--- qsampler/trunk/src/qsamplerDevice.cpp	2017/12/12 17:47:43	3401
+++ qsampler/trunk/src/qsamplerDevice.cpp	2018/01/03 13:01:00	3402
@@ -1171,6 +1171,7 @@
 		Qt::DisplayRole).value<DeviceParameterRow>();
 
 	const bool bEnabled = (r.alive) ? !r.param.fix : true;
+	const bool bFix = r.param.fix;
 
 	QString val = (r.alive) ? r.param.value : r.param.defaultv;
 
@@ -1183,6 +1184,7 @@
 				if (val != QString::null)
 					pCheckBox->setChecked(val.toLower() == "true");
 				pCheckBox->setEnabled(bEnabled);
+				pCheckBox->setCheckable(!bFix);
 				return pCheckBox;
 			} else if (r.param.possibilities.count() > 0) {
 				QStringList opts = r.param.possibilities;
@@ -1195,6 +1197,7 @@
 				else
 					pComboBox->setCurrentIndex(pComboBox->findText(val));
 				pComboBox->setEnabled(bEnabled);
+				pComboBox->setEditable(!bFix);
 				return pComboBox;
 			} else if (r.param.type == LSCP_TYPE_INT && bEnabled) {
 				QSpinBox *pSpinBox = new QSpinBox(pParent);
@@ -1207,9 +1210,11 @@
 						r.param.range_max.toInt() : (1 << 24) // or better a higher default max value ?
 				);
 				pSpinBox->setValue(val.toInt());
+				pSpinBox->setReadOnly(bFix);
 				return pSpinBox;
 			} else if (bEnabled) {
 				QLineEdit *pLineEdit = new QLineEdit(val, pParent);
+				pLineEdit->setReadOnly(bFix);
 				return pLineEdit;
 			} else {
 				QLabel *pLabel = new QLabel(val, pParent);