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