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C++ API Reference - Settings

Method Description
AppendSettingsFromString Appends LabelRecognitionParameter settings in a string to the SDK object.
AppendSettingsFromFile Appends LabelRecognitionParameter settings in a file to the SDK object.
ClearAppendedSettings Clears appended LabelRecognitionParameter settings.
GetModeArgument Get argument value for the specified mode parameter.
GetRuntimeSettings Gets the current settings and saves it into a struct.
OutputSettingsToFile Outputs LabelRecognitionParameter settings into a file (JSON file).
ResetRuntimeSettings Resets the runtime settings.
SetModeArgument Set argument value for the specified mode parameter.
UpdateReferenceRegionFromBarcodeResults Updates reference region which is defined with source type DLR_LST_BARCODE.
UpdateRuntimeSettings Updates runtime settings with a given struct.

GetRuntimeSettings

Get current settings and save them into a DLRRuntimeSettings struct.

int dynamsoft::dlr::CLabelRecognition::GetRuntimeSettings (DLRRuntimeSettings* settings)

Parameters [in,out] settings The struct of runtime settings.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
DLRRuntimeSettings settings;
int errorCode = recognizer->GetRuntimeSettings(&settings);
delete recognizer;

 

UpdateRuntimeSettings

Update runtime settings with a given DLRRuntimeSettings struct.

int dynamsoft::dlr::CLabelRecognition::UpdateRuntimeSettings (DLRRuntimeSettings* settings, char errorMsgBuffer[] = NULL, const int errorMsgBufferLen = 0)

Parameters [in] settings The struct of runtime settings.
[in,out] errorMsgBuffer Optional The buffer is allocated by caller and the recommended length is 256.The error message will be copied to the buffer.
[in] errorMsgBufferLen Optional The length of the allocated buffer.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
DLRRuntimeSettings settings;
int errorCode = recognizer->GetRuntimeSettings(&settings);
settings.linesCount = 1;
char errorMessage[256];
recognizer->UpdateRuntimeSettings(&settings, errorMessage, 256);
delete recognizer;

 

ResetRuntimeSettings

Reset all runtime settings to default values.

int dynamsoft::dlr::CLabelRecognition::ResetRuntimeSettings ()

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
DLRRuntimeSettings settings;
int errorCode = recognizer->GetRuntimeSettings(&settings);
settings.linesCount = 1;
recognizer->UpdateRuntimeSettings(&settings);
recognizer->ResetRuntimeSettings(recognizer);
delete recognizer;

 

AppendSettingsFromString

Append a new template string to the current label recognition instance.

int dynamsoft::dlr::CLabelRecognition::AppendSettingsFromString (const char* content, char errorMsgBuffer[] = NULL, const int errorMsgBufferLen = 0)

Parameters [in] content A JSON string that represents the content of the settings.
[in,out] errorMsgBuffer Optional The buffer is allocated by caller and the recommending length is 256. The error message will be copied to the buffer.
[in] errorMsgBufferLen Optional The length of allocated buffer.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
char errorMessage[256];
recognizer->AppendSettingsFromString("{\"LabelRecognitionParameter\":{\"Name\":\"P1\", \"RegionPredetectionModes\":[{\"Mode\":\"DLR_RPM_GENERAL_HSV_CONTRAST\"}], \"ReferenceRegionNameArray\": [\"R1\"]},\"ReferenceRegion\":{\"Name\":\"R1\",\"Localization\":{\"SourceType\":\"DLR_LST_PREDETECTED_REGION\",\"RegionPredetectionModesIndex\":0},\"TextAreaNameArray\":[\"T1\"]},\"TextArea\":{\"Name\":\"T1\",\"CharacterModelName\":\"Number\"}}", errorMessage, 256);
delete recognizer;

 

AppendSettingsFromFile

Appends LabelRecognitionParameter settings in a file to the SDK object.

int dynamsoft::dlr::CLabelRecognition::AppendSettingsFromFile (const char* filePath, char errorMsgBuffer[] = NULL, const int errorMsgBufferLen = 0)

Parameters [in] filePath The settings file path.
[in,out] errorMsgBuffer Optional The buffer is allocated by caller and the recommending length is 256. The error message will be copied to the buffer.
[in] errorMsgBufferLen Optional The length of allocated buffer.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
char errorMessage[256];
recognizer->AppendSettingsFromString("your file path", errorMessage, 256);
delete recognizer;

 

OutputSettingsToFile

Outputs runtime settings and save them into a settings file (JSON file).

int dynamsoft::dlr::CLabelRecognition::OutputSettingsToFile (const char* filePath, const char* templateName)

Parameters [in] filePath The path of the output file which stores current settings.
[in] templateName A unique name for declaring current runtime settings.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
char errorMessageAppend[256];
recognizer->AppendSettingsFromString("{\"LabelRecognitionParameter\":{\"Name\":\"P1\", \"RegionPredetectionModes\":[{\"Mode\":\"DLR_RPM_GENERAL_HSV_CONTRAST\"}], \"ReferenceRegionNameArray\": [\"R1\"]},\"ReferenceRegion\":{\"Name\":\"R1\",\"Localization\":{\"SourceType\":\"DLR_LST_PREDETECTED_REGION\",\"RegionPredetectionModesIndex\":0},\"TextAreaNameArray\":[\"T1\"]},\"TextArea\":{\"Name\":\"T1\",\"CharacterModelName\":\"Number\"}}", errorMessageAppend, 256);
recognizer->OutputSettingsToFile("C:\\Program Files (x86)\\Dynamsoft\\{Version number}\\Templates\\CurrentRuntimeSettings.json", "currentRuntimeSettings");
delete recognizer;

 

ClearAppendedSettings

Clear all appended parameter settings of the current label recognition instance.

void dynamsoft::dlr::CLabelRecognition::ClearAppendedSettings ()

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
recognizer->ClearAppendedSettings();

UpdateReferenceRegionFromBarcodeResults

Updates reference region which is defined with source type DLR_LST_BARCODE.

int dynamsoft::dlr::CLabelRecognition::UpdateReferenceRegionFromBarcodeResults (const TextResultArray* barcodeResults, const char* templateName)

Parameters [in] barcodeResults The barcode results used to localize reference region.
[in] templateName The template name. A template name is the value of key LabelRecognitionParameter.Name defined in JSON formatted settings. If no template name is specified, current runtime settings will be used.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
char errorMessageAppend[256];
recognizer->AppendSettingsFromString("{\"LabelRecognitionParameter\":{\"Name\":\"P1\", \"RegionPredetectionModes\":[{\"Mode\":\"DLR_RPM_GENERAL_HSV_CONTRAST\"}], \"ReferenceRegionNameArray\": [\"R1\"]},\"ReferenceRegion\":{\"Name\":\"R1\",\"Localization\":{\"SourceType\":\"DLR_LST_BARCODE\"},\"TextAreaNameArray\":[\"T1\"]},\"TextArea\":{\"Name\":\"T1\",\"CharacterModelName\":\"Number\"}}", errorMessageAppend, 256);
//Get barcodeResults from Dynamsoft Barcode Reader SDK
recognizer->UpdateReferenceRegionFromBarcodeResults(barcodeResults, "P1");
delete recognizer;

 

SetModeArgument

Set argument value for the specified mode parameter.

int dynamsoft::dlr::CLabelRecognition::SetModeArgument (const char* modesName, const int index, const char* argumentName, const char* argumentValue, char errorMsgBuffer[] = NULL,  const int errorMsgBufferLen = 0)

Parameters [in] modesName The mode parameter name to set argument.
[in] index The array index of mode parameter to indicate a specific mode.
[in] argumentName The name of the argument to set.
[in] argumentValue The value of the argument to set.
[in,out] errorMsgBufferOptional The buffer is allocated by the caller and the recommended length is 256. The error message will be copied to the buffer.
[in] errorMsgBufferLenOptional The length of the allocated buffer.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Remark

Check follow link for available modes and arguments:

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
DLRRuntimeSettings settings;
int errorCode = recognizer->GetRuntimeSettings(&settings);
settings.regionPredetectionModes[0] = DLR_RPM_GENERAL_RGB_CONTRAST;
char errorMessage[256];
recognizer->UpdateRuntimeSettings(&settings, errorMessage, 256);
recognizer->SetModeArgument("RegionPredetectionModes", 0, "AspectRatioRange", "100", errorMessage, 256);
delete recognizer;

 

GetModeArgument

Get argument value for the specified mode parameter.

int dynamsoft::dlr::CLabelRecognition::GetModeArgument (const char* modesName, const int index, const char* argumentName, char valueBuffer[], const int valueBufferLen, char errorMsgBuffer[] = NULL, const int errorMsgBufferLen = 0)

Parameters
[in] modesName The mode parameter name to get argument.
[in] index The array index of mode parameter to indicate a specific mode.
[in] argumentName The name of the argument to get.
[in,out] valueBuffer The buffer is allocated by caller and the recommended length is 480. The argument value would be copied to the buffer.
[in] valueBufferLen The length of allocated buffer.
[in,out] errorMsgBufferOptional The buffer is allocated by the caller and the recommended length is 256. The error message will be copied to the buffer.
[in] errorMsgBufferLenOptional The length of the allocated buffer.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Remark

Check follow link for available modes and arguments:

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
DLRRuntimeSettings settings;
int errorCode = recognizer->GetRuntimeSettings(&settings);
settings.regionPredetectionModes[0] = DLR_RPM_GENERAL_RGB_CONTRAST;
char errorMessage[256];
char argumentValue[480];
recognizer->UpdateRuntimeSettings(&settings, errorMessage, 256);
recognizer->SetModeArgument("RegionPredetectionModes", 0, "AspectRatioRange", "100", errorMessage, 256);
recognizer->GetModeArgument("RegionPredetectionModes", 0, "AspectRatioRange", argumentValue, 480, errorMessage, 256);
delete recognizer;

 

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