// rilapi.h
HRESULT RIL_StartDTMF(
HRIL hRil,
LPVOID lpContext,
DWORD dwExecutor,
CHAR ch
);
View the official Windows Driver Kit DDI referenceNo description available.
This topic supports the Windows driver infrastructure and is not intended to be used directly from your code.
hRillpContextdwExecutorchIf this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.