public static void UnregisterTab(IntPtr child)
{
if (IsInitialized)
{
taskbar.UnregisterTab(child);
}
}
/// <summary>Removes a thumbnail from an application's preview group when that tab or document is closed in the application.</summary>
/// <param name="childWindow">
/// The tab window whose thumbnail is being removed. This is the same value with which the thumbnail was registered as part the group
/// through RegisterTab. This value is required and cannot be NULL.
/// </param>
public static void UnregisterTab(IWin32Window childWindow)
{
Validate7OrLater();
if (childWindow == null)
{
throw new ArgumentNullException(nameof(childWindow));
}
taskbar4?.UnregisterTab(childWindow.Handle);
}