// Create an atom container to hold the parameters

    // for the effect.

    myErr = QTNewAtomContainer(&gEffectSample);

    BailError(myErr);

    // QTGetEffectsList returns a QTAtomContainer holding a 

    // list of the currently installed effects components

    myErr = QTGetEffectsList(&gEffectList, theSpecCount, theSpecCount, 0);

    BailError(myErr);

    // Ask the user to select an effect. On return, the 

    // gEffectSample atom container holds an effect description 

    // for the effect selected by the user, including the parameter

    // settings. This effect description can then be added

    // to the media of an effect track. You will need to add

    // source atoms to this container for effects that require

    // sources.

    myErr = QTCreateStandardParameterDialog(gEffectList, gEffectSample, 0, &gEffectsDialog);

    BailError(myErr);