if (!_analysis || _analysis->channels() == 0) {
gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
gc->DrawText (_message, 32, 32);
if (!_analysis || _analysis->channels() == 0) {
gc->SetFont (gc->CreateFont (*wxNORMAL_FONT));
gc->DrawText (_message, 32, 32);