public static int GetNameDispId(UnsafeNativeMethods.IDispatch obj)
{
int num = -1;
string[] rgszNames = null;
ComNativeDescriptor instance = ComNativeDescriptor.Instance;
bool succeeded = false;
instance.GetPropertyValue(obj, "__id", ref succeeded);
if (succeeded)
{
rgszNames = new string[] { "__id" };
}
else
{
instance.GetPropertyValue(obj, -800, ref succeeded);
if (succeeded)
{
num = -800;
}
else
{
instance.GetPropertyValue(obj, "Name", ref succeeded);
if (succeeded)
{
rgszNames = new string[] { "Name" };
}
}
}
if (rgszNames != null)
{
int[] rgDispId = new int[] { -1 };
Guid empty = Guid.Empty;
if (System.Windows.Forms.NativeMethods.Succeeded(obj.GetIDsOfNames(ref empty, rgszNames, 1, SafeNativeMethods.GetThreadLCID(), rgDispId)))
{
num = rgDispId[0];
}
}
return num;
}