ISwitchV2SwitchStep Method
Returns the step size that this device supports (the difference between successive values of the device).

Namespace: ASCOM.DeviceInterface
Assembly: ASCOM.DeviceInterfaces (in ASCOM.DeviceInterfaces.dll) Version: 6.0.0.0 (6.2.0.2774)
Syntax
Copy
double SwitchStep(
	short id
)

Parameters

id
Type: SystemInt16
The device number (0 to MaxSwitch - 1)

Return Value

Type: Double
The step size for this device.
Exceptions
ExceptionCondition
InvalidValueExceptionIf id is outside the range 0 to MaxSwitch - 1
Remarks

Must be implemented, must not throw MethodNotImplementedException.

SwitchStep, MinSwitchValue and MaxSwitchValue can be used to determine the way the device is controlled and/or displayed, for example by setting the number of decimal places or number of states for a display.

SwitchStep(Int16) must be greater than zero and the number of steps can be calculated as: ((MaxSwitchValue(Int16) - MinSwitchValue(Int16)) / SwitchStep(Int16)) + 1.

The switch range (MaxSwitchValue(Int16) - MinSwitchValue(Int16)) must be an exact multiple of SwitchStep(Int16).

If a two state device cannot report its state, SwitchStep(Int16) should return the value 1.0.

Devices are numbered from 0 to MaxSwitch - 1.

This is a Version 2 method.

See Also