The frame that is responsible for opening the bags. Doesn't affect the operation of this function but sets an internal variable that affects other container frame functions. Can be nil.
- I use this in a simple macro that quickly opens all bags. This is useful since when activated, it will open the remnant bags that did not opened when talking to a vendor or opening your bank account without closing the backpack.
- Note that this function was changed in patch 4.1. It used to take a boolean parameter called forceOpen. Addons that hook OpenAllBags need to modify their hooked version to mirror this change.