html5 canvas clickable button

(' On ' +type, handler); } } function Saveimageinfo () { var mycanvas = document.getElementById ("Thecanvas"); var image = Mycanvas.todataurl ("Image/png"); var w=window.open (' About:blank ', ' image from Canvas '); W.document.write ("img src='" "+image+" ' alt=' from canvas '/> "); } function Saveaslocalimage () { var mycanvas = document.getElementById ("Thecanvas"); He

(stream ){Video. src = window. webkitURL. createObjectURL (stream );Video. play ();}, ErrBack );}Else if (navigator. mozGetUserMedia) {// Firefox-prefixedNavigator. Define getusermedia (videoObj, function (stream ){Video. src = window. URL. createObjectURL (stream );Video. play ();}, ErrBack );}}, False );Once it is determined that the user's browser supports getUserMedia, the following is very simple. You only need to set the src of the video element to the live video connection of the user's

ctx.drawimage (IMG,0, 0); - - Ctx.font= "80px Microsoft Yahei"; - Ctx.fillstyle= "Rgba (252,255,255,0.8)"; - //the contents of the text box are added to the picture area. - document.getElementById ("btn"). onclick= function () { in Ctx.filltext (document.getElementById ("text"). Value, -, $); - //document.getElementById ("text"). Value = ""//You can choose whether to empty the contents of the input box to } + } - } the Script> * $ BR> Panax Notoginseng

Use of video tagsThe video tag defines the movie, which is a new label in HTML5, and its properties are as follows (refer to the documentation):　　Domo01"en">"UTF-8"> "Madashuai.mp4"loop="Loop"autoplay="AutoPlay"controls="Controls"Width=" -"height=" -"> SRC is the path to the video Loop is looping, that is, playback continues after the play is finished AutoPlay is ready to play Controls appear as control controls, and no start-paus

Recently in the study of HTML5, it involves a very critical element canvas-canvas, downloaded some game source code on the net, although can understand, but want to separate for a function to extract out or have difficulty, so oneself and go online to look for some examples, just will super Mary simple animation to achieve. The main drawimage () functions involv

Use HTML5 Canvas's DrawImage (img,sx,sy,sw,sh,x,y,w,h) to realize the movement of characters. where IMG is a picture, sx,sy,sw,sh four parameters are optional, when you need to trim the picture, the x, y coordinates to trim from, and the width and height to trim. X,y,w,h is the width and height of the x, Y coordinates drawn in the scene, and the picture that is drawn. When Sw,sh and w,h are inconsistent, the method scales the picture, noting the consi

Remember before we shared a disk lottery based on jquery plug-ins, you can use this plugin in their own website to provide users with a number of lottery activities. Today to share is also a disc lottery application, but it is based on HTML5 canvas, the operating principle is similar to the use of random number principle to achieve lottery results. HTML code The code is as follows Copy Co

The front-end has been to make the Mavericks timid field, but once involved, technology is naturally also rubbing against the upward, the purse is naturally bingo.However, in this thousands of worlds together with the information of the Times, but still in our development process there is always a lost technical point is difficult to find suitable for their own demo, which led to the discontent and complaints of the cows and cows, so bitter from the back end to the front-end of the expedition, e

object so that you can listen to the entire browser window.　　Second, button　　The Lbutton class is built into the library to add buttons.Prototype: Lbutton (Displayobject_up,displayobject_over)Parameters: Displayobject_up: Represents the button default is up state, that is not pressed.Displayobject_over: The state of the button when the mouse moves over the

The front-end has been to make the Mavericks timid field, but once involved, technology is naturally also rubbing against the upward, the purse is naturally bingo.However, in this thousands of worlds together with the information of the Times, but still in our development process there is always a lost technical point is difficult to find suitable for their own demo, which led to the discontent and complaints of the cows and cows, so bitter from the back end to the front-end of the expedition, e

This article describes the JS+HTML5 implementation of the canvas to draw a Web page clock, the painting is a Web page, with the pendulum of the clock, you can adjust its size and position through the button, the implementation of the content is as follows Effect Chart: I hope this article will help you with your Web programming.

This article mainly introduces the effect of the four gradient playback buttons drawn by using javascript and HTML5Canvas. For more information, see It is a new tag in html5. Like all dom objects, it has its own attributes, methods, and events. There is a plotting method, and js can call it for plotting, this article uses the canvas tag and Javascript to draw a four-color gradient playback