}
for(int i = 0; i < zwindows.size(); i++) {
ZWindow *zwindow = zwindows[i];
if( !zwindow->is_running() ) continue;
if( zwindow->zgui->playback_engine )
}
for(int i = 0; i < zwindows.size(); i++) {
ZWindow *zwindow = zwindows[i];
if( !zwindow->is_running() ) continue;
if( zwindow->zgui->playback_engine )