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ContentElement.ReleaseMouseCapture Method

Releases the mouse capture, if this element held the capture.

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

public void ReleaseMouseCapture()



If this element did not hold the capture, calling this method has no effect. Consider checking the value of IsMouseCaptured before you call this method.

The following handler captures or releases mouse capture according to mouse button states. The example shows how to use captured mouse movement for alternative purposes other than moving the mouse pointer in the UI.

private void MouseDownHandler(object sender, MouseButtonEventArgs e)
    ContentElement el = (ContentElement)sender;
    if (!el.IsEnabled) return;
    e.Handled = true;
    _point = e.MouseDevice.GetPosition(el); 

private void MouseUpHandler(object sender, MouseButtonEventArgs e)
    ContentElement el = (ContentElement)sender;
    if (!el.IsEnabled) return;
    e.Handled = true;

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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