public static void SDUsageSample()
{
try
{
MappingService scriptDetection = new MappingService(
MappingAvailableServices.ScriptDetection);
using (MappingPropertyBag bag =
scriptDetection.RecognizeText("This is English. АБВГД.", null))
{
MappingDataRange[] ranges = bag.GetResultRanges();
Console.WriteLine("Recognized {0} script ranges", ranges.Length);
NullTerminatedStringFormatter formatter = new NullTerminatedStringFormatter();
foreach (MappingDataRange range in ranges)
{
Console.WriteLine("Range from {0} to {1}, script {2}",
range.StartIndex, range.EndIndex, range.FormatData(formatter));
}
}
}
catch (LinguisticException exc)
{
Console.WriteLine("Error calling ELS: {0}, HResult: {1}",
exc.ResultState.ErrorMessage, exc.ResultState.HResult);
}
}
public void ConstructorWithValidServiceGuidSucceeds(string service)
{
Guid guid = ServiceGuidFromServiceString(service);
MappingService s = new MappingService(guid);
Assert.Equal<Guid>(s.Guid, guid);
}
public void ConstructorWithInvalidServiceGuidThrowsLinguisticException(string service)
{
Guid guid = ServiceGuidFromServiceString(service);
Assert.Throws<LinguisticException>(() =>
{
MappingService s = new MappingService(guid);
});
}
public static void LADUsageSample()
{
try
{
MappingService languageDetection = new MappingService(
MappingAvailableServices.LanguageDetection);
using (MappingPropertyBag bag =
languageDetection.RecognizeText("This is English", null))
{
string[] languages = bag.GetResultRanges()[0].FormatData(
new StringArrayFormatter());
foreach (string language in languages)
{
Console.WriteLine("Recognized language: {0}", language);
}
}
}
catch (LinguisticException exc)
{
Console.WriteLine("Error calling ELS: {0}, HResult: {1}",
exc.ResultState.ErrorMessage, exc.ResultState.HResult);
}
}
/// <summary>
/// Retrieves a list of available ELS platform-supported services, along with associated
/// information, according to application-specified criteria.
/// </summary>
/// <param name="options">Optional. A <see cref="MappingEnumOptions">MappingEnumOptions</see> object containing criteria to use during
/// enumeration of services. The application specifies null for this parameter to retrieve all
/// installed services.</param>
/// <returns>An array of <see cref="MappingService">MappingService</see> objects matching the criteria supplied in the options
/// parameter.</returns>
public static MappingService[] GetServices(MappingEnumOptions options)
{
ThrowIfNotWin7();
IntPtr servicePointer = IntPtr.Zero;
UInt32 serviceCount = 0;
UInt32 hresult = 0;
IntPtr guidPointer = IntPtr.Zero;
try
{
if (options != null)
{
Win32EnumOptions enumOptions = options._win32EnumOption;
Nullable<Guid> pGuid = options._guid;
if (pGuid != null)
{
Guid guid = (Guid)pGuid;
guidPointer = Marshal.AllocHGlobal(InteropTools.SizeOfGuid);
Marshal.StructureToPtr(guid, guidPointer, false);
enumOptions._pGuid = guidPointer;
}
hresult = Win32NativeMethods.MappingGetServices(ref enumOptions, ref servicePointer, ref serviceCount);
}
else
{
hresult = Win32NativeMethods.MappingGetServices(IntPtr.Zero, ref servicePointer, ref serviceCount);
}
if (hresult != 0)
{
throw new LinguisticException(hresult);
}
if ((servicePointer == IntPtr.Zero) != (serviceCount == 0))
{
throw new InvalidOperationException();
}
IntPtr[] services = new IntPtr[serviceCount];
ServiceCache.Instance.RegisterServices(ref servicePointer, services);
MappingService[] result = new MappingService[serviceCount];
for (int i = 0; i < serviceCount; ++i)
{
result[i] = new MappingService(services[i]);
}
return result;
}
finally
{
if (servicePointer != IntPtr.Zero)
{
// Ignore the result if an exception is being thrown.
Win32NativeMethods.MappingFreeServicesVoid(servicePointer);
}
if (guidPointer != IntPtr.Zero)
{
Marshal.FreeHGlobal(guidPointer);
}
}
}
/// <summary>
/// Retrieves a list of available ELS platform-supported services, along with associated
/// information, according to application-specified criteria.
/// </summary>
/// <param name="options">Optional. A <see cref="MappingEnumOptions">MappingEnumOptions</see> object containing criteria to use during
/// enumeration of services. The application specifies null for this parameter to retrieve all
/// installed services.</param>
/// <returns>An array of <see cref="MappingService">MappingService</see> objects matching the criteria supplied in the options
/// parameter.</returns>
public static MappingService[] GetServices(MappingEnumOptions options)
{
// Throw PlatformNotSupportedException if not running on Win7 or greater
ThrowIfNotWin7();
IntPtr pService = IntPtr.Zero;
UInt32 dwServiceCount = 0;
UInt32 hResult = 0;
IntPtr guidPtr = IntPtr.Zero;
try
{
if (options != null)
{
Win32EnumOptions enumOptions = options._win32EnumOption;
Nullable<Guid> pGuid = options._guid;
if (pGuid != null)
{
Guid guid = (Guid)pGuid;
guidPtr = Marshal.AllocHGlobal(InteropTools.SizeOfGuid);
Marshal.StructureToPtr(guid, guidPtr, false);
enumOptions._pGuid = guidPtr;
}
hResult = Win32Methods.MappingGetServices(ref enumOptions, ref pService, ref dwServiceCount);
}
else
{
hResult = Win32Methods.MappingGetServices(IntPtr.Zero, ref pService, ref dwServiceCount);
}
if (hResult != 0)
{
throw new LinguisticException(hResult);
}
if ((pService == IntPtr.Zero) != (dwServiceCount == 0))
{
throw new InvalidOperationException();
}
IntPtr[] services = new IntPtr[dwServiceCount];
ServiceCache.Instance.RegisterServices(ref pService, services);
MappingService[] result = new MappingService[dwServiceCount];
for (int i = 0; i < dwServiceCount; ++i)
{
result[i] = new MappingService(services[i]);
}
return result;
}
finally
{
if (pService != IntPtr.Zero)
{
// Ignore the result if an exception is being thrown.
Win32Methods.MappingFreeServices(pService);
}
if (guidPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(guidPtr);
}
}
}
public static void SDUsageSampleAsync()
{
try
{
MappingService scriptDetection = new MappingService(
MappingAvailableServices.ScriptDetection);
MappingRecognizeAsyncResult asyncResult = scriptDetection.BeginRecognizeText(
"This is English. АБВГД.", null, SDSampleCallback, null);
MappingService.EndRecognizeText(asyncResult);
}
catch (LinguisticException exc)
{
Console.WriteLine("Error calling ELS: {0}, HResult: {1}",
exc.ResultState.ErrorMessage, exc.ResultState.HResult);
}
}
public static void CyrlToLatinTransUsageSample1()
{
try
{
MappingService cyrlToLatin = new MappingService(
MappingAvailableServices.TransliterationCyrillicToLatin);
using (MappingPropertyBag bag = cyrlToLatin.RecognizeText("АБВГД.", null))
{
string transliterated = bag.GetResultRanges()[0].FormatData(new StringFormatter());
Console.WriteLine("Transliterated text: {0}", transliterated);
}
}
catch (LinguisticException exc)
{
Console.WriteLine("Error calling ELS: {0}, HResult: {1}",
exc.ResultState.ErrorMessage, exc.ResultState.HResult);
}
}
private string LanguageConverter(Guid serviceGuid, string sourceContent)
{
string transliterated = null;
if ((sourceContent != null) && (sourceContent.Length > 0))
{
try
{
MappingService mapService = new MappingService(serviceGuid);
using (MappingPropertyBag bag = mapService.RecognizeText(sourceContent, null))
{
transliterated = bag.GetResultRanges()[0].FormatData(new StringFormatter());
}
}
catch (LinguisticException exc)
{
ShowErrorMessage(String.Format("Error calling ELS: {0}, HResult: {1}",
exc.ResultState.ErrorMessage, exc.ResultState.HResult));
}
}
return transliterated;
}
[InlineData("TransliterationCyrillicToLatin", "добро hello утро!", 1, 0, 16)] // BUG: possible bug here -- this should be 2 ranges
public void RecognizeText(
string service,
string text,
int expNumberOfDataRanges,
int expStartIndexOfFirstDataRange,
int expEndIndexOfFirstDataRange)
{
MappingService s = new MappingService(ServiceGuidFromServiceString(service));
MappingPropertyBag b = s.RecognizeText(text, null);
MappingDataRange[] rs = b.GetResultRanges();
Assert.Equal<int>(expNumberOfDataRanges, rs.Length);
Assert.Equal<int>(expStartIndexOfFirstDataRange, rs[0].StartIndex);
Assert.Equal<int>(expEndIndexOfFirstDataRange, rs[0].EndIndex);
Assert.Equal<string>("text/plain", rs[0].ContentType); // Win7 ELS services support only "text/plain" as content type
}
