diff --git a/modules/twainui/hg_settingdialog.cpp b/modules/twainui/hg_settingdialog.cpp
index da3020c7..3f0153bd 100644
--- a/modules/twainui/hg_settingdialog.cpp
+++ b/modules/twainui/hg_settingdialog.cpp
@@ -815,6 +815,9 @@ void hg_settingdialog::createUI()
                 m_list_getOpt.append(QPair<int, const void*>(id, opt));
 //                iniRead(md5(opt->title), id, lineEdit);
 
+                bool readOnly = IS_CAP_READONLY(opt->cap);
+                lineEdit->setReadOnly(readOnly);
+
                 lineEdit->setText(QString::fromStdString(cur_val));
                 connect(lineEdit, SIGNAL(textChanged(const QString&)), this, SLOT(slot_lineEditInput()));
                 break;