如何创建一个iTextSharp.text.Image对象startng到System.Drawing.Bitmap对象？ [英] How to create a iTextSharp.text.Image object startng to a System.Drawing.Bitmap object?

问题描述

我是 iTextSharp （ iText 的C＃版本）中的新手：

I am pretty new in iTextSharp (the C# version of iText):

我有类似的东西这个：

System.Drawing.Bitmap bitmap = (System.Drawing.Bitmap)ChartHelper.GetPdfChart((int)currentVuln.UrgencyRating * 10);

iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(bitmap);

vulnerabilityDetailsTable.AddCell(new PdfPCell(img) { Border = PdfPCell.RIGHT_BORDER, BorderColor = new BaseColor(79, 129, 189), BorderWidth = 1, Padding = 5, MinimumHeight = 30, PaddingTop = 10 });  

如你所见，我有经典的 System.Drawing.Bitmap immage命名位图，我想把它放在PDF文档表的单元格中。

As you can see I have classic System.Drawing.Bitmap immage named bitmap and I want put it inside a cell of a PDF document table.

问题是此行被签名为错误：

The problem is that this line is signed as error:

iTextSharp.text.Image img = iTextSharp.text.Image.GetInstance(bitmap);

错误是：

错误75
的最佳重载方法匹配'iTextSharp.text.Image.GetInstance（iTextSharp.text.Image）'有一些
无效
参数c：\Develop \EarlyWarning\public\Implementazione\Ver2\PdfReport\PdfVulnerability.cs 120 27 PdfReport

Error 75 The best overloaded method match for 'iTextSharp.text.Image.GetInstance(iTextSharp.text.Image)' has some invalid arguments c:\Develop\EarlyWarning\public\Implementazione\Ver2\PdfReport\PdfVulnerability.cs 120 27 PdfReport

所以我认为我需要从经典的 System.Drawing.Bitmap 对象中获取 iTextSharp.text.Image 对象。

So I think that I need to obtain an iTextSharp.text.Image object from a classic System.Drawing.Bitmap object.

我该怎么办？我疯狂地试图这样做。

What can I do to do it? I am going crazy trying to do it.

Tnx

推荐答案

没有重载只需 System.Drawing.Image 。你需要使用其中一个：

There are no overloads that take just a System.Drawing.Image. You need to used one of these:

GetInstance(System.Drawing.Image image, BaseColor color)
GetInstance(System.Drawing.Image image, BaseColor color, bool forceBW)
GetInstance(System.Drawing.Image image, System.Drawing.Imaging.ImageFormat format)

第一个可能是最好的选择，我99％肯定你可以为<$ c传递 null c $ c> color 参数。

The first one is probably the best choice and I'm 99% sure you can pass null for the color parameter.

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