|Microsoft DirectX 9.0|
The get_FrequencyMapping method returns the Network Provider filter's current frequency table.
HRESULT get_FrequencyMapping( ULONG *pulCount, ULONG **ppulList );
[out] Pointer to a variable that receives the size of the frequency table.
[out] Pointer to a variable that receives the address of the frequency table. The frequency table is an array of size pulCount, allocated by the method. The caller must free the array by calling CoTaskMemFree.
Each entry in the frequency table is a tuning frequency, in kilohertz (kHz).
If the method succeeds, it returns S_OK. If it fails, it returns an error code.