private void button2_Click(object sender, EventArgs e)
{
if (!string.IsNullOrEmpty(textBox1.Text.Trim()))
{
string enCodeString = textBox1.Text.Trim();//获取到需要转化为二维码的字符
QRCodeEncoder codeEncoder = new QRCodeEncoder();//创建一个编码器
pictureBox1.Image = codeEncoder.Encode(enCodeString, Encoding.UTF8);//对字符串进行编码,返回一个图片
}
}
//将获得的二维码保存到本地
private void 二维码另存为ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (pictureBox1 .Image!=null)
{
SaveFileDialog s = new SaveFileDialog();
s.Title = "保存二维码图片";
s.Filter = "图片文件(*.jpg)|*.jpg";
if (s.ShowDialog()==DialogResult.OK)
{
pictureBox1.Image.Save(s.FileName, System.Drawing.Imaging.ImageFormat.Jpeg);
MessageBox.Show("保存成功");
}
}
}
string filename = string.Empty;
private void button1_Click(object sender, EventArgs e)
{
OpenFileDialog p = new OpenFileDialog();
p.Title = "请选择二维码图片";
p.Filter = "图片格式(*.jpg)|*.jpg";
p.Multiselect = false;
if (p.ShowDialog()==DialogResult.OK)
{
filename = p.FileName;
ss();
}
}
private void ss()
{
pictureBox1.Image = new Bitmap(filename);//
QRCodeDecoder qrDecoder = new QRCodeDecoder();//创建一个解码器
string msg= qrDecoder.decode(new QRCodeBitmapImage(new Bitmap(pictureBox1.Image)), Encoding.UTF8);//解码返回一个字符串
textBox1.Text = msg;
MessageBox.Show("解析完成");
}