/// <summary>
/// Creates a virtual desktop.
/// </summary>
public static VirtualDesktop Create()
{
VirtualDesktopHelper.ThrowIfNotSupported();
var desktop = ComInternal.CreateDesktopW();
var wrapper = wrappers.GetOrAdd(desktop.GetID(), _ => new VirtualDesktop(desktop));
return(wrapper);
}
/// <summary>
/// Remove the virtual desktop, specifying a virtual desktop that display after destroyed.
/// </summary>
public void Remove(VirtualDesktop fallbackDesktop)
{
if (fallbackDesktop == null)
{
throw new ArgumentNullException();
}
ComInternal.RemoveDesktop(this.ComObject, fallbackDesktop.ComObject);
}
internal static IEnumerable <VirtualDesktop> GetDesktopsInternal()
{
var desktops = ComInternal.GetDesktops();
var count = desktops.GetCount();
for (var i = 0u; i < count; i++)
{
object ppvObject;
desktops.GetAt(i, typeof(IVirtualDesktop).GUID, out ppvObject);
var desktop = (IVirtualDesktop)ppvObject;
var wrapper = wrappers.GetOrAdd(desktop.GetID(), _ => new VirtualDesktop(desktop));
yield return(wrapper);
}
}
/// <summary>
/// Returns a virtual desktop on the right.
/// </summary>
public VirtualDesktop GetRight()
{
IVirtualDesktop desktop;
try
{
desktop = ComInternal.GetAdjacentDesktop(this.ComObject, AdjacentDesktop.RightDirection);
}
catch (COMException ex) //when (ex.Match(HResult.TYPE_E_OUTOFBOUNDS))
{
return(null);
}
var wrapper = wrappers.GetOrAdd(desktop.GetID(), _ => new VirtualDesktop(desktop));
return(wrapper);
}
/// <summary>
/// Returns the virtual desktop of the specified identifier.
/// </summary>
public static VirtualDesktop FromId(Guid desktopId)
{
VirtualDesktopHelper.ThrowIfNotSupported();
IVirtualDesktop desktop;
try
{
desktop = ComInternal.FindDesktop(desktopId);
}
catch (COMException ex) //when (ex.Match(HResult.TYPE_E_ELEMENTNOTFOUND))
{
return(null);
}
var wrapper = wrappers.GetOrAdd(desktop.GetID(), _ => new VirtualDesktop(desktop));
return(wrapper);
}
/// <summary>
/// Returns the virtual desktop that the specified window is located.
/// </summary>
public static VirtualDesktop FromHwnd(IntPtr hwnd)
{
VirtualDesktopHelper.ThrowIfNotSupported();
if (hwnd == IntPtr.Zero)
{
return(null);
}
IVirtualDesktop desktop;
try
{
var desktopId = ComManager.GetWindowDesktopId(hwnd);
desktop = ComInternal.FindDesktop(desktopId);
}
catch (COMException ex) //when (ex.Match(HResult.REGDB_E_CLASSNOTREG, HResult.TYPE_E_ELEMENTNOTFOUND))
{
return(null);
}
var wrapper = wrappers.GetOrAdd(desktop.GetID(), _ => new VirtualDesktop(desktop));
return(wrapper);
}
/// <summary>
/// Display the virtual desktop.
/// </summary>
public void Switch()
{
ComInternal.SwitchDesktop(this.ComObject);
}
