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Fine tunes the specified channel by scanning for the most precise signal for that channel.
#include "ltmm.h"
| Language | Syntax |
|---|---|
| C | HRESULT IltmmTVTuner_AutoTune(pTV, Channel, pVal) |
| C++ | HRESULT AutoTune(Channel, pVal) |
Pointer to an IltmmTVTuner interface.
Number of the channel to "fine tune".
Pointer to a variable to be updated with a value that indicates whether the signal was found. A nonzero value indicates the signal was found. Zero indicates the signal was not found.
| Value | Meaning |
|---|---|
| S_OK | The function was successful. |
| <> S_OK | An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation. |
This function maps the TV channel to a frequency and searches for the most precise frequency for this channel, in the area. Calling this function for every channel in a region or country allows you to create a table of channel and frequency information. Once all channels in the region or country have been scanned, use IltmmTVTuner::StoreAutoTune to save the channel information.
For more detailed information, refer to the Microsoft documentation for IAMTVTuner::AutoTune.
Win32, x64.
| Language | Example |
|---|---|
| C | IltmmTVTuner::AutoTune |
| C++ | IltmmTVTuner::AutoTune |
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