Slider ValueChanged Args can't be double?

Wanderer · 07 Dec 2018, 18:21

I want connect event when slider change value. I have this in C# generated by VisualStudio when I add event in WPF

        private void ValueChanged_MSpeed(object sender, RoutedPropertyChangedEventArgs<double> e)
        {

        }

I create C++ code

bool ConnectEvent(Noesis::BaseComponent* source, const char* event, const char* handler) override
	{
		// ...
		NS_CONNECT_EVENT(Noesis::Slider, ValueChanged, ValueChanged_MSpeed);
		return false;
	}
void grid_UrhoControl::ValueChanged_MSpeed(Noesis::BaseComponent * object, const Noesis::RoutedPropertyChangedEventArgs<double>& args);

But in compile time it throw lot of errors, where is mentioned float. Then I decide change double in to float, and now it compile without error. Why is there used float instead double?

07 Dec 2018, 20:01

In Noesis all properties are float for performance reasons.
You can see that in FrameworkElement's Width and Height, RangeBase Value, and many others.

So you will need some conditional code there to use the appropriate signature for Noesis and WPF.

Sorry for the inconveniences.

Wanderer · 07 Dec 2018, 20:28

Ok, thanks for explanation. Maybe it should be mentioned in Documentation.

Slider ValueChanged Args can't be double? Topic is solved

Slider ValueChanged Args can't be double?

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