将图像复制到剪贴板

Question

我有一个图像作为DataURL字符串.
我想以编程方式将此图像复制到ClipBoard.

我找到了两个函数,但它们都不起作用.虽然,复制文本时第一个功能很有效 - 复制("Hello!","text");

PS我有一个"clipboardWrite"权限.

第一:

function copy(str, mimetype) {
    document.oncopy = function(event) {
        event.clipboardData.setData(mimetype, str);
        event.preventDefault();
    };
    document.execCommand("Copy", false, null);
}

第二:

function copyImage(url){
    var img=document.createElement('img');
    img.src=url;
    document.body.appendChild(img);
    var r = document.createRange();
    r.setStartBefore(img);
    r.setEndAfter(img);
    r.selectNode(img);
    var sel = window.getSelection();
    sel.addRange(r);
    document.execCommand('Copy');
}

Answer 1

//使用Java Robot将图像复制到剪贴板

 Runtime.getRuntime().exec("mspaint.exe");
Thread.sleep(5000);
StringSelection x=new StringSelection("Location of Photo with format");
Toolkit.getDefaultToolkit().getSystemClipboard().setContents(x,null);
Robot r=new Robot();
r.keyPress(KeyEvent.VK_CONTROL);
r.keyPress(KeyEvent.VK_O);
r.keyRelease(KeyEvent.VK_O);
r.keyRelease(KeyEvent.VK_CONTROL);
Thread.sleep(4000);
r.keyPress(KeyEvent.VK_CONTROL);
r.keyPress(KeyEvent.VK_V);
r.keyRelease(KeyEvent.VK_V);
r.keyRelease(KeyEvent.VK_CONTROL);
Thread.sleep(1000);
r.keyPress(KeyEvent.VK_ENTER);
r.keyRelease(KeyEvent.VK_ENTER);
Thread.sleep(5000);
r.keyPress(KeyEvent.VK_CONTROL);
r.keyPress(KeyEvent.VK_A);
r.keyRelease(KeyEvent.VK_A);
r.keyRelease(KeyEvent.VK_CONTROL);
Thread.sleep(5000);
r.keyPress(KeyEvent.VK_CONTEXT_MENU);
r.keyRelease(KeyEvent.VK_CONTEXT_MENU);
Thread.sleep(1000);
r.keyPress(KeyEvent.VK_DOWN);
r.keyRelease(KeyEvent.VK_DOWN);
r.keyPress(KeyEvent.VK_DOWN);
r.keyRelease(KeyEvent.VK_DOWN);
Thread.sleep(2000);
r.keyPress(KeyEvent.VK_ENTER);
r.keyRelease(KeyEvent.VK_ENTER);
Thread.sleep(2000);
r.keyPress(KeyEvent.VK_ALT);
r.keyPress(KeyEvent.VK_F4);
r.keyRelease(KeyEvent.VK_F4);
r.keyRelease(KeyEvent.VK_ALT);