C# Avalonia 12- Drawing - OpacityMask

OpacityMask.axaml代码

<Window xmlns="https://github.com/avaloniaui"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"Height="313.6" Width="317.6"x:Class="AvaloniaUI.OpacityMask"Title="OpacityMask"><Window.Background><ImageBrush Source="avares://AvaloniaUI/Resources/Images/grandpiano.jpg"></ImageBrush></Window.Background><Grid Margin="10,50"><Button Background="Purple" FontSize="14" FontWeight="Bold"><Button.OpacityMask><LinearGradientBrush StartPoint="0,0" EndPoint="100%,0%"><GradientStop Offset="0" Color="Black"></GradientStop><GradientStop Offset="1" Color="Transparent"></GradientStop></LinearGradientBrush></Button.OpacityMask><Button.Content>A Partially Transparent Button</Button.Content></Button></Grid>
</Window>

OpacityMask.axaml.cs代码

using Avalonia;
using Avalonia.Controls;
using Avalonia.Markup.Xaml;namespace AvaloniaUI;public partial class OpacityMask : Window
{public OpacityMask(){InitializeComponent();}
}

运行效果