U+202A: LEFT-TO-RIGHT EMBEDDING (LRE) U+202B: RIGHT-TO-LEFT EMBEDDING (RLE) U+202D: LEFT-TO-RIGHT OVERRIDE (LRO) U+202E: RIGHT-TO-LEFT OVERRIDE (RLO) U+202C: POP DIRECTIONAL FORMATTING (PDF)
‫
public const char RightToLeftEmbedding = (char)0x202B;
Right-to-left Unicode blocks for modern scripts are: Consecutive range of the main letters: U+0590 to U+05FF - Hebrew U+0600 to U+06FF - Arabic U+0700 to U+074F - Syriac U+0750 to U+077F - Arabic Supplement U+0780 to U+07BF - Thaana U+07C0 to U+07FF - N'Ko U+0800 to U+083F - Samaritan Arabic Extended: U+08A0 to U+08FF - Arabic Extended-A Consecutive presentation forms: U+FB1D to U+FB4F - Hebrew presentation forms U+FB50 to U+FDFF - Arabic presentation forms A More Arabic presentation forms: U+FE70 to U+FEFF - Arabic presentation forms B
private static readonly Regex _matchArabicHebrew =
new Regex(@"[\u0600-\u06FF,\u0590-\u05FF]", RegexOptions.IgnoreCase | RegexOptions.Compiled);
public static bool ContainsRtlFarsi(this string txt)
{
return !string.IsNullOrEmpty(txt) && _matchArabicHebrew.IsMatch(txt);
} 
C:\Users\Vahid>dotnet --version 1.0.0-preview2-003121
.NET Core -> ASP.NET Core Web Application (.NET Core) -> Select `Empty` Template
{
"projects": [ "src", "test" ],
"sdk": {
"version": "1.0.0-preview2-003121"
}
} 
// load the image and convert it to grayscale
var image = new Mat(fileName);
if (rotation != 0)
{
rotateImage(image, image, rotation, 1);
}
if (debug)
{
Cv2.ImShow("Source", image);
Cv2.WaitKey(1); // do events
}
var gray = new Mat();
var channels = image.Channels();
if (channels > 1)
{
Cv2.CvtColor(image, gray, ColorConversion.BgrToGray);
}
else
{
image.CopyTo(gray);
} // compute the Scharr gradient magnitude representation of the images
// in both the x and y direction
var gradX = new Mat();
Cv2.Sobel(gray, gradX, MatType.CV_32F, xorder: 1, yorder: 0, ksize: -1);
//Cv2.Scharr(gray, gradX, MatType.CV_32F, xorder: 1, yorder: 0);
var gradY = new Mat();
Cv2.Sobel(gray, gradY, MatType.CV_32F, xorder: 0, yorder: 1, ksize: -1);
//Cv2.Scharr(gray, gradY, MatType.CV_32F, xorder: 0, yorder: 1);
// subtract the y-gradient from the x-gradient
var gradient = new Mat();
Cv2.Subtract(gradX, gradY, gradient);
Cv2.ConvertScaleAbs(gradient, gradient);
if (debug)
{
Cv2.ImShow("Gradient", gradient);
Cv2.WaitKey(1); // do events
} 
// blur and threshold the image
var blurred = new Mat();
Cv2.Blur(gradient, blurred, new Size(9, 9));
var threshImage = new Mat();
Cv2.Threshold(blurred, threshImage, thresh, 255, ThresholdType.Binary);
if (debug)
{
Cv2.ImShow("Thresh", threshImage);
Cv2.WaitKey(1); // do events
}
// construct a closing kernel and apply it to the thresholded image
var kernel = Cv2.GetStructuringElement(StructuringElementShape.Rect, new Size(21, 7));
var closed = new Mat();
Cv2.MorphologyEx(threshImage, closed, MorphologyOperation.Close, kernel);
if (debug)
{
Cv2.ImShow("Closed", closed);
Cv2.WaitKey(1); // do events
}
// perform a series of erosions and dilations
Cv2.Erode(closed, closed, null, iterations: 4);
Cv2.Dilate(closed, closed, null, iterations: 4);
if (debug)
{
Cv2.ImShow("Erode & Dilate", closed);
Cv2.WaitKey(1); // do events
} 
//find the contours in the thresholded image, then sort the contours
//by their area, keeping only the largest one
Point[][] contours;
HiearchyIndex[] hierarchyIndexes;
Cv2.FindContours(
closed,
out contours,
out hierarchyIndexes,
mode: ContourRetrieval.CComp,
method: ContourChain.ApproxSimple);
if (contours.Length == 0)
{
throw new NotSupportedException("Couldn't find any object in the image.");
}
var contourIndex = 0;
var previousArea = 0;
var biggestContourRect = Cv2.BoundingRect(contours[0]);
while ((contourIndex >= 0))
{
var contour = contours[contourIndex];
var boundingRect = Cv2.BoundingRect(contour); //Find bounding rect for each contour
var boundingRectArea = boundingRect.Width * boundingRect.Height;
if (boundingRectArea > previousArea)
{
biggestContourRect = boundingRect;
previousArea = boundingRectArea;
}
contourIndex = hierarchyIndexes[contourIndex].Next;
}
var barcode = new Mat(image, biggestContourRect); //Crop the image
Cv2.CvtColor(barcode, barcode, ColorConversion.BgrToGray);
Cv2.ImShow("Barcode", barcode);
Cv2.WaitKey(1); // do events 
PM> Install-Package ZXing.Net
private static string getBarcodeText(Mat barcode)
{
// `ZXing.Net` needs a white space around the barcode
var barcodeWithWhiteSpace = new Mat(new Size(barcode.Width + 30, barcode.Height + 30), MatType.CV_8U, Scalar.White);
var drawingRect = new Rect(new Point(15, 15), new Size(barcode.Width, barcode.Height));
var roi = barcodeWithWhiteSpace[drawingRect];
barcode.CopyTo(roi);
Cv2.ImShow("Enhanced Barcode", barcodeWithWhiteSpace);
Cv2.WaitKey(1); // do events
return decodeBarcodeText(barcodeWithWhiteSpace.ToBitmap());
}
private static string decodeBarcodeText(System.Drawing.Bitmap barcodeBitmap)
{
var source = new BitmapLuminanceSource(barcodeBitmap);
// using http://zxingnet.codeplex.com/
// PM> Install-Package ZXing.Net
var reader = new BarcodeReader(null, null, ls => new GlobalHistogramBinarizer(ls))
{
AutoRotate = true,
TryInverted = true,
Options = new DecodingOptions
{
TryHarder = true,
//PureBarcode = true,
/*PossibleFormats = new List<BarcodeFormat>
{
BarcodeFormat.CODE_128
//BarcodeFormat.EAN_8,
//BarcodeFormat.CODE_39,
//BarcodeFormat.UPC_A
}*/
}
};
//var newhint = new KeyValuePair<DecodeHintType, object>(DecodeHintType.ALLOWED_EAN_EXTENSIONS, new Object());
//reader.Options.Hints.Add(newhint);
var result = reader.Decode(source);
if (result == null)
{
Console.WriteLine("Decode failed.");
return string.Empty;
}
Console.WriteLine("BarcodeFormat: {0}", result.BarcodeFormat);
Console.WriteLine("Result: {0}", result.Text);
var writer = new BarcodeWriter
{
Format = result.BarcodeFormat,
Options = { Width = 200, Height = 50, Margin = 4},
Renderer = new ZXing.Rendering.BitmapRenderer()
};
var barcodeImage = writer.Write(result.Text);
Cv2.ImShow("BarcodeWriter", barcodeImage.ToMat());
return result.Text;
} 
var barcodeClone = barcode.Clone();
var barcodeText = getBarcodeText(barcodeClone);
if (string.IsNullOrWhiteSpace(barcodeText))
{
Console.WriteLine("Enhancing the barcode...");
//Cv2.AdaptiveThreshold(barcode, barcode, 255,
//AdaptiveThresholdType.GaussianC, ThresholdType.Binary, 9, 1);
//var th = 119;
var th = 100;
Cv2.Threshold(barcode, barcode, th, 255, ThresholdType.ToZero);
Cv2.Threshold(barcode, barcode, th, 255, ThresholdType.Binary);
barcodeText = getBarcodeText(barcode);
}
Cv2.Rectangle(image,
new Point(biggestContourRect.X, biggestContourRect.Y),
new Point(biggestContourRect.X + biggestContourRect.Width, biggestContourRect.Y + biggestContourRect.Height),
new Scalar(0, 255, 0),
2);
if (debug)
{
Cv2.ImShow("Segmented Source", image);
Cv2.WaitKey(1); // do events
}
Cv2.WaitKey(0);
Cv2.DestroyAllWindows(); 
var result = _onlinePayment.Request(Gateways.Mellat, 123, 25000, "http://www.mywebsite.com/foo/bar/");
var result = _onlinePayment.Request(invoice =>
{
invoice
.SetTrackingNumber(123)
.SetAmount(25000)
.SetCallbackUrl("http://www.mywebsite.com/foo/bar/")
.UseGateway(Gateways.Mellat);
}); var result = _onlinePayment.Request(invoice =>
{
invoice
.UseAutoIncrementTrackingNumber()
.SetAmount(25000)
.SetCallbackUrl("http://www.mywebsite.com/foo/bar/")
.UseGateway(Gateways.Mellat);
}); var result = _onlinePayment.Request(invoice =>
{
invoice
.UseAutoRandomTrackingNumber()
.SetAmount(25000)
.SetCallbackUrl("http://www.mywebsite.com/foo/bar/")
.UseGateway(Gateways.Mellat);
}); public class MyTrackingNumberProvider : ITrackingNumberProvider
{
public Task<long> ProvideAsync(CancellationToken cancellationToken = new CancellationToken())
{
// تولید و برگشت کد در اینجا
}
} var result = _onlinePayment.Request(invoice =>
{
invoice
.UseTrackingNumberProvider<MyTrackingNumberProvider>()
// یا
.UseTrackingNumberProvider(new MyTrackingNumberProvider())
// یا
.UseTrackingNumberProvider(services => new MyTrackingNumberProvider())
}); services.AddParbad()
.ConfigureGateways(gateways =>
{
gateways
.AddParbadVirtual()
.WithOptions(options => options.GatewayPath = "/MyVirtualGateway");
}); public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: "{controller=Home}/{action=Index}/{id?}");
});
// ثبت درگاه مجازی
app.UseParbadVirtualGateway();
} public void Configuration(IAppBuilder app)
{
var parbad = ParbadBuilder.CreateDefaultBuilder()
.ConfigureGateways(gateways =>
{
gateways
.AddParbadVirtual()
.WithOptions(options => options.GatewayPath = "/MyVirtualGateway");
})
.Build();
app.UseParbadVirtualGateway(parbad.Services);
} var result = _onlinePayment.Request(Gateways.ParbadVirtualGateway, 123, 25000, "http://www.mywebsite.com/foo/bar/");
services.AddParbad()
.ConfigureGateways(gateways =>
{
gateways
.AddMellat()
.WithOptions(options =>
{
options.TerminalId = 123;
options.UserName = "abc";
options.UserPassword = "xyz;
)
.WithProxy(new Uri("Proxy Server URL"), "UserName", "Password");
}); public class MyTokenProvider : IPaymentTokenProvider
{
public Task<string> ProvideTokenAsync(Invoice invoice, CancellationToken cancellationToken = new CancellationToken())
{
// تولید و برگرداندن توکن در اینجا
}
public Task<string> RetrieveTokenAsync(CancellationToken cancellationToken = new CancellationToken())
{
// خواندن و برگرداندن توکن در اینجا
}
} services.AddParbad()
.ConfigurePaymentToken(builder => builder.AddPaymentTokenProvider<MyTokenProvider>(ServiceLifetime.Transient)); 