// Get a cached property value for this custom property
protected object GetCachedPropertyValue(UiaPropertyInfoHelper propInfo)
{
var param = new UiaParameterHelper(propInfo.UiaType);
PatternInstance.GetProperty(propInfo.Index, 1 /* fCached */, param.GetUiaType(), param.Data);
return(param.Value);
}
private void SetPropertyRegistrationInfo(UiaPropertyInfoHelper prop)
{
var propFieldName = prop.Data.pProgrammaticName + "Property";
var field = GetType().GetField(propFieldName, BindingFlags.Static | BindingFlags.Public);
if (field == null)
{
throw new ArgumentException(string.Format("Field {0} not found on the type", propFieldName));
}
if (field.FieldType == typeof(int))
{
field.SetValue(null, prop.PropertyId);
}
else if (field.FieldType == typeof(AutomationProperty))
{
if (!_usedInWpf)
{
throw new ArgumentException("You can't use AutomationPattern registration info because you passed usedInWpf: false in constructor");
}
field.SetValue(null, AutomationProperty.LookupById(prop.PropertyId));
}
else
{
throw new ArgumentException("Fields for properties should be either of type int of AutomationProperty");
}
}
private static AutomationProperty RegisterProperty(UiaPropertyInfoHelper property)
{
var automationPropertyType = typeof(AutomationProperty);
var registerMethod = automationPropertyType.GetMethod("Register", BindingFlags.NonPublic | BindingFlags.Static);
using (Dispatcher.CurrentDispatcher.DisableProcessing())
return((AutomationProperty)registerMethod.Invoke(null, new object[] { property.Guid, property.Data.pProgrammaticName }));
}
private void CallProperty(IInvocation invocation, UiaPropertyInfoHelper propHelper, bool cached)
{
// it is call for CurrentXxx property
var param = new UiaParameterHelper(propHelper.UiaType);
NativeMethods.WrapUiaComCall(() => _patternInstance.GetProperty(propHelper.Index, cached ? 1 : 0, propHelper.UiaType, param.Data));
object value = param.Value;
if (invocation.Method.ReturnType == typeof(AutomationElement))
{
value = AutomationElement.Wrap((IUIAutomationElement)value);
}
invocation.ReturnValue = value;
}
private static AutomationProperty RegisterProperty(UiaPropertyInfoHelper property)
{
var automationPropertyType = typeof(AutomationProperty);
var registerMethod = automationPropertyType.GetMethod("Register", BindingFlags.NonPublic | BindingFlags.Static);
using (Dispatcher.CurrentDispatcher.DisableProcessing())
return (AutomationProperty)registerMethod.Invoke(null, new object[] { property.Guid, property.Data.pProgrammaticName });
}
/// <summary>
/// Add a property to this pattern
/// </summary>
/// <param name="property"></param>
public void AddProperty(UiaPropertyInfoHelper property)
{
_properties.Add(property);
}
// Get a current property value for this custom property
protected object GetCurrentPropertyValue(UiaPropertyInfoHelper propInfo)
{
var param = new UiaParameterHelper(propInfo.UiaType);
PatternInstance.GetProperty(propInfo.Index, 0 /* fCached */, param.GetUiaType(), param.Data);
return param.Value;
}
private void CallProperty(IInvocation invocation, UiaPropertyInfoHelper propHelper, bool cached)
{
// it is call for CurrentXxx property
var param = new UiaParameterHelper(propHelper.UiaType);
NativeMethods.WrapUiaComCall(() => _patternInstance.GetProperty(propHelper.Index, cached ? 1 : 0, propHelper.UiaType, param.Data));
object value = param.Value;
if (invocation.Method.ReturnType == typeof(AutomationElement))
value = AutomationElement.Wrap((IUIAutomationElement)value);
invocation.ReturnValue = value;
}
/// <summary>
/// Add a property to this pattern
/// </summary>
/// <param name="property"></param>
public void AddProperty(UiaPropertyInfoHelper property)
{
_properties.Add(property);
}
