KSPROPERTY_TUNER_MODE_CAPS_S - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// ksmedia.h
typedef struct {
KSPROPERTY Property;
ULONG Mode;
ULONG StandardsSupported;
ULONG MinFrequency;
ULONG MaxFrequency;
ULONG TuningGranularity;
ULONG NumberOfInputs;
ULONG SettlingTime;
ULONG Strategy;
} KSPROPERTY_TUNER_MODE_CAPS_S, *PKSPROPERTY_TUNER_MODE_CAPS_S;
View the official Windows Driver Kit DDI referenceNo description available.
The KS_PROPERTY_TUNER_MODE_CAPS_S structure describes the capabilities of TV and radio tuner devices.
PropertySpecifies an initialized KSPROPERTY structure that describes the property set, property ID, and request type.
ModeSpecifies the tuner mode that the caller is requesting capability information about. It can be one of the following tuner modes from the KSPROPERTY_TUNER_MODES enumeration that is defined in ksmedia.h:
| Flag | Meaning |
|---|---|
| KSPROPERTY_TUNER_MODE_TV | Indicates that the tuner is capable of tuning analog broadcast or cable television channels. |
| KSPROPERTY_TUNER_MODE_FM_RADIO | Indicates that the tuner is capable of tuning FM radio channels. |
| KSPROPERTY_TUNER_MODE_AM_RADIO | Indicates that the tuner is capable of tuning AM radio channels. |
| KSPROPERTY_TUNER_MODE_DSS | Indicates that the tuner is capable of tuning DSS channels. |
| KSPROPERTY_TUNER_MODE_ATSC | Indicates that the tuner is capable of tuning Advanced Television Systems Committee broadcasts (Digital TV for the United States) or other digital television standard. |
StandardsSupportedDescribes the analog video standards supported. If Mode is set to KSPROPERTY_TUNER_MODE_TV, this member may be set to one or more (logically ORed) values from the KS_AnalogVideoStandard enumeration.
MinFrequencySpecifies the lowest frequency supported by the tuner. This value is in hertz (Hz).
MaxFrequencySpecifies the highest frequency supported by the tuner. This value is in hertz (Hz).
TuningGranularitySpecifies the smallest possible step size between two settings of the tuning frequency. This value is in hertz (Hz).
NumberOfInputsSpecifies the number of inputs on the tuner.
SettlingTimeSpecifies the time, in milliseconds, for a new frequency setting to become stable.
StrategySpecifies the tuning method. This member must be set to only one of the values from the KS_TUNER_STRATEGY enumeration.
The minidriver fills in the mode capabilities for the requested tuner mode.