fillRect method
Paints a rectangle onto a CanvasRenderingContext2D object by using the current fill style.
  |
Syntax
CanvasRenderingContext2D.fillRect(x, y, w, h);Parameters
- x [in]
-
Type: Floating-point
The x-coordinate, in pixels, of the upper-left corner of the rectangle in relation to the coordinates of the canvas.
- y [in]
-
Type: Floating-point
The y-coordinate, in pixels, of the upper-left corner of the rectangle in relation to the coordinates of the canvas.
- w [in]
-
Type: Floating-point
The width, in pixels, of the rectangle in relation to the coordinates of the canvas.
- h [in]
-
Type: Floating-point
The height, in pixels, of the rectangle in relation to the coordinates of the canvas.
Return value
This method does not return a value.
Standards information
- HTML Canvas 2D Context, Section 8
Remarks
If the w or h parameter is zero, the fillRect method does not draw the rectangle.
Examples
The following code example fills rectangles by using a linear gradient and a solid color.
<!DOCTYPE html> <html> <head> <script type="text/javascript"> function draw() { var canvas = document.getElementById("MyCanvas"); if (canvas.getContext) { //get a context var ctx = canvas.getContext("2d"); //create a gradient object var gradient = ctx.createLinearGradient(0, 0, canvas.width, 0); // Add the colors with fixed stops at 1/4 of the width. gradient.addColorStop("0","magenta"); gradient.addColorStop(".25","blue"); gradient.addColorStop(".50","green"); gradient.addColorStop(".75","yellow"); gradient.addColorStop("1.0","red"); // Use the gradient as a fill pattern ctx.fillStyle = gradient; ctx.fillRect (0,0,300,250); ctx.fillStyle = "blue"; ctx.fillRect(250,300,600,500); } } </script> </head> <body onload="draw();"> <canvas id="MyCanvas" width="600" height="500"> </canvas> </body> </html>
See also
Send comments about this topic to Microsoft
Build date: 11/28/2012
