/// <summary>
/// Returns AutomationPeer if one exists.
/// The AutomationPeer may not exist if not yet created by Automation infrastructure
/// or if this element is not supposed to have one.
/// </summary>
internal AutomationPeer GetAutomationPeer()
{
VerifyAccess();
if (HasAutomationPeer)
{
return(AutomationPeerField.GetValue(this));
}
return(null);
}
/// <summary>
/// Called by the Automation infrastructure or Control author
/// to make sure the AutomationPeer is created. The element may
/// create AP or return null, depending on OnCreateAutomationPeer override.
/// </summary>
internal AutomationPeer CreateAutomationPeer()
{
VerifyAccess(); //this will ensure the AP is created in the right context
AutomationPeer ap = null;
if (HasAutomationPeer)
{
ap = AutomationPeerField.GetValue(this);
}
else
{
ap = OnCreateAutomationPeer();
if (ap != null)
{
AutomationPeerField.SetValue(this, ap);
HasAutomationPeer = true;
}
}
return(ap);
}