一、界面开发 #设置主界面def set_init_window(self): # 去掉tkinter默认的标题 self.tk.title('') # 隐藏默认图标 self.tk.iconbitmap(self.icon_path()) #获取屏幕的宽度 screewidth = self.tk.winfo_screenwidth() #获取屏幕高度 screeheight = self.tk.winfo_screenheight() width = int((screewidth - 500) / 2) height = int((screeheight - 300) / 2) # 设置主界面的大小和默认位置 self.tk.geometry(f'500x100+{width}+{height}') #添加开始录制按钮，点击之后开启两个线程：一个录屏、一个监听键盘 btn1 = tkinter.button(self.tk, width=5, height=1, text='开始', command=lambda:[threading.thread(target=self.video_record).start(),threading.thread(target=self.start_listen).start()]) btn1.pack() # 设置按钮位置 btn1.place(x=110, y=50, anchor='n') #开启新线程设置录屏范围 btn2 = tkinter.button(self.tk, width=15, height=1, text='设置录制区域', command=lambda:threading.thread(target=self.set_range).start()) btn2.pack() btn2.place(x=230, y=50, anchor='n')#生成透明的icon图标def icon_path(self): icon = (b'\x00\x00\x01\x00\x01\x00\x10\x10\x00\x00\x01\x00\x08\x00h\x05\x00\x00' b'\x16\x00\x00\x00(\x00\x00\x00\x10\x00\x00\x00 \x00\x00\x00\x01\x00' b'\x08\x00\x00\x00\x00\x00@\x05\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00' b'\x00\x01\x00\x00\x00\x01') + b'\x00' * 1282 + b'\xff' * 64 _, icon_path = tempfile.mkstemp() with open(icon_path, 'wb') as icon_file: icon_file.write(icon) return icon_path
二、录屏参数设置1.设置录屏范围#设置录屏范围def set_range(self): #self.init_window.withdraw() #隐藏窗口 self.tk.state('icon')#窗口最小化 screewidth = self.tk.winfo_screenwidth() screeheight = self.tk.winfo_screenheight() self.newframe = tkinter.toplevel(self.tk,width=screewidth,height=screeheight,bg='white')#开启新窗口 self.newframe.attributes('-transparentcolor', 'white') # 使白色为透明色 self.newframe.overrideredirect(true) # 隐藏导航栏 self.canvas = tkinter.canvas(self.newframe,bg='white',bd=0,width=screewidth,height=screeheight) self.canvas.bind('<button-1>', self.onleftbuttondown)#按下左键 self.canvas.bind('<b1-motion>', self.onleftbuttonmove)#移动鼠标 self.canvas.bind('<buttonrelease-1>', self.onleftbuttonup)#抬起左键 self.canvas.pack(fill=tkinter.both, expand=tkinter.yes) time.sleep(0.3) im = imagegrab.grab() # 暂存全屏截图 im.save('temp.png') im.close() self.image = tkinter.photoimage(file='temp.png') os.remove('temp.png') self.canvas.create_image(screewidth//2, screeheight//2, image=self.image)
2.鼠标事件监听#按下鼠标def onleftbuttondown(self,event): try: self.canvas.delete(self.lastdraw) self.canvas.delete(self.dot1) self.canvas.delete(self.dot2) self.btn3.destroy() except exception as e: pass self.x = event.x self.y = event.y self.x2 = 0 self.y2 = 0#移动鼠标def onleftbuttonmove(self,event): try: # 删除刚画完的图形，不然所有画的框都会出现 self.canvas.delete(self.lastdraw) self.canvas.delete(self.dot1) self.canvas.delete(self.dot2) self.btn3.destroy() except exception as e: pass self.x2 = event.x self.y2 = event.y self.lastdraw = self.canvas.create_rectangle(self.x, self.y, event.x, event.y,width=2, outline='pink')#松开鼠标def onleftbuttonup(self,event): print("起点", self.x, self.y) print("终点", self.x2, self.y2) if self.x2==0 and self.x2==0: return self.width, self.high = self.x2-self.x,self.y2-self.y self.region = (self.x, self.y, self.x2, self.y2) self.dot1=self.canvas.create_text(self.x, self.y - 10, text=f'({self.x},{self.y})', font=("purisa", 12), fill="pink") self.dot2=self.canvas.create_text(self.x2, self.y2 + 10, text=f'({self.x2},{self.y2})', font=("purisa", 12), fill="pink") # self.newframe.destroy()#销毁窗口 # self.init_window.deiconify()#显示窗口 # self.tk.state('normal') # 取消窗口最小化 self.btn3 = tkinter.button(self.canvas, width=15, height=1, text='确定录制区域',bg='pink',fg='#64854c',command=lambda:[self.newframe.destroy(),self.tk.state('normal')]) self.btn3.pack() self.btn3.place(x=self.x2-20, y=self.y2+20, anchor='n')
3.键盘事件监听# 开始监听def start_listen(self): with keyboard.listener(on_press=self.on_press) as listener: listener.join() # 监听按键def on_press(self,key): if key == keyboard.key.esc: self.flag = true # 改变 return false # 返回false，键盘监听结束！
三、录屏操作def video_record(self): fourcc = cv2.videowriter_fourcc('x', 'v', 'i', 'd') out = cv2.videowriter('output.mp4', fourcc, 14, (self.width, self.high)) # 参数分别为 输出文件名，解码方式，帧数，录像范围 self.count = 1 while (true): img = imagegrab.grab(self.region) #指定截取坐标(左边x，上边y，右边x，下边y) img_np = numpy.array(img) frame = cv2.cvtcolor(img_np, cv2.color_bgr2rgb) # imagegrab获取的颜色为bgr排序，需转换为rgb out.write(frame) self.count += 1 label = tkinter.label(self.tk, text=f"{int(self.count / 14)}秒") label.pack() label.place(x=320, y=55, anchor='n') # 点击esc退出 if self.flag == true: tkinter.messagebox.showinfo('提示', '录屏结束') self.flag = false # 改变录屏状态 break out.release() cv2.destroyallwindows()
以上就是python怎么实现录屏功能的详细内容。