启用高DPI缩放

ui_main.py

@@ -11,7 +11,7 @@ import ctypes
 # import numpy.ctypeslib as npct
 # import serial
 # import serial.tools.list_ports
-from PyQt5 import QtWidgets
+from PyQt5 import QtWidgets,QtCore
 from PyQt5.QtGui import QIcon
 from PyQt5.QtCore import QSize, QTimer, pyqtSignal
 from PyQt5.QtWidgets import (QApplication, QListWidgetItem, QMessageBox,
@@ -289,6 +289,9 @@ class Pyqt5_Cut_psd(QtWidgets.QMainWindow, Ui_Form):
 
 
 if __name__ == '__main__':
+    # 启用高DPI缩放
+    QtWidgets.QApplication.setAttribute(QtCore.Qt.AA_EnableHighDpiScaling, True)
+
     app = QtWidgets.QApplication(sys.argv)
     myshow = Pyqt5_Cut_psd()
     myshow.show()