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OK, in the last four days, we created a clear screen button and a save as Panji button in this video,

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we want to start to work out these functions.

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So in this video, we're going to do the screen function first, and it shouldn't be very hard at all.

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So we've got our canvas right.

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So we always have to do is sort of delete it so we can call my canvas delete and we pass in all we want

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to delete everything in the canvas.

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Right.

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And so let's go and save this and let's just run this to see if this worked.

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Let's draw some stuff, change the brush color.

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Maybe change this to a diamond, whatever.

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Now clear the screen, boom, it clears.

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Now check this out.

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If we have a green background and then we clear the screen, nothing happens because we can change brush

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colors here.

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And we can do stuff and work like this, it deletes that stuff, but it's not changing that the canvas

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back to its default and we probably want to do that so we can make that change really quick.

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We can just call my canvas and we could just.

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Doc config and then set the bug, the background color to anything we want, let's just set it back

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to white the default so that we save this.

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Let's run this guy again.

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And if we've changed the canvas color to whatever and now when I click clear the screen, it changes

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back to white so we can do anything we want, but that there let's change this to pink because that

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is horrible.

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Right now we click this screen button, boom, everything goes back to the default and we can start

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over again.

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So pretty simple, pretty straightforward.

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And I think that's all for this video.

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And the next video will go ahead and knock out this save tipping thing and go from there.