[Tkinter-discuss] Copy image to clipboard

[Vasilis Vlachoudis]

Thank you Michael,

it works nicely!
________________________________
From: Tkinter-discuss <tkinter-discuss-bounces+vasilis.vlachoudis=cern.ch at python.org> on behalf of Michael Lange via Tkinter-discuss <tkinter-discuss at python.org>
Sent: Wednesday 28 February 2024 11:52
To: tkinter-discuss at python.org <tkinter-discuss at python.org>
Subject: Re: [Tkinter-discuss] Copy image to clipboard

Hi again,

for the archives, here is a simplified and more generalized example of the
copy_image_to_clipboard() function that works without having to "detour"
with Canvas.postscript():

def copy_image_to_clipboard(filename):
    image_buffer = io.BytesIO()

    image = Image.open(filename)
    image.save(image_buffer, format="PNG")
    image_buffer.seek(0)

    root.clipboard_clear()
    root.clipboard_append(image_buffer.getvalue(), type="image/png")

This seems to work well here under X11.

Have a nice day,

Michael


On Wed, 28 Feb 2024 11:29:53 +0100
Michael Lange via Tkinter-discuss <tkinter-discuss at python.org> wrote:

> On Thu, 22 Feb 2024 10:22:06 +0000
> Vasilis Vlachoudis <Vasilis.Vlachoudis at cern.ch> wrote:
>
> > Dear all,
> >
> > I am trying in X11 to copy an image to clipboard but with out success.
> (...)
>
> Hi Vasilis,
>
> sorry for the belated reply.
>
> This is tricky, I tried several suggestions found in the web to no
> avail. Finally for once an AI engine proved useful and provided me with
> an almost working solution which it seems I could fix with a little
> try-and-error :-)
>
> Here's the fixed AI code example:
>
> ##########################################
>
> import tkinter as tk
> from PIL import Image, ImageTk
> import io
>
> root = tk.Tk()
> root.geometry("700x500")
> root.title("Copy a Picture from Tkinter Canvas to Clipboard")
> canvas = tk.Canvas(root, width=400, height=400)
> canvas.pack()
>
> image = Image.open("image.jpg")
> image_tk = ImageTk.PhotoImage(image)
> canvas.create_image(0, 0, anchor="nw", image=image_tk)
>
> def copy_image_to_clipboard():
>     # Retrieve the image from the canvas
>     canvas_image = canvas.postscript()
>
>     # Create an in-memory file-like object
>     image_buffer = io.BytesIO()
>
>     # Save the canvas image to the buffer in PNG format
>     image = Image.open(io.BytesIO(canvas_image.encode('utf-8')))
>     image.save(image_buffer, format="PNG")
>     image_buffer.seek(0)
>
>     # Copy the image to the clipboard
>     root.clipboard_clear()
>     root.clipboard_append(image_buffer.getvalue(), type="image/png")
>
> copy_button = tk.Button(root, text="Copy Image",
> command=copy_image_to_clipboard) copy_button.pack()
>
> root.mainloop()
>
> ##########################################
>
> The trick is apparently to change format="image/png" (suggested by our
> artificial friend) to type="image/png" in clipboard_append(). With
> format="image/png" when trying to paste the clipboard into lowriter I
> got only a mess of characters.
>
> Have a nice day,
>
> Michael
>
>
>
> _______________________________________________
> Tkinter-discuss mailing list
> Tkinter-discuss at python.org
> https://mail.python.org/mailman/listinfo/tkinter-discuss



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