GpioChangeCounter(GpioPin) Constructor
Definition
Important
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Creates a new GpioChangeCounter associated with the specified pin. Only a single GpioChangeCounter may be associated with a pin at any given time.
public:
GpioChangeCounter(GpioPin ^ pin); GpioChangeCounter(GpioPin const& pin);public GpioChangeCounter(GpioPin pin);function GpioChangeCounter(pin)Public Sub New (pin As GpioPin)Parameters
- pin
- GpioPin
The pin on which to count changes. This pin must have been opened in Exclusive mode, and cannot be associated with another GpioChangeCounter.
Remarks
The following exceptions can be thrown by this method:
- E_POINTER - The pin passed in is null.
- HRESULT_FROM_WIN32(ERROR_SHARING_VIOLATION) - The pin is already associated with a change counter. That change counter must be disposed before the pin can be associated with a new change counter.
- E_ACCESSDENIED - The pin is not opened in Exclusive mode.