You didn't specify where you found the methods, but to be precise the list can be found in vlccontrol.h: // IVLCControl methods STDMETHODIMP play(void); STDMETHODIMP get_Visible(VARIANT_BOOL *visible); STDMETHODIMP put_Visible(VARIANT_BOOL visible); STDMETHODIMP pause(void); STDMETHODIMP stop(void);...