python程序监听windows窗口热键(快捷键)

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/lantuxin/article/details/82385548

参考网站：

https://docs.microsoft.com/en-us/windows/desktop/api/winuser/nf-winuser-registerhotkey

https://blog.csdn.net/lsjweiyi/article/details/79137931

快捷键的实现，主要是为了在实现自己python程序中的功能时，能通过快捷键触发，比如快捷键触发截屏程序。

因此，可以采用一个线程用于监听并处理程序快捷键消息，另一个线程处理截屏功能的程序，程序停止和截屏触发都可通过一个全局变量控制。

实现代码如下：

! /usr/bin/env python3
# -*- coding: utf-8 -*-
import os
import win32gui
import win32con
import win32api
import ctypes
import ctypes.wintypes
import threading

class myScreenShot(threading.Thread):
    def __init__(self,name):
        threading.Thread.__init__(self)
        self.name = name
    def run(self):
        print ("\n***start of "+str(self.name)+"***\n")
        sreenShotMain()
        print ("\n***end of "+str(self.name)+"***\n")
class myHotKey(threading.Thread):
    def __init__(self,name):
        threading.Thread.__init__(self)
        self.name = name
    def run(self):
        print ("\n***start of "+str(self.name)+"***\n")
        hotKeyMain()
        print ("\n***end of "+str(self.name)+"***\n")

def sreenShotMain():
    global shotControl_command
    global exitControl_command
    while(True):
        if exitControl_command==True:
            exitControl_command=False
            print("exit this program!")
            return
        if shotControl_command==True:
            #screen shot 
            print("ScreenShot program is replaced by print")
            shotControl_command=False

def hotKeyMain():
    global shotControl_command
    global exitControl_command
    user32 = ctypes.windll.user32
    while(True):
        if not user32.RegisterHotKey(None, 98, win32con.MOD_WIN, win32con.VK_F9):#win+f9=screenshot
            print("Unable to register id", 98)
        if not user32.RegisterHotKey(None, 99, win32con.MOD_WIN, win32con.VK_F10):#win+f10=exit program
            print("Unable to register id", 99)
        try:
            msg = ctypes.wintypes.MSG()
            if user32.GetMessageA(ctypes.byref(msg), None, 0, 0) != 0:
                if msg.message == win32con.WM_HOTKEY:
                    if msg.wParam == 99:
                        exitControl_command = True
                        return
                    elif msg.wParam == 98:
                        shotControl_command = True
                user32.TranslateMessage(ctypes.byref(msg))
                user32.DispatchMessageA(ctypes.byref(msg))
        finally:
            del msg
            user32.UnregisterHotKey(None, 98)
            user32.UnregisterHotKey(None, 99)

if __name__=="__main__":
    thread_screenShot = myScreenShot("thread_screenShot") 
    thread_hotKey = myHotKey("thread_hotKey")
    thread_screenShot.start()
    thread_hotKey.start()

    thread_hotKey.join()
    thread_screenShot.join()

截屏程序后续再写！！！