IAMTuner::put_CountryCode method (strmif.h)
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The put_CountryCode method sets the country/region code to establish the frequency to use.
Syntax
HRESULT put_CountryCode(
[in] long lCountryCode
);
Parameters
[in] lCountryCode
Value indicating the country/region code.
Return value
Returns an HRESULT value that depends on the implementation of the interface.
Remarks
This method establishes the base frequencies for the given country/region. Use the IAMTVTuner::AutoTune method to determine the exact frequencies for specific regions, unless there are previously cached settings for the new country/region.
Because channels in different countries/regions map to different frequencies, worldwide mapping tables are provided in the appendix International Analog TV Tuning. Override the existing country/region code by selecting the new value from the appendix and passing it in as the parameter for the put_CountryCode method. This is useful when a country/region wants to receive broadcast video from a different national source.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only] |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | strmif.h (include Dshow.h) |
| Library | Strmiids.lib |