public void AttachToHost(PSHost host)
{
if (this.host != null)
{
return;
}
if (host == null)
{
return;
}
const BindingFlags flags = BindingFlags.Instance | BindingFlags.NonPublic;
// When PowerShell went open source, they renamed the private variables to have _underbarPrefixes
if (host.Version >= new Version(6, 0))
{
object uiRef = host.GetType().GetField("_internalUIRef", flags)?.GetValue(host);
object ui = uiRef.GetType().GetProperty("Value", flags).GetValue(uiRef, null);
FieldInfo externalUIField = ui.GetType().GetField("_externalUI", flags);
externalUI = (PSHostUserInterface)externalUIField.GetValue(ui);
externalUIField.SetValue(ui, this);
}
else
{
// Try the WindowsPowerShell version:
object uiRef = host.GetType().GetField("internalUIRef", flags).GetValue(host);
object ui = uiRef.GetType().GetProperty("Value", flags).GetValue(uiRef, null);
FieldInfo externalUIField = ui.GetType().GetField("externalUI", flags);
externalUI = (PSHostUserInterface)externalUIField.GetValue(ui);
externalUIField.SetValue(ui, this);
}
this.host = host;
}
public void DetachFromHost()
{
if (host == null)
{
return;
}
const BindingFlags flags = BindingFlags.Instance | BindingFlags.NonPublic;
// When PowerShell went open source, they renamed the private variables to have _underbarPrefixes
if (host.Version >= new Version(6, 0))
{
object uiRef = host.GetType().GetField("_internalUIRef", flags)?.GetValue(host);
object ui = uiRef.GetType().GetProperty("Value", flags).GetValue(uiRef, null);
FieldInfo externalUIField = ui.GetType().GetField("_externalUI", flags);
if (externalUIField.GetValue(ui) == this)
{
externalUIField.SetValue(ui, externalUI);
}
}
else
{
// Try the WindowsPowerShell version:
object uiRef = host.GetType().GetField("internalUIRef", flags).GetValue(host);
object ui = uiRef.GetType().GetProperty("Value", flags).GetValue(uiRef, null);
FieldInfo externalUIField = ui.GetType().GetField("externalUI", flags);
if (externalUIField.GetValue(ui) == this)
{
externalUIField.SetValue(ui, externalUI);
}
}
externalUI = null;
host = null;
}
public void AttachToHost(PSHost host)
{
if (this.host != null)
{
return;
}
if (host == null)
{
return;
}
const BindingFlags flags = BindingFlags.Instance | BindingFlags.NonPublic;
object uiRef = host.GetType().GetField("internalUIRef", flags).GetValue(host);
object ui = uiRef.GetType().GetProperty("Value", flags).GetValue(uiRef, null);
FieldInfo externalUIField = ui.GetType().GetField("externalUI", flags);
externalUI = (PSHostUserInterface)externalUIField.GetValue(ui);
externalUIField.SetValue(ui, this);
this.host = host;
}
public void DetachFromHost()
{
if (host == null)
{
return;
}
const BindingFlags flags = BindingFlags.Instance | BindingFlags.NonPublic;
object uiRef = host.GetType().GetField("internalUIRef", flags).GetValue(host);
object ui = uiRef.GetType().GetProperty("Value", flags).GetValue(uiRef, null);
FieldInfo externalUIField = ui.GetType().GetField("externalUI", flags);
if (externalUIField.GetValue(ui) == this)
{
externalUIField.SetValue(ui, externalUI);
}
externalUI = null;
host = null;
}