117 lines
3.7 KiB
Python
117 lines
3.7 KiB
Python
#!/usr/bin/env python
|
|
# -*- coding: utf-8 -*-
|
|
|
|
"""
|
|
Created on 2018年3月13日
|
|
@author: Irony
|
|
@site: https://pyqt.site , https://github.com/PyQt5
|
|
@email: 892768447@qq.com
|
|
@file:
|
|
@description:
|
|
"""
|
|
|
|
import ctypes
|
|
|
|
import win32con
|
|
from PyQt5.QtCore import QThread, pyqtSignal
|
|
from PyQt5.QtWidgets import QWidget, QVBoxLayout, QProgressBar, QPushButton
|
|
from win32process import SuspendThread, ResumeThread
|
|
|
|
|
|
class Worker(QThread):
|
|
valueChanged = pyqtSignal(int) # 值变化信号
|
|
handle = -1
|
|
|
|
def run(self):
|
|
try:
|
|
self.handle = ctypes.windll.kernel32.OpenThread( # @UndefinedVariable
|
|
win32con.PROCESS_ALL_ACCESS, False, int(QThread.currentThreadId()))
|
|
except Exception as e:
|
|
print('get thread handle failed', e)
|
|
print('thread id', int(QThread.currentThreadId()))
|
|
for i in range(1, 101):
|
|
print('value', i)
|
|
self.valueChanged.emit(i)
|
|
QThread.sleep(1)
|
|
|
|
|
|
class Window(QWidget):
|
|
|
|
def __init__(self, *args, **kwargs):
|
|
super(Window, self).__init__(*args, **kwargs)
|
|
layout = QVBoxLayout(self)
|
|
self.progressBar = QProgressBar(self)
|
|
self.progressBar.setRange(0, 100)
|
|
layout.addWidget(self.progressBar)
|
|
self.startButton = QPushButton('开启线程', self, clicked=self.onStart)
|
|
layout.addWidget(self.startButton)
|
|
self.suspendButton = QPushButton(
|
|
'挂起线程', self, clicked=self.onSuspendThread, enabled=False)
|
|
layout.addWidget(self.suspendButton)
|
|
self.resumeButton = QPushButton(
|
|
'恢复线程', self, clicked=self.onResumeThread, enabled=False)
|
|
layout.addWidget(self.resumeButton)
|
|
self.stopButton = QPushButton(
|
|
'终止线程', self, clicked=self.onStopThread, enabled=False)
|
|
layout.addWidget(self.stopButton)
|
|
|
|
# 当前线程id
|
|
print('main id', int(QThread.currentThreadId()))
|
|
|
|
# 子线程
|
|
self._thread = Worker(self)
|
|
self._thread.finished.connect(self._thread.deleteLater)
|
|
self._thread.valueChanged.connect(self.progressBar.setValue)
|
|
|
|
def onStart(self):
|
|
print('main id', int(QThread.currentThreadId()))
|
|
self._thread.start() # 启动线程
|
|
self.startButton.setEnabled(False)
|
|
self.suspendButton.setEnabled(True)
|
|
self.stopButton.setEnabled(True)
|
|
|
|
def onSuspendThread(self):
|
|
if self._thread.handle == -1:
|
|
return print('handle is wrong')
|
|
ret = SuspendThread(self._thread.handle)
|
|
print('挂起线程', self._thread.handle, ret)
|
|
self.suspendButton.setEnabled(False)
|
|
self.resumeButton.setEnabled(True)
|
|
|
|
def onResumeThread(self):
|
|
if self._thread.handle == -1:
|
|
return print('handle is wrong')
|
|
ret = ResumeThread(self._thread.handle)
|
|
print('恢复线程', self._thread.handle, ret)
|
|
self.suspendButton.setEnabled(True)
|
|
self.resumeButton.setEnabled(False)
|
|
|
|
def onStopThread(self):
|
|
self.startButton.setEnabled(False)
|
|
self.suspendButton.setEnabled(False)
|
|
self.resumeButton.setEnabled(False)
|
|
ret = ctypes.windll.kernel32.TerminateThread( # @UndefinedVariable
|
|
self._thread.handle, 0)
|
|
print('终止线程', self._thread.handle, ret)
|
|
self.stopButton.setEnabled(False)
|
|
|
|
def closeEvent(self, event):
|
|
if self._thread.isRunning():
|
|
self._thread.quit()
|
|
# 强制
|
|
# self._thread.terminate()
|
|
del self._thread
|
|
super(Window, self).closeEvent(event)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
import sys
|
|
import os
|
|
|
|
print('pid', os.getpid())
|
|
from PyQt5.QtWidgets import QApplication
|
|
|
|
app = QApplication(sys.argv)
|
|
w = Window()
|
|
w.show()
|
|
sys.exit(app.exec_())
|