i just want to make with WPF using the XAML such a shape : the shape is in red, kind of box with rectangle like quotation. can you help ? thanks alot.
Here's an attempt at something similar to your diagram. Is it of help to you?
<Grid Width="602">
<Path Stroke="Black" StrokeThickness="2" Fill="#FFFFCC" Data="M 0,50 400,50 450,0 500,50 600,50 600,150 0,150 0,50" />
<Grid Margin="0,50,0,0">
<TextBlock Text="Blah blah blah - blah blah?" TextWrapping="Wrap" FontSize="16" FontWeight="Bold" Margin="10" />
<StackPanel Orientation="Horizontal" HorizontalAlignment="Center" VerticalAlignment="Bottom" Margin="10">
<Button Width="100" Content="Yes" />
<Button Width="100" Content="No" Margin="50,0,0,0" />
</StackPanel>
</Grid>
</Grid>