python excel 区域截图示例代码

以下是 Python Excel 区域截图示例代码：

import win32gui
import win32ui
import win32con
import win32api
import numpy as np
import cv2

# 获取 Excel 窗口句柄
hwnd = win32gui.FindWindow(None, "Microsoft Excel")

# 获取 Excel 工作表句柄
childHwnd = win32gui.FindWindowEx(hwnd, None, "XLDESK", None)
childHwnd = win32gui.FindWindowEx(childHwnd, None, "EXCEL7", None)
childHwnd = win32gui.FindWindowEx(childHwnd, None, "EXCEL6", None)
childHwnd = win32gui.FindWindowEx(childHwnd, None, "EXCEL5", None)
childHwnd = win32gui.FindWindowEx(childHwnd, None, "EXCEL4", None)

# 获取 Excel 工作表位置和大小
left, top, right, bottom = win32gui.GetWindowRect(childHwnd)

# 计算 Excel 工作表的宽度和高度
width = right - left
height = bottom - top

# 创建设备上下文
hdc = win32gui.GetWindowDC(childHwnd)
mfcDC = win32ui.CreateDCFromHandle(hdc)
saveDC = mfcDC.CreateCompatibleDC()

# 创建位图对象
saveBitMap = win32ui.CreateBitmap()
saveBitMap.CreateCompatibleBitmap(mfcDC, width, height)

# 将位图对象选入设备上下文
saveDC.SelectObject(saveBitMap)

# 将 Excel 工作表截图到位图对象中
win32gui.SetForegroundWindow(childHwnd)
win32api.keybd_event(win32con.VK_SNAPSHOT, 0)
bmpinfo = saveBitMap.GetInfo()
bmpstr = saveBitMap.GetBitmapBits(True)
img = np.fromstring(bmpstr, dtype='uint8')
img.shape = (bmpinfo['bmHeight'], bmpinfo['bmWidth'], 4)
img = cv2.cvtColor(img, cv2.COLOR_BGRA2BGR)

# 释放资源
win32gui.DeleteObject(saveBitMap.GetHandle())
saveDC.DeleteDC()
mfcDC.DeleteDC()
win32gui.ReleaseDC(childHwnd, hdc)

# 显示截图
cv2.imshow("Excel 截图", img)
cv2.waitKey(0)
cv2.destroyAllWindows()

希望对你有帮助！