HTML canvas strokeStyleProperty
Canvas ObjectExamples
Draw a rectangle. Use a red stroke color:
JavaScript：
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.strokeStyle="#FF0000";
ctx.strokeRect(20,20,150,100);
var ctx=c.getContext("2d");
ctx.strokeStyle="#FF0000";
ctx.strokeRect(20,20,150,100);
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Browser Support
Internet Explorer 9, Firefox, Opera, Chrome, and Safari support the strokeStyle property.
Note:Internet Explorer 8 and earlier versions do not support the <canvas> element.
Definition and Usage
The strokeStyle property sets or returns the color, gradient, or pattern used for strokes.
| Default value: | #000000 |
|---|---|
| JavaScript syntax: | context.strokeStyle=color|gradient|pattern; |
Property Values
| Value | Description |
|---|---|
| color | Indicates the color of the drawing strokeCSS color value. Default value is #000000. |
| gradient | Gradient object used to fill the drawing (linearorradial）。 |
| pattern | Used to create pattern strokespatternobject. |
More Examples
Example
Draw a rectangle. Use a gradient stroke:
JavaScript：
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
var gradient=ctx.createLinearGradient(0,0,170,0);
gradient.addColorStop("0","magenta");
gradient.addColorStop("0.5","blue");
gradient.addColorStop("1.0","red");
// Fill with gradient
ctx.strokeStyle=gradient;
ctx.lineWidth=5;
ctx.strokeRect(20,20,150,100);
var ctx=c.getContext("2d");
var gradient=ctx.createLinearGradient(0,0,170,0);
gradient.addColorStop("0","magenta");
gradient.addColorStop("0.5","blue");
gradient.addColorStop("1.0","red");
// Fill with gradient
ctx.strokeStyle=gradient;
ctx.lineWidth=5;
ctx.strokeRect(20,20,150,100);
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Example
Write the text "Big smile!" with a gradient stroke:
JavaScript：
var c=document.getElementById("myCanvas");
var ctx=c.getContext("2d");
ctx.font="30px Verdana";
// Create gradient
var gradient=ctx.createLinearGradient(0,0,c.width,0);
gradient.addColorStop("0","magenta");
gradient.addColorStop("0.5","blue");
gradient.addColorStop("1.0","red");
// Fill with gradient
ctx.strokeStyle=gradient;
ctx.strokeText("Big smile!",10,50);
var ctx=c.getContext("2d");
ctx.font="30px Verdana";
// Create gradient
var gradient=ctx.createLinearGradient(0,0,c.width,0);
gradient.addColorStop("0","magenta");
gradient.addColorStop("0.5","blue");
gradient.addColorStop("1.0","red");
// Fill with gradient
ctx.strokeStyle=gradient;
ctx.strokeText("Big smile!",10,50);
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Other Extensions