Is it possible to increase a window's border area for resizing the window with the mouse?

Question

For a simple WPF window, is it possible to increase the area where the mouse can resize the window? For example:

The border is too thin. I tried the following workarounds but only the edge part of the window acts as an area for resizing:

1. Increasing BorderThickness of the window
2. Setting WS_THICKFRAME

Answer 1

You can set WindowStyle="None" and set borderbrush and borderthickness to achieve what you expect.

<Window x:Class="WpfApplication1.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="100" Width="100" WindowStyle="None" BorderThickness="3" BorderBrush="Black" ResizeMode="CanResizeWithGrip" >
 Hello World
</Window>

Hope it works for you!

Or use Wpf custom window, Windows edge resize feature

Wpf custom window, Windows edge resize feature