ent a 
<span class="code">UUID</span> structure passed by reference, so become <span class="code">UUID *</span>.</li><li>Note that the <span class="code">HRESULT</span> signature affects the way code is generated.  A 
<span class="code">HRESULT</span> is either a success code or an error code, and in VB failure gets mapped
to throwing an error (success codes are ignored).  If you need to find out the return value you can change
any method returning a <span class="code">HRESULT</span> to a <span class="code"