How can I know the total pixels of a Canvas (DrawingCanvas plugin)?

Can someone help me,

I need to know how to calculate the number of total pixels of a Canvas (DrawingCanvas), This canvas can have blurred areas and there comes the problem that it is not a perfect square or rectangular area.

Can anyone help me with this?

Thanks

construct.net/en/make-games/manuals/construct-3/plugin-reference/drawing-canvas

Thank you, before asking for help I had read the documentation several times, but it doesn't solve what I need to know or at least I don't understand it, that's why I asked for help.

The standard method to tell how many pixels is to multiple width by height.

Then by pixel scale.

(DrawingCanvas.Width*DrawingCanvas.Height)*DrawingCanvas.PixelScale

This is perfect to know the total pixel count, thank you! But.... what would happen if in the centre of a drawingCanvas I deleted part of the object with a "Clear Rectangle" action?

Those missing pixels will not be taken into account. Any suggestions? thanks a lot!

Same method, big rectangle minus little rectangle.

The actual amount of pixels in the canvas will remain the same. A pixel is still a pixel even if its transparent.