使用 C# jpg 文件转换为位图?
it1352
帮助4人
问题说明
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
namespace convert
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load_1(object sender, EventArgs e)
{
// Image image = Image.FromFile(@"C:UsersPublicPicturesSample PicturesKoala.jpg");
// Set the PictureBox image property to this image.
// ... Then, adjust its height and width properties.
// pictureBox1.Image = image;
//pictureBox1.Height = image.Height;
//pictureBox1.Width = image.Width;
string strFileName = @"C:UsersPublicPicturesSample PicturesKoala.jpg";
Bitmap bitmap = new Bitmap(strFileName);
//bitmap.Save("testing.bmp", System.Drawing.Imaging.ImageFormat.Bmp);
pictureBox1.Image = bitmap;
pictureBox1.Height = bitmap.Height;
pictureBox1.Width = bitmap.Width;
}
}
}
我正在使用上面的代码将 jpg 文件转换为位图.它有效，但我需要知道如何流式传输 jpg 图像并将其转换为位图，然后显示位图图像而不存储它.我正在使用 c# 和 vb.net
I am using the above code for converting jpg file into bitmap. It works but I need to know how to stream the jpg image and convert it into bitmap then display the bitmap image with out storing it. I am using c# and vb.net
正确答案
#1
试试这个转换为 Bitmap :
Try this to convert to Bitmap :
public Bitmap ConvertToBitmap(string fileName)
{
Bitmap bitmap;
using(Stream bmpStream = System.IO.File.Open(fileName, System.IO.FileMode.Open ))
{
Image image = Image.FromStream(bmpStream);
bitmap = new Bitmap(image);
}
return bitmap;
}
这篇好文章是转载于：学新通技术网
