在 Windows 上使用 python 截屏的最快方法
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/3586046/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
Fastest way to take a screenshot with python on windows
提问by Claudiu
What's the fastest way to take a screenshot on windows? PIL.ImageGrabis rather slow.. it takes between 4-5 seconds to take 30 screenshots of the same small window. Taking screenshots of the whole desktop is even slower.
在 Windows 上截取屏幕截图的最快方法是什么？PIL.ImageGrab相当慢.. 拍摄同一个小窗口的 30 个屏幕截图需要 4-5 秒。截取整个桌面的屏幕截图甚至更慢。
采纳答案by pyfunc
You could use win32 APIs directly .
您可以直接使用 win32 API。
1) First give the focus to the App that you want to take screenshot of. link text
1）首先将焦点放在您要截屏的应用程序上。 链接文字
2) Win32 APIcan help with the screenshot:
2) Win32 API可以帮助截图：
import win32gui
import win32ui
hwnd = win32gui.FindWindow(None, windowname)
wDC = win32gui.GetWindowDC(hwnd)
dcObj=win32ui.CreateDCFromHandle(wDC)
cDC=dcObj.CreateCompatibleDC()
dataBitMap = win32ui.CreateBitmap()
dataBitMap.CreateCompatibleBitmap(dcObj, w, h)
cDC.SelectObject(dataBitMap)
cDC.BitBlt((0,0),(w, h) , dcObj, (0,0), win32con.SRCCOPY)
dataBitMap.SaveBitmapFile(cDC, bmpfilenamename)
# Free Resources
dcObj.DeleteDC()
cDC.DeleteDC()
win32gui.ReleaseDC(hwnd, wDC)
win32gui.DeleteObject(dataBitMap.GetHandle())
回答by Claudiu
Just found out how to do it with gtk. Seems fastest by far:
刚刚发现如何用 gtk 做到这一点。到目前为止似乎最快：
def image_grab_gtk(window):
left, top, right, bot = get_rect(window)
w = right - left
h = bot - top
s = gtk.gdk.Pixbuf(
gtk.gdk.COLORSPACE_RGB, False, 8, w, h)
s.get_from_drawable(
gtk.gdk.get_default_root_window(),
gtk.gdk.colormap_get_system(),
left, top, 0, 0, w, h )
final = Image.frombuffer(
"RGB",
(w, h),
s.get_pixels(),
"raw",
"RGB",
s.get_rowstride(), 1)
return final
Without converting to a PILImage, it's 8x faster than PIL on my test case. With converting, it's still ~2.7x faster.
在不转换为PIL图像的情况下，它在我的测试用例中比 PIL 快 8 倍。通过转换，它仍然快约 2.7 倍。
