Question

Possible Duplicate:
How to send HTML <canvas> data to server

I had made a form who can send a picture in base64 to php script. I have used this plugin to capture image with flash and put it in the canvas (Useful for preview before post the form). But how can I get the actual picture data in canvas to send it via ajax ?

(Sorry for english !) 🙂
Thank you

EDIT :

Solved !

I just pointed to the canvas

canvas = document.getElementById('canvas');

pngBase64 = canvas.toDataURL("image/png");

And in I POST my pngBase64

Answer 1

canvas = document.getElementById("canvas");
context = canvas.getContext("2d");
data = context.getImageData(0,0,canvas.width,canvas.height);

https://developer.mozilla.org/en-US/docs/HTML/Canvas/Pixel_manipulation_with_canvas