<!DOCTYPE html> <html> <head> <title>BMP To Canvas</title> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <meta name="viewport" content="width=device-width"> </head> <body> <input type="file" id="input"> <canvas id="canvas1" width="128" height="128"> This text is displayed if your browser does not support HTML5 Canvas. </canvas> <script> var inputElement = document.getElementById("input"); inputElement.addEventListener("change", handleFiles, false); var canvas1 = document. getElementById('canvas1'); var ctx1 = canvas1.getContext('2d'); function handleFiles(e) { var file = e.target.files[0]; var reader = new FileReader(); reader.addEventListener("load", processimage, false); reader.readAsArrayBuffer(file); }
function processimage(e) { var buffer = e.target.result; var bitmap = getBMP(buffer); var imageData = convertToImageData(bitmap); ctx1.putImageData(imageData, 0, 0); }
function getBMP(buffer) { var datav = new DataView(buffer); var bitmap = {}; bitmap.fileheader = {}; bitmap.fileheader.bfType = datav.getUint16(0, true); bitmap.fileheader.bfSize = datav.getUint32(2, true); bitmap.fileheader.bfReserved1 = datav.getUint16(6, true); bitmap.fileheader.bfReserved2 = datav.getUint16(8, true); bitmap.fileheader.bfOffBits = datav.getUint32(10, true);
Forum spam is a big problem and very difficult to combat. There are some solutions, none perfect, but this one might help reduce the burden on spam in your forum or mailing list.
If you have to administer an email list, creating a Google App Script to process email bounces and send the relevant data to a spreadsheet is not only useful but also a good example of using scripts.
