HandleChangeControlValue
The system calls this virtual method when the control’s value changes.
Declaration
virtual kern_return_t HandleChangeControlValue(float in_control_value);Parameters
- in_control_value:
The float value to set on the control.
Return Value
kIOReturnSuccess on success. Upon success, the control’s value should be updated.
Discussion
The default implementation calls SetControlValue() and returns kIOReturnSuccess. Subclass and override this method to handle changes to this control value and return kIOReturnSuccess upon success.