// Read a set of barcodes from an image.
private BarCode[] RecognizeBarcodes(BarCodeReader reader, ReadOpts optionsIn)
{
BarCode[] results = null;
var options = new ReadOpts(optionsIn);
if (options.Symbology == 0)
{
return(null);
}
try
{
results = reader.ReadBars(options);
}
catch (ArgumentOutOfRangeException ex)
{
_statusBox.AppendText("Range error in options: " + ex.Message + "\r\n");
}
catch (Exception ex)
{
_statusBox.AppendText("General error: " + ex.Message + "\r\n");
}
return(results);
}
private void Barcoder_Load(object sender, EventArgs e)
{
_recognizeButton.Enabled = false;
// set a few reasonable default options
_options = new ReadOpts
{
Symbology = Symbologies.Code39,
Direction = Directions.East,
// counter-intuitive - these defaults get pulled from the UI instead
// of being pushed into the UI
ScanInterval = _scanInterval.Value,
ScanBarsToRead = _expectedBarCodes.Value
};
// map the options into the UI
MapBarcodeSymbologies(_barcodeSymbologyList, _options, _mySymbologyMap);
MapScanDirections(_scanDirectionList, _options, _directionMap);
_statusBox.AppendText("Application loaded. Click \"Open Image\" to load an image.\r\n");
// This should point to the "DotImage 7.0\Images\Barcodes" folder.
_openFileDialog.FileName = Path.GetFullPath(@"..\..\Images\Barcodes\Code39Scanned.gif");
if (!File.Exists(_openFileDialog.FileName))
{
_openFileDialog.FileName = Path.GetFullPath(@"..\..\..\..\..\Images\Barcodes\Code39Scanned.gif");
if (!File.Exists(_openFileDialog.FileName))
{
_openFileDialog.FileName = string.Empty;
}
}
}
private void MapBarcodeSymbologies(CheckedListBox listBox, ReadOpts theOptions, SymbologyMap[] map)
{
// put each symbology into the check box,
// checking it as needed.
for (var i = 0; i < map.Length; i++)
{
listBox.Items.Add(map[i]);
if ((theOptions.Symbology & map[i].Symbology) != 0)
{
listBox.SetItemChecked(i, true);
}
}
}
private void MapScanDirections(CheckedListBox listBox, ReadOpts theOptions, ScanDirectionMap[] map)
{
// put each scan direction into the check box,
// checking it as needed.
for (var i = 0; i < map.Length; i++)
{
listBox.Items.Add(map[i]);
if ((theOptions.Direction & map[i].Direction) != 0)
{
listBox.SetItemChecked(i, true);
}
}
}
private static Task <int> Read(ReadOpts opts)
{
return(Task.FromResult(0));
}
