<Window x:Class="WpfApp47.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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"
xmlns:local="clr-namespace:WpfApp47"
mc:Ignorable="d" WindowState="Maximized"
Title="MainWindow" Height="450" Width="800">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition/>
</Grid.RowDefinitions>
<ToolBar Grid.Row="0">
<Button Content="Copy" FontSize="16" Margin="4" Padding="4" Command="Copy" ToolTip="Copy the selected text to the clipboard"/>
<Button Content="Paste" FontSize="16" Margin="4" Padding="4" Command="Paste">
<Button.ToolTip>
<ToolTip>
<Border CornerRadius="10" BorderThickness="2"
BorderBrush="Black" Padding="4" Background="LightBlue">
<Grid Width="120">
<TextBlock FontSize="15" TextWrapping="Wrap"
Text="Paste text from the clipboard"/>
</Grid>
</Border>
</ToolTip>
</Button.ToolTip>
</Button>
<Button Content="Undo" Command="Undo" FontSize="16" Margin="4" Padding="4"
ToolTipService.HasDropShadow="False">
<Button.Resources>
<Style TargetType="ToolTip">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="BorderBrush" Value="Transparent"/>
</Style>
</Button.Resources>
<Button.ToolTip>
<Border CornerRadius="10" BorderThickness="2" BorderBrush="Black"
Padding="4" Background="LightBlue">
<Grid>
<TextBlock FontSize="15" TextWrapping="Wrap"
Text="Undo the last action"/>
</Grid>
</Border>
</Button.ToolTip>
</Button>
</ToolBar>
<TextBox Grid.Row="1" AcceptsReturn="True" FontSize="14"
VerticalScrollBarVisibility="Auto"
HorizontalScrollBarVisibility="Auto"/>
</Grid>
</Window>
