VisualStyleRenderer.Handle Property

 

Gets a unique identifier for the current class of visual style elements.

Namespace:   System.Windows.Forms.VisualStyles
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public IntPtr Handle { get; }

Property Value

Type: System.IntPtr

An IntPtr that identifies a set of data that defines the class of elements specified by Class.

Exception Condition
InvalidOperationException

The operating system does not support visual styles.

-or-

Visual styles are disabled by the user in the operating system.

-or-

Visual styles are not applied to the client area of application windows.

This property is used internally by the VisualStyleRenderer methods. If the class of elements specified by the Class property is not defined by the current visual style, then this property returns IntPtr.Zero.

This property value is invalidated when the visual style of the operating system changes, or when the user disables visual styles. If you access this property directly, your code should query this property again to get a new handle when the SystemEvents.UserPreferenceChanged event is raised with the UserPreferenceChangedEventArgs.Category property value of UserPreferenceCategory.VisualStyle.

.NET Framework
Available since 2.0
Return to top
Show: