How to Capture a Screenshot on Linux using Python?

Patricia Arquette
Release: 2024-10-30 12:40:02
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How to Capture a Screenshot on Linux using Python?

Capturing a Screenshot using Python on Linux

In many situations, taking a screenshot can be a convenient way to capture information or document a process. This article provides a solution for capturing screenshots using Python scripts on Linux-based systems, without the need for external tools or libraries.

Python Script for Linux Screenshot Capture

The following Python script leverages the capabilities of GTK to capture and save a screenshot of the entire desktop environment:

import gtk.gdk

w = gtk.gdk.get_default_root_window()
sz = w.get_size()
print("The size of the window is {} x {}".format(*sz))
pb = gtk.gdk.Pixbuf(gtk.gdk.COLORSPACE_RGB, False, 8, sz[0], sz[1])
pb = pb.get_from_drawable(w, w.get_colormap(), 0, 0, 0, 0, sz[0], sz[1])
if pb != None:
    pb.save("screenshot.png", "png")
    print("Screenshot saved to screenshot.png.")
else:
    print("Unable to get the screenshot.")
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Explanation

  • The script begins by obtaining the default root window using gtk.gdk.get_default_root_window().
  • Next, it retrieves the dimensions of the root window using get_size().
  • A Pixbuf object is created to store the screenshot data. The get_from_drawable() method is then invoked to capture the contents of the root window.
  • If the screenshot capture is successful, it is saved to a file named "screenshot.png" in PNG format.

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