是否可以通过X和Y坐标获取屏幕上特定像素的颜色？

Question

I would like to get the color of a particular pixel in Python using its XY coordinates, is this possible?

This is in Windows, if it makes a difference.

Answer 1

See http://rosettacode.org/wiki/Color_of_a_screen_pixel under the heading for python

they give:

def get_pixel_colour(i_x, i_y):
    import win32gui
    i_desktop_window_id = win32gui.GetDesktopWindow()
    i_desktop_window_dc = win32gui.GetWindowDC(i_desktop_window_id)
    long_colour = win32gui.GetPixel(i_desktop_window_dc, i_x, i_y)
    i_colour = int(long_colour)
    return (i_colour & 0xff), ((i_colour >> 8) & 0xff), ((i_colour >> 16) & 0xff)

print get_pixel_colour(0, 0)

which uses Python Extensions for Windows which is available for python 2.3 to 3.1 at http://sourceforge.net/projects/pywin32/files/pywin32/Build%20214/