Just my observation when compiling VST2.4 plugin with Code::Blocks MinGWx64 and VSTGUI on Win10:
VSTGUI 3.0 - no problems
VSTGUI 3.6 - only the background (CFrame) is visible, the rest of controls is not visible (any graphical mode GDI/GDI+)
VSTGUI 4.x - only the background (CFrame) is visible, the rest of the controls is not visible
The rest of the graphical controls (knobs e t c ) does not draw. COptionMenu shows on click but after selection, its text is not drawn also.
All bitmaps are loaded (via check isLoaded () ) and even knob->isVisible() returns true.
Compiling with MSVC solves this issue but still, my question is:
what can the problem be with MinGW+ VSTGUI?