01_ScreenShotOCR/MainWindow.xaml

<Window x:Class="ScreenShotOCR.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:ScreenShotOCR"
        mc:Ignorable="d"
        Title="MainWindow" Height="200" Width="400"
        WindowStyle="None" ResizeMode="NoResize" MouseLeftButtonDown="Window_MouseLeftButtonDown">

    <Grid>
        <Button Width="60" Height="20" Content="Capture" Margin="10,10,330,170" Background="#FF5291FF" BorderBrush="#FF5291FF">
            <Button.Resources>
                <Style TargetType="{x:Type Border}">
                    <Setter Property="CornerRadius" Value="10"/>
                    <Setter Property="Effect">
                        <Setter.Value>
                            <DropShadowEffect Color="Black" Direction="320" ShadowDepth="3" BlurRadius="5" Opacity="0.5" />
                        </Setter.Value>
                    </Setter>
                </Style>
                <Style TargetType="{x:Type Button}">
                    <Style.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <!--<Setter Property="Background" Value="White"/>
                            <Setter Property="BorderBrush" Value="White"/>-->
                            <Setter Property="Foreground" Value="Blue"/>
                        </Trigger>
                    </Style.Triggers>
                </Style>
            </Button.Resources>
        </Button>

        <Button Width="60" Height="20" Content="OCR" Margin="75,10,265,170" Background="#FF52FF89" BorderBrush="#FF52FF89">
            <Button.Resources>
                <Style TargetType="{x:Type Border}">
                    <Setter Property="CornerRadius" Value="10"/>
                    <Setter Property="Effect">
                        <Setter.Value>
                            <DropShadowEffect Color="Black" Direction="320" ShadowDepth="3" BlurRadius="5" Opacity="0.5" />
                        </Setter.Value>
                    </Setter>
                </Style>
                <Style TargetType="{x:Type Button}">
                    <Style.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <!--<Setter Property="Background" Value="White"/>
                            <Setter Property="BorderBrush" Value="White"/>-->
                            <Setter Property="Foreground" Value="Green"/>
                        </Trigger>
                    </Style.Triggers>
                </Style>
            </Button.Resources>
        </Button>
        <Button Width="120" Height="20" Content="Copy to clipboard" Margin="140,10,140,170" Background="#FFFFE752" BorderBrush="#FFFFE752">
            <Button.Resources>
                <Style TargetType="{x:Type Border}">
                    <Setter Property="CornerRadius" Value="10"/>
                    <Setter Property="Effect">
                        <Setter.Value>
                            <DropShadowEffect Color="Black" Direction="320" ShadowDepth="3" BlurRadius="5" Opacity="0.5" />
                        </Setter.Value>
                    </Setter>
                </Style>
                <Style TargetType="{x:Type Button}">
                    <Style.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <!--<Setter Property="Background" Value="White"/>
                            <Setter Property="BorderBrush" Value="White"/>-->
                            <Setter Property="Foreground" Value="Orange"/>
                        </Trigger>
                    </Style.Triggers>
                </Style>
            </Button.Resources>
        </Button>
        <Button Width="60" Height="20" Content="Close" Margin="330,10,10,170" Background="#FFFF5252" BorderBrush="#FFFF5252">
            <Button.Resources>
                <Style TargetType="{x:Type Border}">
                    <Setter Property="CornerRadius" Value="10"/>
                    <Setter Property="Effect">
                        <Setter.Value>
                            <DropShadowEffect Color="Black" Direction="320" ShadowDepth="3" BlurRadius="5" Opacity="0.5" />
                        </Setter.Value>
                    </Setter>
                </Style>
                <Style TargetType="{x:Type Button}">
                    <Style.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <!--<Setter Property="Background" Value="White"/>
                            <Setter Property="BorderBrush" Value="White"/>-->
                            <Setter Property="Foreground" Value="Red"/>
                        </Trigger>
                    </Style.Triggers>
                </Style>
            </Button.Resources>
        </Button>
    </Grid>
</Window>