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VisualTreeHelper.GetXSnappingGuidelines Method

Returns an X-coordinate (vertical) guideline collection.

Namespace: System.Windows.Media
Assembly: PresentationCore (in presentationcore.dll)

public static DoubleCollection GetXSnappingGuidelines (
	Visual reference
)
public static DoubleCollection GetXSnappingGuidelines (
	Visual reference
)
public static function GetXSnappingGuidelines (
	reference : Visual
) : DoubleCollection
You cannot use methods in XAML.

Parameters

reference

The Visual whose X-coordinate guideline collection is returned.

Return Value

The X-coordinate guideline collection of the Visual.

Pixel snapping is the process in which content layout is fixed so that object edges are rendered on device-specific pixels. The WPF graphics system uses device-independent units to enable resolution and device independence. Each device independent pixel automatically scales with the system's dots per inch (dpi) setting. This provides WPF applications proper scaling for different dpi settings and makes the application automatically dpi-aware.

However, this dpi independence can create irregular edge rendering due to anti-aliasing. These artifacts, commonly seen as blurry, or "soft" edges, can occur when the location of an edge falls in the middle of a device pixel rather than between device pixels. To address this issue, WPF provides a way for object edges in a visual tree to "snap" to device pixels through pixel snapping, eliminating the soft edges produced by anti-aliasing.

For more information, see Pixel Snapping in WPF Applications.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0
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