如何在Html2Canvas之外获取变量的值 [英] How to get Value of a variable outside the Html2Canvas

问题描述

我使用Html2Canvas.js将div转换为画布

  var  canvasimage =  ; 
 html2canvas（$（  #dvorder），{
 onrendered：< span class =code-keyword> function （canvas）{
 theCanvas = canvas; 
 $（' ＃imgDemo'）。append（canvas）; 
 $（'  #imDemo canvas'）。attr（'  id'，  Billcan'）; 
 canvasimage =  document  .getElementById（'  Billcan'）。toDataURL（  image / png）; 
 
} 
 
 }）; 

如何在html2Canvas之外获取变量canvasimage的值

参考： http://jsfiddle.net/8ypxW/3/ [ ^ ]

解决方案

（ #dvorder），{
onrendered： function （canvas）{
theCanvas = canvas;

（' ＃imgDemo'）。append（canvas）;

（' ＃imgDemo canvas'）。attr（' id '，' Billcan'）;
canvasimage = document .getElementById（' Billcan '）。toDataURL（ image / png）;

}

}）;

如何在html2Canvas之外获取变量canvasimage的值

参考： http://jsfiddle.net/8ypxW/3/ [ ^ ]

Iam using Html2Canvas.js for converting a div into canvas

var canvasimage=""; 
 html2canvas($("#dvorder"), {
                onrendered: function (canvas) {
                    theCanvas = canvas;
                    $('#imgDemo').append(canvas);
                    $('#imgDemo canvas').attr('id', 'Billcan');                   
                    canvasimage = document.getElementById('Billcan').toDataURL("image/png");                   
                  
                }
                
            });

How to get the value of variable canvasimage outside the html2Canvas
refer:http://jsfiddle.net/8ypxW/3/[^]

解决方案

("#dvorder"), { onrendered: function (canvas) { theCanvas = canvas;

('#imgDemo').append(canvas);

('#imgDemo canvas').attr('id', 'Billcan'); canvasimage = document.getElementById('Billcan').toDataURL("image/png"); } });

How to get the value of variable canvasimage outside the html2Canvas
refer:http://jsfiddle.net/8ypxW/3/[^]

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