License Methods

Method	Description
`InitLicense`	Initializes license key and activate the SDK.
`GetIdleInstancesCount`	Gets available instances count when charging by concurrent instances count.
`InitLicenseFromServer`	`Deprecated`
`InitLicenseFromLicenseContent`	`Deprecated`
`OutputLicenseToString`	`Deprecated`
`InitDLSConnectionParameters`	`Deprecated`
`InitLicenseFromDLS`	`Deprecated`
`InitLTSConnectionParameters`	`Deprecated`
`InitLicenseFromLTS`	`Deprecated`

InitLicense

Initializes license key and activate the SDK.

static EnumErrorCode Dynamsoft.DBR.BarcodeReader.InitLicense (string license, out string errorMsg)

Parameters
[in] licenseKey <string> : The license key of Barcode Reader.
[out] errorMsg <string> : The detailed error message.

Return Value
Returns error code (returns DBR_SUCCESS if the function operates successfully).
You can check errorMsg to get detailed error message.

Code Snippet

string errorMsg;
BarcodeReader.InitLicense("YOUR-LICENSE-KEY", out errorMsg);
BarcodeReader reader = new BarcodeReader();
// add further process

GetIdleInstancesCount

Gets available instances count when charging by concurrent instances count.

static int Dynamsoft.DBR.BarcodeReader.GetIdleInstancesCount()

Return Value
Returns available instances count.

0: There is no space for new instance
-1: The available count needs to be updated from server by calling InitLicense.
N ( N > 0 ): N more instances can be created.

Code Snippet

//...
int count = BarcodeReader.GetIdleInstancesCount();
if(count > 0)
{
  //create instance and process further
}
if(count < 0)
{
  //call InitLicense
  //create instance and process further
}
if(count = 0)
{
  //waiting for available instances 
}