func createHandler(f func(h *C.handler) C.int) (*C.handler, error) {
h := C.newHandler()
if err := result(f(h)); err != nil {
C.handlerFree(h)
return nil, err
}
return h, nil
}
func (p *Phidget) unsetOnEventHandler(t eventType, h **C.handler) {
C.unsetOnEventHandler(p.handle, C.eventType(t))
C.handlerFree(*h)
*h = nil
}
func (p *Phidget) unsetOnErrorHandler() {
C.unsetOnErrorHandler(p.handle)
C.handlerFree(p.onErrorHandler)
p.onErrorHandler = nil
}
func (i *InterfaceKit) unsetOnChangeHandler(t onChangeType, h **C.handler) {
C.unsetOnChangeHandler(i.ifkHandle, C.onChangeType(t))
C.handlerFree(*h)
*h = nil
}
func (i *IR) unsetOnRawDataHandler() {
C.unsetOnCodeHandler(i.handle)
C.handlerFree(i.onRawDataHandler)
i.onRawDataHandler = nil
}
func (i *IR) unsetOnLearnHandler() {
C.unsetOnCodeHandler(i.handle)
C.handlerFree(i.onLearnHandler)
i.onLearnHandler = nil
}