Python win32api修改屏幕朝向

在Python中，使用win32api库来直接控制屏幕方向通常不是最推荐的方式，因为这个库主要是用于Windows API级别的系统操作，包括底层的硬件控制，而屏幕旋转通常是操作系统或设备管理器的职责。然而，如果你确实需要这样做，比如模拟设备驱动或特定的应用场景，你可以尝试使用`ctypes`模块来导入并调用相关的Windows函数。

import ctypes
from ctypes import wintypes

# 定义常量和结构体
kernel32 = ctypes.windll.kernel32
USER32 = ctypes.windll.user32
DEVMODEW = ctypes.Structure(
    (wintypes.DWORD, 'dmDriverExtra'),
    (wintypes.LONG, 'dmFields'),
    (wintypes.BOOL, 'dmLogPixels'),
    (wintypes.DWORD, 'dmBitsPerPel'),
    (wintypes.DWORD, 'dmPelsWidth'),
    (wintypes.DWORD, 'dmPelsHeight'),
    (wintypes.DWORD, 'dmDisplayFlags'),
    (wintypes.DWORD, 'dmDisplayFrequency'),
    (wintypes.DWORD, 'dmICMMethod'),
    (wintypes.DWORD, 'dmICMIntent'),
    (wintypes.DWORD, 'dmMediaType'),
    (wintypes.DWORD, 'dmDitherType'),
    (wintypes.DWORD, 'dmReserved1'),
    (wintypes.DWORD, 'dmReserved2'),
    (wintypes.LONG, 'dmColorSpace'),
    (wintypes.HANDLE, 'hDevice'),
)

# 确定屏幕当前的显示模式
def get_current_display_mode():
    mode = DEVMODEW()
    mode.dmSize = ctypes.sizeof(DEVMODEW)
    if USER32.GetDeviceModeW(kernel32.GetStdHandle(-11), ctypes.byref(mode)):
        return mode
    else:
        raise Exception("Failed to get current display mode")

# 设置屏幕显示模式
def set_display_orientation(mode, orientation):
    # 这里假设orientation是一个整数，代表0（正常）、90、180或270度
    if orientation not in [0, 90, 180, 270]:
        raise ValueError("Invalid orientation")

    dmFields = mode.dmFields
    if orientation == 90 or orientation == 270:
        dmFields |= DMDM_DISPLAYROTATE
        mode.dmDisplayOrientation = orientation * DMDM_ROTATE270
    elif orientation == 180:
        dmFields |= DMDM_DISPLAYROTATE | DMDM_PORTRAIT
        mode.dmDisplayOrientation = DMDM_LANDSCAPE + DMDM_ROTATE180

    mode.dmFields = dmFields
    if USER32.SetDeviceModeW(kernel32.GetStdHandle(-11), ctypes.byref(mode)):
        print(f"Screen orientation changed to {orientation} degrees.")
    else:
        print("Failed to change screen orientation.")

# 示例：
current_mode = get_current_display_mode()
set_display_orientation(current_mode, 90)  # 设置横屏