private void Scan()
{
if (ClientSize.Width == 0 || QRCodeDecoder == null)
{
return;
}
if (QRCodeInputImage != null)
{
QRCodeInputImage.Dispose();
}
int w = this.ClientRectangle.Width;
int h = this.ClientRectangle.Height;
int l = this.Left + (this.Width - w) / 2;
int t = this.Top + (this.Height - h - l + this.Left);
//this.Opacity = 0;
textBox1.Text = "";
textBox1.BackColor = System.Drawing.Color.Gray;
QRCodeInputImage = new Bitmap(w, h);
using (Graphics g = Graphics.FromImage(QRCodeInputImage))
g.CopyFromScreen(l, t, 0, 0, QRCodeInputImage.Size, CopyPixelOperation.SourceCopy);
//pictureBox1.Image = QRCodeInputImage;
byte[][] DataByteArray = QRCodeDecoder.ImageDecoder(QRCodeInputImage);
textBox1.Text = QRDecoder.QRCodeResult(DataByteArray);
if (textBox1.Text != "")
{
textBox1.BackColor = System.Drawing.Color.White;
System.Windows.Forms.Clipboard.SetText(textBox1.Text);
}
//this.Opacity = 100;
}
private void OnLoadImage(object sender, EventArgs e)
{
// get file name to decode
OpenFileDialog Dialog = new OpenFileDialog {
Filter = "Image Files(*.png;*.jpg;*.gif;*.tif)|*.png;*.jpg;*.gif;*.tif;*.bmp)|All files (*.*)|*.*",
Title = "Load QR Code Image",
InitialDirectory = Directory.GetCurrentDirectory(),
RestoreDirectory = true,
FileName = string.Empty
};
// display dialog box
if (Dialog.ShowDialog() != DialogResult.OK)
{
return;
}
// clear parameters
ImageFileLabel.Text = Dialog.FileName;
// disable buttons
LoadImageButton.Enabled = false;
// dispose previous image
if (QRCodeInputImage != null)
{
QRCodeInputImage.Dispose();
}
// load image to bitmap
QRCodeInputImage = new Bitmap(Dialog.FileName);
// trace
#if DEBUG
QRCodeTrace.Format("****");
QRCodeTrace.Format("Decode image: {0} ", Dialog.FileName);
QRCodeTrace.Format("Image width: {0}, Height: {1}", QRCodeInputImage.Width, QRCodeInputImage.Height);
#endif
// decode image
byte[][] DataByteArray = QRCodeDecoder.ImageDecoder(QRCodeInputImage);
// convert results to text
DataTextBox.Text = QRDecoder.QRCodeResult(DataByteArray);
// enable buttons
LoadImageButton.Enabled = true;
// force repaint
Invalidate();
return;
}