E2241 Delphi style classes need virtual destructors (C++)
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Destructors defined in Delphi style classes have to be virtual. Delphi style classes derive directly or indirectly from System::TObject.
Example:
struct__declspec(delphiclass) vclclass1 { ~vclclass1() {} // Error }; struct__declspec(delphiclass) vclclass2 { virtual ~vclclass2() {} // OK };