// This function deselects all MIDI renderers from
// the specified play object.
void DisplayMidiRenderers(IltmmPlay *pPlay)
{
IltmmRenderers *pRenderers = NULL;
IltmmRenderer *pRenderer = NULL;
long lCount;
// try to get the MIDI renderers object
HRESULT hr = pPlay->get_MidiRenderers(&pRenderers);
if(FAILED(hr) || pRenderers == NULL)
return;
// get the count of renderers
pRenderers->get_Count(&lCount);
for(int i=0; i<lCount; i++)
{
// get the current renderer and deselect it
pRenderers->Item(i, &pRenderer);
pRenderer->put_Selected(VARIANT_FALSE);
// release the current renderer
pRenderer->Release();
}
// release the renderers object
pRenderers->Release();
}
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