I used a "Square" device that used signing with your fingertip. It felt weird. It was a native app, not a web app though.<div><br></div><div>It's possible to draw. For example, I just tested with Khan Academy: if you go to the site and it's the mobile, hit the button on the bottom to switch to desktop, then click to do a practice, then click one (addition 1 for example) then hit "Show scratchpad" and you can draw all you like. This must be using Canvas.</div>
<div><br></div><div>I have no idea how you can submit it though. I don't know if it's possible to grab the image data... (looking...)</div><div><br></div><div>Looks like, according to this you can: <a href="http://www.nihilogic.dk/labs/canvas2image/">http://www.nihilogic.dk/labs/canvas2image/</a></div>
<div><br></div><div>canvas.toDataUrl() base64 encodes the image as a png which you should be able to send to the server using ajax.</div><div><br></div><div>Slick idea.</div><div><br><br><div class="gmail_quote">On Thu, Oct 27, 2011 at 11:32 AM, Dave Hala Jr <span dir="ltr"><<a href="mailto:dave@58ghz.net">dave@58ghz.net</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Has anyone done any signature capture with a touchscreen device such as<br>
an ipad or a smartphone from inside a web page?<br>
<br>
:) Dave<br>
<br>
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