Control.IsHandleCreated Property
.NET Framework 4.5
Gets a value indicating whether the control has a handle associated with it.
Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Property Value
Type: System.Booleantrue if a handle has been assigned to the control; otherwise, false.
Use the IsHandleCreated property to determine whether CreateHandle has been called.
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.