In a Delphi 6 app, how do I programmatically detect if a resource is available?

I have a .res file containing a number of bitmaps, and my app needs to work out the best one to use for a given situation. I would like to be able to test whether the resource that it "wants" is actually available in the resource file that is linked into the app. If I use the code below, and the resource is not available in the file, I get a message from one of the Borland units saying something like "Resource C733KPL not found".  I could keep a table of string names and refer to that, but surely there's a neater way of asking if a resource is available without causing an error message to be shown to the user?

try
        LoadFromResourceName(hInstance,UseBmpResource);
      finally
        ...
      end;

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