In the process of developing qwebwngine, I need to call subpage printing.
parent html code
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
<iframe src="print.html" id="printf" name="printf" frameborder="0" width="200"></iframe>
<input type="button" value="print child" onclick="document.getElementById('printf').contentWindow.prints();" />
</body>
</html>
child html code
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
</head>
<body>
<p>child page!</p>
<div id="name">im child page!</div>
<script>
function prints(){
window.print();
}
</script>
</body>
</html>
I need to print the content of the sub-page and how to write the code，
Do not print the buttons on the parent page.