如何在不保存在C#本地文件系统中的情况下在picturebox中显示图像

Question

//Retrieve an image in Jpg format and store it into a variable.
var imgFile = (ImageFile)ScanerItem.Transfer(FormatID.wiaFormatJPEG);  

var Path = @"D:ScanImg.jpg";   
// save the image in some path with filename.
imgFile.SaveFile(Path);
pictureBox1.ImageLocation = Path;

Answer 1

基于以下SO答案，您可以使用(byte[])imgFile.FileData.get_BinaryData():获得图像的byte[]

转换__comobj WIA到C#应用程序中的byte[]

位图可以作为源放入PictureBox中
因此byte[]要放入MemoryStream并创建Bitmap:

var imgFile = (ImageFile)ScanerItem.Transfer(FormatID.wiaFormatJPEG);  
byte[] imageBytes = (byte[])imgFile.FileData.get_BinaryData();
Bitmap image;
using (MemoryStream stream = new MemoryStream(imageBytes))
{
image = new Bitmap(stream);
}
pictureBox1.Image = image;