// 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;
}