解决非简体中文下，默认设置配置项，修改参数时左边不提示“恢复”的问题

app/scantool/dialog_add.cpp

@@ -53,6 +53,7 @@ Dialog_Add::Dialog_Add(SANE_Handle devHandle, class MainWindow *mainWnd, const S
 
     m_scanParam = scanParam;
     ui->comboBoxButtonId->setCurrentIndex(m_scanParam.buttonId);
+    ui->comboBoxButtonId->setEnabled(false);
 
     m_formDeviceConfig = new Form_DeviceConfig(devHandle, m_scanParam.deviceConfigs, this);
     connect(this, SIGNAL(closeDevice()), m_formDeviceConfig, SLOT(on_closeDevice()));

modules/twainui/hg_settingdialog.cpp

@@ -2362,7 +2362,8 @@ void hg_settingdialog::updateSchemeManagerUi()
 void hg_settingdialog::updateRestorePushButton()
 {
     gb::sane_config_schm* cfgScheme = new gb::sane_config_schm();
-    cfgScheme = cur_cfg_->get_scheme(comb_->currentText().toStdString().c_str());
+    bool ok = false;
+    cfgScheme = cur_cfg_->get_scheme(to_default_language(comb_->currentText().toStdString().c_str(), &ok));
 
     gb::sane_config_schm* schm = new gb::sane_config_schm();
     updateSchemeFromUi(schm);