Forums | NoesisGUI

Hi!
I had quite a problem with this function: void Brush::SetOpacity(float opacity);

I think that the implementation of this is quite different form what average person would guess. At least I would guess that SetOpacity(0.5f) would set opacity to ~0x7F, SetOpacity(1.0f) would set it to ~0xFF etc... The actual behavior is SetOpacity(0.5f) sets opacity to "xaml defined opacity" * 0.5

I would say it deserves better documentation (the current description "Gets/Sets Opacity" leaves me quite confused).

cheers,
matejr5

Yes, we wil improve the documentation text of Brush properties to better explain their meaning.

The Brush.Opacity property is used to control opacity of the brush in a generic way, no matter which kind of brush you are using: SolidColorBrush, LinearGradientBrush, RadialGradientBrush, ImageBrush... That opacity value is used during rendering, it doesn't modify other brush properties.