https://stackoverflow.com/questions/14058741
italiano
english
français
española
中国
日本の
العربية
Deutsch
한국어
Português
RussianI was able to accomplish what I wanted by having the user install Google Chrome Frame on there computer and then using the canvas tag to get the image. Works well here's some sample code:
<div>
<p id="status" style="color:red">
<noscript>JavaScript is disabled.</noscript>
</p>
<table>
<tr>
<td>
<input id="btnTakePicture" type="button" value="Take Picture"; />
</td>
<td>
<input id="btnSave" type="button" value="Save Picture"; />
</td>
</tr>
</table>
<asp:Button ID="btnSavePicture" runat="server" Text="HiddenSave" OnClick="btnSavePicture_Click" CssClass="hiddencol" />
<asp:Panel ID="pnlHide" runat="server" style="display:none" >
<textarea id="eventdata" rows="18" cols="1" style="width: 100%" runat="server"></textarea>
</asp:Panel>
<script type="text/javascript">
navigator.getUserMedia = navigator.getUserMedia || navigator.webkitGetUserMedia ||
navigator.mozGetUserMedia || navigator.msGetUserMedia;
var webcam = (function () {
var video = document.createElement('video'),
photo = document.createElement('canvas');
function play() {
if (navigator.getUserMedia) {
navigator.getUserMedia({ video: true, audio: true, toString: function () { return "video,audio"; } }, onSuccess, onError);
} else {
changeStatus('getUserMedia is not supported in this browser.', true);
}
}
function onSuccess(stream) {
var source;
if (window.webkitURL) {
source = window.webkitURL.createObjectURL(stream);
} else {
source = stream; // Opera and Firefox
}
video.autoplay = true;
video.src = source;
changeStatus('Connected.', false);
}
function onError() {
changeStatus('Please accept the getUserMedia permissions! Refresh to try again.', true);
}
function changeStatus(msg, error) {
var status = document.getElementById('status');
status.innerHTML = msg;
status.style.color = (error) ? 'red' : 'green';
}
// allow the user to take a screenshot
function setupPhotoBooth() {
//var takeButton = document.createElement('button');
var takeButton = document.getElementById('btnTakePicture');
//takeButton.innerText = 'Take Picture';
takeButton.addEventListener('click', takePhoto, true);
//document.body.appendChild(takeButton);
//var saveButton = document.createElement('button');
var saveButton = document.getElementById('btnSave');
//saveButton.id = 'btnSave';
//saveButton.innerText = 'Save Picture';
saveButton.disabled = true;
saveButton.addEventListener('click', savePhoto, true);
//document.body.appendChild(saveButton);
}
function takePhoto() {
// set our canvas to the same size as our video
photo.width = video.width;
photo.height = video.height;
var context = photo.getContext('2d');
context.drawImage(video, 0, 0, photo.width, photo.height);
// allow us to save
var saveButton = document.getElementById('btnSave');
saveButton.disabled = false;
var data = photo.toDataURL("image/png");
data = data.replace("image/png", "");
document.getElementById("<%= eventdata.ClientID %>").value = data;
}
function savePhoto() {
// var data = photo.toDataURL("image/png");
// data = data.replace("image/png", "image/octet-stream");
// document.getElementById("<%= eventdata.ClientID %>").value = data;
// document.location.href = data;
SendBack();
}
return {
init: function () {
changeStatus('Please accept the permissions dialog.', true);
video.width = 320;
video.height = 240;
document.body.appendChild(video);
document.body.appendChild(photo);
navigator.getUserMedia || (navigator.getUserMedia = navigator.mozGetUserMedia || navigator.webkitGetUserMedia || navigator.msGetUserMedia);
play();
setupPhotoBooth();
} ()
}
})();
function SendBack() {
var btn = document.getElementById("<%= btnSavePicture.ClientID %>");
btn.click();
}
</script>
</div>
