Dynamsoft Forums

Hi,
I encountered some problems when i programimg with COM SDK.
when i use ISAWVSDK::Login method to login the database, it returns 16000 which means "VSS unspecified error".
But when i use the same ip,port,username,password, and databasename via SAW Client App, it works well.
How can i do to resolve it?

Thanks.
Ryan.

Hi Ryan,

For this issue, please take a look at this FAQ item:
http://www.dynamsoft.com/Products/SAW_F ... ngdatabase

Thanks.

er... But It works well when I login the database via SAW Client Application. Does SAW Client use the same method in COM SDK?

Yes. SAW SDK uses the same methond as SAW Client on the server side.

To better pinpoint the cause of the problem, would you please send us the result description returned by the ConnectToServer method? Also, you can let us know your code.

For more information about the ConnectToServer method, you can refer to the SDK help document.

Thanks.

Hi, I use the SDK in C++ programs.

//ConnectToServer
VARIANT_BOOL blConnect;
//Enum_EncryptType erpType;
VARIANT_BOOL olyTrail,Canceled;
long LeftTrialDays;
BSTR description;
BSTR bstrIP = m_strIP.AllocSysString();

long rlt = saw->ConnectToServer(bstrIP,(long)nPort,&blConnect,&encryptType,&olyTrail,&LeftTrialDays,&Canceled,&description,Enum_NOPROXY,OLESTR(""),0,OLESTR(""),OLESTR(""));
::SysFreeString(bstrIP);
::SysFreeString(description);
if(rlt == 0)
{
//Return values
//blConnect = -1
//encryptType = Enum_Unencrypted
//olyTrail = LeftTrialDays = 0
//Canceled
//description = "Connected to server successfully"

//Login
ISAWVKeyInfoSetPtr KeyInfoSet = NULL;
if(KeyInfoSet.CreateInstance(__uuidof(SAWVKeyInfoSet)) != S_OK)
return;
VARIANT_BOOL MustChangePassword,Canceled;
long ExpireDays,rlt;
BSTR description;
BSTR bstrName = strName.AllocSysString();
BSTR bstrPwd = strPwd.AllocSysString();
BSTR bstrDB = strDB.AllocSysString();

rlt = saw->Login(bstrName,bstrPwd,bstrDB,KeyInfoSet,&MustChangePassword,&ExpireDays,&Canceled,&description);
::SysFreeString(bstrName);
::SysFreeString(bstrPwd);
::SysFreeString(bstrDB);
::SysFreeString(description);
KeyInfoSet.Release();

//return value
//rlt = 16000 means "VSS unspecified error." in SDK's error lists.
//MustChangePassword = -1
//Canceled = 0
//ExpireDays = -858993460
//description = "Invalid access code (bad parameter)."

Thanks for your help.

We tested your code. It works fine on our machine.

>"Invalid access code (bad parameter)."
Please double check that you assign the correct user name, password and database in the function.

Thanks.