获取屏幕像素颜色linux python3

本文介绍了获取屏幕像素颜色linux python3的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我在python 2.7中有一个正在尝试转换为python 3.3的工作程序.

I have a working program in python 2.7 that I am trying to convert to python 3.3.

工作版本为:

#!/usr/bin/python2 import gtk.gdk import sys def PixelAt(x, y): w = gtk.gdk.get_default_root_window() pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, 1, 1) cm = w.get_colormap() pb = pb.get_from_drawable(w, cm, x, y, 0, 0, 1, 1) return pb.pixel_array[0][0] print(PixelAt(int(sys.argv[1]), int(sys.argv[2])))

部分转换的是:

#!/usr/bin/python3 from gi.repository import Gtk, Gdk, GdkPixbuf import sys def PixelAt(x, y): w = Gdk.get_default_root_window() pb = GdkPixbuf.Pixbuf.new(GdkPixbuf.Colorspace.RGB, False, 8, 1, 1) cm = w.get_colormap() # What goes here? pb = pb.get_from_drawable(w, cm, x, y, 0, 0, 1, 1) # What goes here? return pb.pixel_array[0][0] print(PixelAt(int(sys.argv[1]), int(sys.argv[2])))

我需要完成什么转换?

感谢@jku，这是我完整的python3颜色选择器:

Thanks to @jku here is my complete python3 color picker:

#!/usr/bin/python3 # Print RGB color values of screen pixel at location x, y from gi.repository import Gdk import sys def PixelAt(x, y): w = Gdk.get_default_root_window() pb = Gdk.pixbuf_get_from_window(w, x, y, 1, 1) return pb.get_pixels() print(tuple(PixelAt(int(sys.argv[1]), int(sys.argv[2]))))

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推荐答案

w = Gdk.get_default_root_window() pb = Gdk.pixbuf_get_from_window(w, x, y, 1 ,1)

应该这样做.请注意， pixbuf_get_from_window()可以返回None，就像您使用的Gdk2函数一样:您必须先检查返回值.

that should do it. Note that pixbuf_get_from_window() can return None just like the Gdk2 function you used: you must check the return value before using it.