Does the get_image Method Support Windows?

[whwanyt]

Hello,

I'm experiencing an issue with the clipboard_rs crate on Windows 10, where I'm unable to retrieve an image from the clipboard using the provided example code. Despite having used the clipboard image tool to copy an image to the clipboard, the result returned by get_image is an empty image.

Here is the code snippet I'm using:

use clipboard_rs::{common::RustImage, Clipboard, ClipboardContext};
let ctx = ClipboardContext::new().unwrap();
let img = ctx.get_image().unwrap();

[ChurchTao]

@whwanyt
Sorry, what I am testing here is the screenshot scene. What is your scene? Copy image files directly?

[ChurchTao]

Maybe I am not compatible with all image formats, you can provide

• Before get_image(), print available_formats()
• How do you copy the picture?

[whwanyt]

@ChurchTao I will reply to the code result at night because I am not in front of the computer right now.

[ChurchTao]

@whwanyt
OK, I'm waiting for your news.

[ChurchTao]

I may have guessed your problem. If you use the image.rs demo to run, you need to change the file saving path to the path in your own operating system.
Like

const TMP_PATH: &str = "C:\\Windows\\Temp\\test.png";

I optimized the demo code so that it can run directly in Windows. You can take a look.

8058263#diff-7bf759a09f1216d26074fca12a9e8a2aac8ca2d0392e34ed84fa6974d988aa9bR3

[whwanyt]

I used the following sample code to get the clipboard picture and convert it to a base64 character string:

use base64::{engine::general_purpose, Engine as _};
use clipboard_rs::{common::RustImage, Clipboard, ClipboardContext};
fn main() {
    let ctx = ClipboardContext::new().unwrap();
    let image = ctx.get_image().unwrap();
    match image.to_png() {
        Ok(res) => {
            let image_bytes = res.get_bytes();
            let base64_str = general_purpose::STANDARD_NO_PAD.encode(&image_bytes);
            println!("{}", base64_str);
        }
        Err(e) => {
            println!("err: {}", e)
        }
    }
}

The output is as follows:

err: image is empty

I use electron _ screenshot this plugin to achieve screenshots to the clipboard

[whwanyt]

I may have guessed your problem. If you use the image.rs demo to run, you need to change the file saving path to the path in your own operating system. Like

const TMP_PATH: &str = "C:\\Windows\\Temp\\test.png";

I optimized the demo code so that it can run directly in Windows. You can take a look.

8058263#diff-7bf759a09f1216d26074fca12a9e8a2aac8ca2d0392e34ed84fa6974d988aa9bR3

Thank you for your reply, my goal is to get the image of the screen captured using the plugin by get_image method and convert it to base64 format

[ChurchTao]

@whwanyt
Before calling get_image, print available_formats to show me.

[whwanyt]

@whwanyt Before calling get_image, print available_formats to show me.

use clipboard_rs::{Clipboard, ClipboardContext};
fn main() {
    let ctx = ClipboardContext::new().unwrap();
    let types = ctx.available_formats().unwrap();
    println!("{:?}", types);
}

The print type results are as follows

    Finished dev [unoptimized + debuginfo] target(s) in 0.06s
     Running `target\debug\imgdemo.exe`
["CF_BITMAP", "CF_DIB", "CF_DIBV5"]

[ChurchTao]

@whwanyt
I understand. Sure enough, I am not compatible with images in bitmap format. I will fix it in the next version.

[ChurchTao]

@whwanyt
Good news, I have solved the compatibility problem. Can you please try the code of this new branch again?
https://github.com/ChurchTao/clipboard-rs/tree/dev-watcher-api-change

[ChurchTao]

The new version has been released. I will close this issue for now. If there are any problems, just reopen it.