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以独立软件包提供的原因在于：（一）不少API是仅出于兼容性的考虑而提供的。在新代码中，不应依赖于这些API；（二）不少API仅用于Windows平台。我们不希望将用户引上一条更难以跨平台迁移应用的道路。
你可以使用与弃用API相同的抑制选项，但是也可以选择对特定平台给出抑制警告。如果你仅规划在一组特定的平台上支持你的代码，例如只支持Windows和Linux但不支持macOS，这一工具十分有用。为此，你只需编辑项目文件，添加一个PlatformCompatIgnore属性，并在该属性中列出所有要忽略的平台。
Microsoft发布了一组工具，使用他们的dotnet-new工具和使用Node.js的灵活方法可以快速生成基于JavaScript的Web 应用程序。
dotnet-new工具是.NET Core工具的一部分，用于使用简单的命令启动一个新项目。作为ASP.NET Core JavaScript Services的一部分，Web开发人员现在可以使用相同的命令来启动新的单页应用程序（SPA）。
| 功能 | 要求 |
| 主要功能 | Microsoft Windows 95或更新版本 至少50 MB可用磁盘空间 128 MB内存或更多（更大的内存能提高性能） SVGA显卡或更好 |
1 2 3 | /* Property *//* Scan pages in 200 DPI */DWObject.Resolution = 200; |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 | // Method ///<summary> /// Rotates the image of a specified index in buffer by a specified angle. /// </summary>///<param name="sImageIndex" type="short" data-filtered="filtered">specifies the index of image in buffer. The index is 0-based.///<param name="fAngle" type="float" data-filtered="filtered">specifies the angle.///<param name="bKeepSize" type="bool" data-filtered="filtered">specifies whether to keep the original size///<returns type="bool" data-filtered="filtered"></returns>DWObject.Rotate(0, 45, false); // rotate the 1st image in the buffer by 45 degrees |
1 2 3 4 5 6 7 8 9 10 11 12 13 | <script type="text/javascript" data-filtered="filtered">Dynamsoft.WebTwainEnv.RegisterEvent('OnWebTwainReady', Dynamsoft_OnReady);var DWObject;/* OnWebTwainReady event fires as soon as Dynamic Web TWAIN is initialized and ready to be used. It is the best place to add event listeners */function Dynamsoft_OnReady() { DWObject = Dynamsoft.WebTwainEnv.GetWebTwain('dwtcontrolContainer'); DWObject.RegisterEvent("OnPostTransfer", Dynamsoft_OnPostTransfer);}function Dynamsoft_OnPostTransfer() { /* This event OnPostTransfer will be triggered after a transfer ends. */ /* your code goes here*/}</script> |
1 2 3 4 5 6 7 8 9 10 | <script type="text/javascript" data-filtered="filtered">Dynamsoft.WebTwainEnv.RegisterEvent('OnWebTwainReady', Dynamsoft_OnReady);var DWObject;function Dynamsoft_OnReady() { DWObject = Dynamsoft.WebTwainEnv.GetWebTwain('dwtcontrolContainer'); DWObject.RegisterEvent("OnPostTransfer", function() { /* your code goes here*/ });}</script> |
1 2 | /* sImageIndex is the index of the image you clicked on*/OnMouseClick(short sImageIndex) |
1 2 3 | function DynamicWebTwain_OnMouseClick(index) { CurrentImage.value = index + 1;} |
1 2 3 | DWObject.RegisterEvent("OnPostTransfer", function(index) { CurrentImage.value = index + 1;}); |
1 2 3 4 5 6 7 | <script type="text/javascript" data-filtered="filtered">Dynamsoft.WebTwainEnv.RegisterEvent('OnWebTwainReady', Dynamsoft_OnReady);var DWObject;function Dynamsoft_OnReady() { DWObject = Dynamsoft.WebTwainEnv.GetWebTwain('dwtcontrolContainer');}</script> |
1 2 3 4 5 | <script type="text/javascript" data-filtered="filtered"> Dynamsoft.WebTwainEnv.RegisterEvent('OnWebTwainReady', function() { DWObject = Dynamsoft.WebTwainEnv.GetWebTwain('dwtcontrolContainer'); });</script> |
本次教程到此结束，希望能对Dynamic Web TWAIN的用户带来帮助，接下来还会有更多的相关教程，敬请期待！
using (RasterCodecs codecs = new RasterCodecs())
{
codecs.Options.RasterizeDocument.Load.XResolution = 300;
codecs.Options.RasterizeDocument.Load.YResolution = 300;
RasterImage image = codecs.Load(inputFile);
using (IOcrEngine ocrEngine = OcrEngineManager.CreateEngine(OcrEngineType.Professional, false))
{
ocrEngine.Startup(null, null, null, @"C:\LEADTOOLS 19\Bin\Common\OcrProfessionalRuntime64");
using (IOcrDocument document = ocrEngine.DocumentManager.CreateDocument())
{
document.Pages.AddPage(image, null);
document.Pages[0].Recognize(null);
IOcrPageCharacters pageCharacters = document.Pages[0].GetRecognizedCharacters();
for (int i = 0; i < document.Pages[0].Zones.Count; i++)
{
IOcrZoneCharacters zoneCharacters = pageCharacters.FindZoneCharacters(i);
if (zoneCharacters != null)
{
foreach (var ocrCharacter in zoneCharacters)
{
OcrCharacterPosition position;
position = ocrCharacter.Position;
if ((position & OcrCharacterPosition.EndOfLine) == OcrCharacterPosition.EndOfLine)
{
Console.Write(ocrCharacter.Code + "\n");
}
else
{
Console.Write(ocrCharacter.Code);
}
}
}
}
}
}
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