I have DLLs that export TFrame subclasses to EXE maim program in C++ Builder 2009. There is a TPageControl object in TFrame subclass. When TFrame subclass is loaded to EXE main program and displayed in TForm, no matter I change the tab of the TPageControl object in TFrame subclass, the content of the TPageControl remains the same, but active tab is updated.
I never met this kind of problem when I use TPageControl directly in EXE main program. Does it have anything to do with DLL and VCL limitations?