Provides class handling for the TouchDown routed event that occurs when a touch presses inside this element.
Protected Overridable Sub OnTouchDown ( _
e As TouchEventArgs _
The OnTouchDown method has no default implementation. Override OnTouchDown in a derived class to handle the TouchDown event. Be sure to call the base class’s OnTouchDown method so that base classes receive the event.
Supported in: 4.6, 4.5, 4
.NET Framework Client Profile
Supported in: 4
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.