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23 lines
546 B
HTML
23 lines
546 B
HTML
<!DOCTYPE html>
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<html>
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<body>
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<canvas id="A" width=200 height=50></canvas><br />
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<canvas id="B" width=200 height=50></canvas>
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<script>
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var canvasA = document.getElementById("A"),
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ctxA = canvasA.getContext('2d'),
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canvasB = document.getElementById("B"),
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ctxB = canvasB.getContext('2d'),
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width = canvasA.width,
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height = canvasA.height;
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ctxA.fillStyle = 'green';
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ctxA.fillRect(0, 0, width, height);
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ctxB.drawImage(canvasA, 0, 0);
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ctxA.fillStyle = 'red';
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ctxA.fillRect(0, 0, width, height);
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</script>
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</body>
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</html> |