How to resize a tab captured using chrome.tabs.captureVisibleTab (Chrome extension)

Question

I use the following code to capture a screenshot of a selected tab

chrome.tabs.captureVisibleTab( undefined, function( data ) { display( data ) });

The API says that you can resize the tab ( http://code.google.com/chrome/extensions/tabs.html#method-captureVisibleTab ), but I can’t figure out how to do this. At the moment, all the screenshots are full size (1440x900), but I only need their sizes in miniatures.

Does anyone know how to use this API to do this?

Thank.

Answer 1

API- Chrome captureVisibleTab. , , , , .

. HTML5. http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html

, , . canvas drawImage

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#images

drawImage , .

, , toDataURL , .

http://www.whatwg.org/specs/web-apps/current-work/multipage/the-canvas-element.html#dom-canvas-todataurl