public bool SwitchDesktop(Desktops dname)
{
f.WriteLine("Switch TO" + Enum.GetName(dname.GetType(), dname));
var desktop = new DesktopHandle(PInvoke.OpenDesktop(Enum.GetName(dname.GetType(), dname), 0, false,
ACCESS_MASK.DESKTOP_CREATEMENU | ACCESS_MASK.DESKTOP_CREATEWINDOW |
ACCESS_MASK.DESKTOP_ENUMERATE | ACCESS_MASK.DESKTOP_HOOKCONTROL |
ACCESS_MASK.DESKTOP_WRITEOBJECTS | ACCESS_MASK.DESKTOP_READOBJECTS |
ACCESS_MASK.DESKTOP_SWITCHDESKTOP | ACCESS_MASK.GENERIC_WRITE));
f.WriteLine("Switch Invalid" + desktop.IsInvalid);
if (desktop.IsInvalid)
{
return(false);
}
if (!PInvoke.SetThreadDesktop(desktop.Handle))
{
f.WriteLine("Switch failed" + Marshal.GetLastWin32Error());
desktop.Dispose();
return(false);
}
m_hDesk.Dispose();
m_hDesk = desktop;
Current_Desktop = dname;
f.WriteLine("Switch Success" + dname);
return(true);
}
public Desktops GetActiveDesktop()
{
using (var s = new DesktopHandle(PInvoke.OpenInputDesktop(0, false, ACCESS_MASK.MAXIMUM_ALLOWED)))
{
return(GetDesktop(s));
}
}
private Desktops GetDesktop(DesktopHandle s)
{
f.WriteLine("Get Desktop Invalid" + s.IsInvalid);
if (s.IsInvalid)
{
return(Desktops.Default);
}
int needed = 0;
string name = string.Empty;
PInvoke.GetUserObjectInformation(s.Handle, PInvoke.UOI_NAME, IntPtr.Zero, 0, ref needed);
// get the name.
IntPtr ptr = Marshal.AllocHGlobal(needed);
bool result = PInvoke.GetUserObjectInformation(s.Handle, PInvoke.UOI_NAME, ptr, needed, ref needed);
f.WriteLine("Get Desktop Result" + result);
name = Marshal.PtrToStringAnsi(ptr);
f.WriteLine("Get Desktop Name" + name);
Marshal.FreeHGlobal(ptr);
if (!result)
{
return(Desktops.Default);
}
if (name == "Default")
{
return(Desktops.Default);
}
else if (name == "Screensaver")
{
return(Desktops.ScreenSaver);
}
else
{
return(Desktops.Winlogon);
}
}
