DC_Initlizer/AwInitilizer/HintDialog.xaml

<Window
    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:local="clr-namespace:AwInitilizer"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    Title="HintDialog"
    Width="600"
    Height="270"
    ResizeMode="NoResize"
    Topmost="True"
    WindowStartupLocation="CenterOwner"
    WindowStyle="None"
    mc:Ignorable="d"
    x:Class="AwInitilizer.HintDialog">
    <Border BorderBrush="Gray" BorderThickness="2">
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="30" />
                <RowDefinition Height="*" />
                <RowDefinition Height="auto" />
            </Grid.RowDefinitions>

            <Grid Grid.Row="0" Background="Gray">
                <Label
                    x:Name="uxTitle"
                    Content="Message"
                    Foreground="White" />
            </Grid>

            <Grid
                x:Name="uxCancelContainer"
                Grid.Row="2"
                Height="70">
                <Button
                    Width="100"
                    Height="50"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    Click="Button_Click">
                    <Label x:Name="uxBtnText" Content="Cancel" />
                </Button>
            </Grid>

            <StackPanel
                Grid.Row="1"
                VerticalAlignment="Center"
                Orientation="Vertical">
                <Image
                    x:Name="uxImage"
                    Width="100"
                    Height="100"
                    Visibility="Collapsed" />
                <TextBlock
                    x:Name="uxConentText"
                    HorizontalAlignment="Center"
                    VerticalAlignment="Center"
                    Text="Test Messge"
                    FontSize="24"
                    Foreground="Black"
                    TextWrapping="Wrap" />
            </StackPanel>
        </Grid>
    </Border>
</Window>