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标题: Python窗口截图,PIL方式,非win32gui [打印本页]

作者: 我不是老手 时间: 2009-12-02 18:18
标题: Python窗口截图,PIL方式,非win32gui
# -*- coding: cp936 -*-
import os
import ctypes
from PIL import ImageGrab
class RECT(ctypes.Structure):
_fields_ = [('left', ctypes.c_long),
            ('top', ctypes.c_long),
            ('right', ctypes.c_long),
            ('bottom', ctypes.c_long)]
def __str__(self):
      return str((self.left, self.top, self.right, self.bottom))
def capture(hwnd,tempdir):
"""
对窗口截图,传入窗口句柄及保存位置,生成的文件为temp.jpg
"""
rect = RECT()
ctypes.windll.user32.GetWindowRect(ieHWND,ctypes.byref(rect))
rangle = (rect.left+2,rect.top+2,rect.right-2,rect.bottom-2)
im = ImageGrab.grab(rangle)
jpgname = "temp.jpg"
Xini1 = os.path.join(tempdir,jpgname)
Xini111 = Xini1.replace("\\","/")
im.save(Xini111)
return
def test1():
ieHWND = ctypes.windll.user32.FindWindowA("IEFrame",None)#获取IE的句柄
getdir = os.getcwd()
HWND_TOP = 0
SWP_NOMOVE= 2
SWP_NOSIZE= 1
SWP_SHOWWINDOW= 64
ctypes.windll.user32.SetWindowPos(ieHWND, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_SHOWWINDOW)
import time
time.sleep(5)#延迟5秒
capture(ieHWND,getdir)
return

if __name__ == "__main__":
print "以IE窗口为测试窗口请先开一个IE然后再运行"
test1()

[ 本帖最后由我不是老手于 2009-12-2 18:26 编辑 ]

作者: openspace 时间: 2009-12-02 18:47
这个除了要PIL库还需要别的么
刚试了一下

以IE窗口为测试窗口请先开一个IE然后再运行
Traceback (most recent call last):
File "D:\Eclipse-3.3\workspace\Q&A\src\grap_screen.py", line 43, in <module>
test1()
File "D:\Eclipse-3.3\workspace\Q&A\src\grap_screen.py", line 38, in test1
capture(ieHWND,getdir)
File "D:\Eclipse-3.3\workspace\Q&A\src\grap_screen.py", line 19, in capture
ctypes.windll.user32.GetWindowRect(ieHWND,ctypes.byref(rect))
NameError: global name 'ieHWND' is not defined

复制代码

作者: zzcclp 时间: 2009-12-03 13:38
ctypes.windll.user32.GetWindowRect(ieHWND,ctypes.byref(rect))
这句的参数应该换为：hwnd, ctypes.byref(rect)
你试试

作者: openspace 时间: 2009-12-03 13:46
标题: 回复 #3 zzcclp 的帖子
试了一下，出现了新的错误

以IE窗口为测试窗口请先开一个IE然后再运行
Traceback (most recent call last):
File "D:\Eclipse-3.3\workspace\Q&A\src\grap_screen.py", line 43, in <module>
test1()
File "D:\Eclipse-3.3\workspace\Q&A\src\grap_screen.py", line 38, in test1
capture(ieHWND,getdir)
File "D:\Eclipse-3.3\workspace\Q&A\src\grap_screen.py", line 25, in capture
im.save(Xini111)
File "E:\Python Toolkit\Python-2.6\Lib\site-packages\PIL\Image.py", line 1405, in save
save_handler(self, fp, filename)
File "E:\Python Toolkit\Python-2.6\Lib\site-packages\PIL\JpegImagePlugin.py", line 409, in _save
ImageFile._save(im, fp, [("jpeg", (0,0)+im.size, 0, rawmode)])
File "E:\Python Toolkit\Python-2.6\Lib\site-packages\PIL\ImageFile.py", line 490, in _save
e.setimage(im.im, b)
SystemError: tile cannot extend outside image

复制代码

作者: liberalwu 时间: 2009-12-06 21:24
标题: 回复 #1 我不是老手的帖子
要将
ieHWND = ctypes.windll.user32.FindWindowA("IEFrame",None)#获取IE的句柄
这个要放到全局变量，不然ieHWND只作用在函数def test1()区域中～
capture函数无法获取变量值～

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