I tried to use wxDev C++ for developing Win32 Applications only, no wxWidgets, I noticed that the IDE code completion isn't working on structures defined in the windows header files like CREATESTRUCT. After I declared a variable of type CREATESTRUCT and then try to access its members using the dot '.' operator, no drop-down list of members were shown, even pressing the CTRL+SPACE key combination isn't working. I checked the completion cache and found out that the windows header files are already included but still, the code completion isn't working. It looks like the code completion only works better when creating wxWidgets application but fails on Win32 Project types.