SystemTrayMenu/UserInterface/NumericUpDown.xaml

<?xml version="1.0" encoding="UTF-8"?>
<!-- Copyright (c) 2022-2023 Peter Kirmeier -->
<UserControl xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
             xmlns:stm="clr-namespace:SystemTrayMenu"
             x:Class="SystemTrayMenu.UserInterface.NumericUpDown"
             mc:Ignorable="d" d:Height="21" Margin="1,1,5,1" Width="76">
    <UserControl.Resources>
        <Style TargetType="{x:Type Button}">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Button}">
                        <Border x:Name="Border" Margin="0" Padding="0" BorderThickness="1" BorderBrush="{TemplateBinding BorderBrush}">
                            <ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsMouseOver" Value="True">
                                <Setter Property="BorderBrush" Value="{x:Static stm:MenuDefines.ColorSelectedItemBorder}" TargetName="Border" />
                                <Setter Property="Background" Value="{StaticResource ButtonHoverColor}" TargetName="Border" />
                                <Setter Property="Opacity" Value="0.9" TargetName="Border" />
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </UserControl.Resources>

    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="1*" />
            <RowDefinition Height="1*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="18" />
        </Grid.ColumnDefinitions>

        <TextBox Grid.Row="0" Grid.Column="0" Grid.RowSpan="2" x:Name="txtbox" x:FieldModifier="private" VerticalContentAlignment="Center" Text="0" Margin="0,0,1,0"
                 PreviewTextInput="Txtbox_PreviewTextInput" DataObject.Pasting="Txtbox_Pasting" PreviewMouseWheel="Txtbox_PreviewMouseWheel" TextChanged="Txtbox_TextChanged"/>
        <Button Grid.Row="0" Grid.Column="1" Margin="0" Padding="0" Click="ButtonUp_Click" MinWidth="0">
            <Polygon Points="2,4 6,1 10,4" Stroke="{x:Static stm:MenuDefines.ColorForeground}" Fill="{x:Static stm:MenuDefines.ColorForeground}" />
        </Button>
        <Button Grid.Row="1" Grid.Column="1" Margin="0" Padding="0" Click="ButtonDown_Click" MinWidth="0">
            <Polygon Points="2,1 10,1 6,4" Stroke="{x:Static stm:MenuDefines.ColorForeground}" Fill="{x:Static stm:MenuDefines.ColorForeground}" />
        </Button>
    </Grid>
</UserControl>