Looking at the Win32 C++ code it appears that the tooltips for listboxs need more work before they are usable.
The main problem is that the item index+1 is used for the toolinfo id. This means inserting items can overwrite an existing id.
The clear listbox is not working as the loop removes item zero each time. As the gadget index is used for the tips it just removes tip 0 many times. The Win32ListBox remove function also is calculating the tip id from index not index+1 as is done in the other functions.
I have also noticed after insert items that the tips can get out of sync after the listbox slider is used.
The main problem is that the item index+1 is used for the toolinfo id. This means inserting items can overwrite an existing id.
The clear listbox is not working as the loop removes item zero each time. As the gadget index is used for the tips it just removes tip 0 many times. The Win32ListBox remove function also is calculating the tip id from index not index+1 as is done in the other functions.
I have also noticed after insert items that the tips can get out of sync after the listbox slider is used.