自学教程：Python实现从PPT中导出高分辨率图片

import tkinter as tkfrom tkinter import ttkimport winregfrom tkinter import messagebox  class App(tk.Frame):    def __init__(self, master=None):        super().__init__(master)        self.master = master        self.pack()        self.version_maps = {            "Microsoft  365 ": "16.0",            "PowerPoint 2019": "16.0",            "PowerPoint 2016": "16.0",            "PowerPoint 2013": "15.0",            "PowerPoint 2010": "14.0",            "PowerPoint 2007": "12.0",            "PowerPoint 2003": "11.0",        }        self.center_window()        self.create_widgets()     def center_window(self):        width = 250        height = 200        screen_width = self.master.winfo_screenwidth()        screen_height = self.master.winfo_screenheight()        x = (screen_width - width) // 2        y = (screen_height - height) // 2        self.master.geometry(f"{width}x{height}+{x}+{y}")        self.master.title("PPT改DPI")     def create_widgets(self):        self.version_label = tk.Label(self, text="选择Office版本:")        self.version_label.pack()         self.version_var = tk.StringVar(self)        self.version_var.set(list(self.version_maps.keys())[0])         self.version_combobox = ttk.Combobox(            self,            textvariable=self.version_var,            values=list(self.version_maps.keys()),            state="readonly"        )        self.version_combobox.pack()         self.value_label = tk.Label(self, text="输入要修改的值:")        self.value_label.pack(pady=5)         self.value_entry = tk.Entry(self)        self.value_entry.insert(0, "96")        self.value_entry.pack(pady=5)         self.process_button = tk.Button(self, text="执行修改", command=self.process, width=15)        self.process_button.pack(pady=5)         self.quit_button = tk.Button(self, text="退出", command=self.master.destroy, width=15)        self.quit_button.pack(pady=5)     def process(self):        version = self.version_maps.get(self.version_var.get())        input_value = int(self.value_entry.get())         # 定义注册表路径和项名        reg_path = fr"Software/Microsoft/Office/{version}/PowerPoint/Options"        reg_key = "ExportBitmapResolution"         try:            # 打开注册表项            key = winreg.OpenKey(winreg.HKEY_CURRENT_USER, reg_path, 0, winreg.KEY_ALL_ACCESS)        except:            messagebox.showerror("错误", f"注册表项不存在，请检查: {reg_path}")            return         try:            # 尝试获取项的值            value, reg_type = winreg.QueryValueEx(key, reg_key)            if reg_type == winreg.REG_DWORD:                # 如果项存在且类型为DWORD32，修改它的值                winreg.SetValueEx(key, reg_key, 0, winreg.REG_DWORD, input_value)            else:                messagebox.showerror("失败", "注册表项类型不符合要求")        except FileNotFoundError:            # 如果项不存在，创建它并设置为DWORD32类型            winreg.SetValueEx(key, reg_key, 0, winreg.REG_DWORD, input_value)            # 修改它的值            winreg.SetValueEx(key, reg_key, 0, winreg.REG_DWORD, input_value)        messagebox.showinfo("成功 ", "修改后的值 =>" + str(winreg.QueryValueEx(key, reg_key)[0]))        # 关闭注册表项        winreg.CloseKey(key)  root = tk.Tk()app = App(master=root)app.mainloop()