Examples of errors detected by the V721 diagnostic

V721. The VARIANT_BOOL type is used incorrectly. The true value (VARIANT_TRUE) is defined as -1.

MAME

V721 The VARIANT_BOOL type is utilized incorrectly. The true value (VARIANT_TRUE) is defined as -1. Inspect the first argument. testvpinmame.cpp 351

 virtual HRESULT __stdcall put_HandleKeyboard ( /*[in]*/ VARIANT_BOOL pVal ) = 0; void RunGame(HWND hWnd, IController *pController) { .... pController->put_HandleKeyboard(true); .... }