| | Open Sound System |
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Some OSS mixer groups contain only "flat" widgets such as ON/OFF boxes MIXT_ONOFF or enumerated controls MIXT_ENUM that don't require much vertical space. This flag is used to mark such groups. It doesn't make any sense to allocate more vertical space for such groups when the top level GUI window gets made taller by the user. In this way the additional space can be allocated for groups that contain "tall" widgets such as volume sliders.