private unsafe Guid GetPropertyPage(Ole32.DispatchID dispid)
{
try
{
Oleaut32.IPerPropertyBrowsing ippb = owner.GetPerPropertyBrowsing();
if (ippb is null)
{
return(Guid.Empty);
}
Guid rval = Guid.Empty;
if (ippb.MapPropertyToPage(dispid, &rval).Succeeded())
{
return(rval);
}
}
catch (COMException)
{
}
catch (Exception t)
{
Debug.Fail(t.ToString());
}
return(Guid.Empty);
}
private unsafe void EnsureArrays()
{
if (_arraysFetched)
{
return;
}
_arraysFetched = true;
try
{
// Marshal the items.
Oleaut32.IPerPropertyBrowsing ppb = _owner.GetPerPropertyBrowsing();
int itemCount = 0;
Debug.Assert(_cookies is not null && _names is not null, "An item array is null");
if (_names.Length > 0)
{
object[] values = new object[_cookies.Length];
uint cookie;
Debug.Assert(_cookies.Length == _names.Length, "Got uneven names and cookies");
// For each name item, we ask the object for it's corresponding value.
for (int i = 0; i < _names.Length; i++)
{
cookie = _cookies[i];
if (_names[i] is null || !(_names[i] is string))
{
Debug.Fail($"Bad IPerPropertyBrowsing item [{i}], name={_names?[i] ?? "(unknown)"}");
continue;
}
using var var = new Oleaut32.VARIANT();
HRESULT hr = ppb.GetPredefinedValue(_target.Dispid, cookie, &var);
if (hr == HRESULT.S_OK && var.vt != Ole32.VARENUM.EMPTY)
{
values[i] = var.ToObject();
}
itemCount++;
}
// Pass the data to the base Com2Enum object.
if (itemCount > 0)
{
string[] strings = new string[itemCount];
Array.Copy(_names, 0, strings, 0, itemCount);
PopulateArrays(strings, values);
}
}
}
catch (Exception ex)
{
Debug.Fail($"Failed to build IPerPropertyBrowsing editor. {ex.GetType().Name}, {ex.Message}");
}
}
private unsafe void EnsureArrays()
{
if (arraysFetched)
{
return;
}
arraysFetched = true;
try
{
// marshal the items.
object[] nameItems = nameMarshaller.Items;
object[] cookieItems = valueMarshaller.Items;
Oleaut32.IPerPropertyBrowsing ppb = (Oleaut32.IPerPropertyBrowsing)owner.GetPerPropertyBrowsing();
int itemCount = 0;
Debug.Assert(cookieItems != null && nameItems != null, "An item array is null");
if (nameItems.Length > 0)
{
object[] valueItems = new object[cookieItems.Length];
int cookie;
Debug.Assert(cookieItems.Length == nameItems.Length, "Got uneven names and cookies");
// for each name item, we ask the object for it's corresponding value.
for (int i = 0; i < nameItems.Length; i++)
{
cookie = (int)cookieItems[i];
if (nameItems[i] == null || !(nameItems[i] is string))
{
Debug.Fail("Bad IPerPropertyBrowsing item [" + i.ToString(CultureInfo.InvariantCulture) + "], name=" + (nameItems == null ? "(unknown)" : nameItems[i].ToString()));
continue;
}
using var var = new Oleaut32.VARIANT();
HRESULT hr = ppb.GetPredefinedValue(target.Dispid, (uint)cookie, &var);
if (hr == HRESULT.S_OK && var.vt != Ole32.VARENUM.EMPTY)
{
valueItems[i] = var.ToObject();
}
itemCount++;
}
// pass this data down to the base Com2Enum object...
if (itemCount > 0)
{
string[] strings = new string[itemCount];
Array.Copy(nameItems, 0, strings, 0, itemCount);
base.PopulateArrays(strings, valueItems);
}
}
}
catch (Exception ex)
{
Debug.Fail("Failed to build IPerPropertyBrowsing editor. " + ex.GetType().Name + ", " + ex.Message);
}
}
