diff --git a/src/gui_qt/data/point_select.py b/src/gui_qt/data/point_select.py
index 377ee38..bd8002a 100644
--- a/src/gui_qt/data/point_select.py
+++ b/src/gui_qt/data/point_select.py
@@ -33,9 +33,9 @@ class PointSelectWidget(QtWidgets.QWidget, Ui_Form):
         self.peaktable.itemDoubleClicked.connect(self.editing_started)
 
     def keyPressEvent(self, e):
-        if e.key() == QtCore.Qt.Key_Delete:
+        if e.key() == QtCore.Qt.Key.Key_Delete:
             self.remove_points()
-        elif e.key() == QtCore.Qt.Key_F2:
+        elif e.key() == QtCore.Qt.Key.Key_F2:
             self.editing_started()
         else:
             super().keyPressEvent(e)
@@ -102,13 +102,21 @@ class PointSelectWidget(QtWidgets.QWidget, Ui_Form):
 
     @QtCore.pyqtSlot()
     def apply(self) -> dict:
-        ret_dic = {'avg_range': [self.left_pt.value(), self.right_pt.value()],
-                   'avg_mode': {0: 'mean', 1: 'sum', 2: 'integral', 3: 'std'}[self.average_combobox.currentIndex()],
-                   'special': None, 'idx': None,
-                   'xy': (self.xbutton.isChecked(), self.ybutton.isChecked())}
+        ret_dic = {
+            'avg_range': [self.left_pt.value(), self.right_pt.value()],
+            'avg_mode': {0: 'mean', 1: 'sum', 2: 'integral', 3: 'std'}[self.average_combobox.currentIndex()],
+            'special': None,
+            'idx': None,
+            'xy': (self.xbutton.isChecked(), self.ybutton.isChecked()),
+        }
 
         if self.groupBox_2.isChecked():
-            ret_dic['special'] = {0: 'max', 1: 'absmax', 2: 'min', 3: 'absmin'}[self.special_comboBox.currentIndex()]
+            ret_dic['special'] = {
+                0: 'max',
+                1: 'absmax',
+                2: 'min',
+                3: 'absmin'
+            }[self.special_comboBox.currentIndex()]
 
         if len(self.pts) != 0:
             ret_dic['idx'] = self.pts
diff --git a/src/gui_qt/graphs/graphwindow.py b/src/gui_qt/graphs/graphwindow.py
index 405e520..0ea6624 100644
--- a/src/gui_qt/graphs/graphwindow.py
+++ b/src/gui_qt/graphs/graphwindow.py
@@ -539,6 +539,10 @@ class QGraphWindow(QtWidgets.QGraphicsView, Ui_GraphWindow):
 
         if self.graphic.plotItem.sceneBoundingRect().contains(evt.scenePos()) and evt.button() == 1:
             pos = vb.mapSceneToView(evt.scenePos())
+
+            if not _inside_range(pos.x(), pos.y(), vb.viewRange()):
+                return
+
             _x, _y = pos.x(), pos.y()
 
             if self.log[0]:
@@ -854,3 +858,7 @@ class QGraphWindow(QtWidgets.QGraphicsView, Ui_GraphWindow):
         self.set_color(foreground=self._prev_colors[0], background=self._prev_colors[1])
         self._prev_colors = temp
 
+
+def _inside_range(x: float, y: float, ranges: list[list[float]]) -> bool:
+    x_range, y_range = ranges
+    return (x_range[0] <= x <= x_range[1]) and (y_range[0] <= y <= y_range[1])
\ No newline at end of file