将WriteableBitmap导出为图像文件

问题描述

我需要导出剪切图像后得到的WriteableBitmap。我没有得到如何做到这一点，我使用以下内容：

Hi,

I need to export a WriteableBitmap that I get after cropping an image. I am not getting how to do that, I am using the following:

try
            {
                byte[] byteStream;
                byteStream = ToByteArray(sample);
                Stream stream = new MemoryStream(byteStream);
                if (filename != null && filename != "")
                {
                    string imgCropFileName = "Crop_" + DateTime.Now.Day + filename;
                    MessageBox.Show("FileName" + " " + imgCropFileName);
                    UploadFile(imgCropFileName, stream);
                }
                else
                    MessageBox.Show("FileName" + " " + filename);
            }
            catch (Exception ex) { MessageBox.Show(ex.Message); }

在代码段中，ToByteArray是一个将WriteableBitmap转换为字节数组的函数。

用于上传，我正在使用一个通用的处理程序，当命中并获取相关参数时，上传文件。

请帮帮我。

In the code segment ToByteArray is a function to convert WriteableBitmap into array of bytes.
For uploading, I am using a generic handler which when hit and get relevant parameters, uploads the file.
Please help me.

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