We have made a VST plugin containing combo boxes. When using Reaper as a VST host, the popup menus associated with each combobox are displayed behind my VST gui. Reaper has an “always-on-top” feature for the floating plugin guis, and this seems to be the problem. The plugin editor floats on top of everything, but the popup menu is not added as a child to any editor component and therefore disappears behind.
Is there an easy fix for this? Could the popup menu be a child of the combobox or does that have unwanted side effects?