Customizing Border of the ChromelessWindow in WPF Chromeless Window

BorderBrush

The Borders of the resizable window can be painted by using the ResizeBorderBrush property.

To set the ResizeBorderBrush property, use the below code

<syncfusion:ChromelessWindow x:Class="Chromelesswindow.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="ChromelessWindow" Height="350" Width="525" ResizeBorderBrush="Maroon" syncfusion:SkinStorage.VisualStyle="Metro"     
x:Name="_chromelessWindow"    xmlns:syncfusion="clr-namespace:Syncfusion.Windows.Shared;assembly=Syncfusion.Shared.WPF" >
<Grid>
</Grid>
</syncfusion:ChromelessWindow>
this.ResizeBorderBrush = new SolidColorBrush(Colors.Maroon);
Me.ResizeBorderBrush = New SolidColorBrush(Colors.Maroon)

WPF ChromelessWindow border color customized

BorderThickness

To set the thickness for the Resizable border, use ResizableBorderThickness property of the ChromelessWindow. This property virtually sets the region for the resize pointer to appear. Hence, greater the region, easier it is to resize.

To set this property, use the following code.

<syncfusion:ChromelessWindow x:Class="Chromelesswindow.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="ChromelessWindow" Height="350" Width="525" ResizeBorderThickness="8"  syncfusion:SkinStorage.VisualStyle="Metro"     
x:Name="_chromelessWindow"    xmlns:syncfusion="clr-namespace:Syncfusion.Windows.Shared;assembly=Syncfusion.Shared.WPF" >
<Grid>
</Grid>
</syncfusion:ChromelessWindow>
this.ResizeBorderThickness = new Thickness(8);
Me.ResizeBorderThickness = New Thickness(8)

WPF ChromelessWindow border thickness customized