CLicenseManager Class

class dynamsoft::core::CLicenseManager 

GetIdleInstancesCount

Gets available instances count when charging by concurrent instances count.

static int dynamsoft::core::CLicenseManager::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 = dynamsoft::core::CLicenseManager::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 
}

InitLicense

Sets the license key and activates the SDK.

static int dynamsoft::core::CLicenseManager::InitLicense(const char *license, char errorMsgBuffer[], const int errorMsgBufferLen) 

Parameters

[in] pLicense The license key.

[in, out] errorMsgBuffer The buffer is allocated by caller and the recommended length is 256. The error message will be copied to the buffer.

[in] errorMsgBufferLen The length of the allocated buffer.

Return Value

Returns error code (returns 0 if the function operates successfully).

Code Snippet

int errorCode = 0;
char szErrorMsg[256];
errorCode = CLicenseManager::InitLicense("YOUR-LICENSE-KEY", szErrorMsg, 256);
if (errorCode != DM_OK)
    cout << szErrorMsg << endl;