IVideo.Gamma Property
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IVideoGamma Property

Index into the Gammas array for the selected camera gamma.

Namespace:  ASCOM.DeviceInterface
Assembly:  ASCOM.DeviceInterfaces (in ASCOM.DeviceInterfaces.dll) Version: (
short Gamma { get; set; }

Property Value

Type: Int16
Short integer index for the current camera gamma in the Gammas string array.

Return Value

Type: Int16
Index into the Gammas array for the selected camera gamma
NotConnectedExceptionMust throw an exception if the information is not available. (Some drivers may require an active connection in order to retrieve necessary information from the camera.)
InvalidValueExceptionMust throw an exception if not valid.
PropertyNotImplementedExceptionMust throw an exception if Gamma is not supported.
Gamma can be used to adjust the gamma setting of the camera, if supported. There are two typical usage scenarios:
  • Discrete gamma video cameras will return a 0-based array of strings - Gammas, which correspond to different discrete gamma settings supported by the camera. Gamma must be set to an integer in this range. GammaMin and GammaMax must thrown an exception if this mode is used.
  • Adjustable gain video cameras - GammaMin and GammaMax return integers, which specify the valid range for Gamma.

The driver must default Gamma to a valid value.

See Also