Where is qlmlicense.xml?

Erik Gawtry

July 09, 2017 23:40

I have an activated license on a machine, but no idea where qlmlicense.xml is located. It is NOT in the documents folder and a drive search does not find it. Where is qlmlicense.xml?

Thanks,

-Erik

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13 comments

Official comment

Soraco Technologies July 10, 2017 13:35

Hi Erik

There's no qlmLicense.xml for Windows C++ apps. The qlmLicense.xml is just used for mobile / cross platform apps.

For C++ windows apps, the license is stored typically in the registry although it can also be stored on the file system.

For more information about where keys are stored, check this article.

John

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Erik Gawtry July 10, 2017 17:20

Okay, thanks. I guess I need to rewrite that example that you sent me.

-Erik

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Soraco Technologies July 10, 2017 17:21

You should not need to... can you please remind me which example I sent you.

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Erik Gawtry July 10, 2017 17:46

Okay, I have this but it always fails the Validate with "Data at the root level is invalid. Line 1, position 1." (XXXXXX is the guid), it IS reading the registry entry properly :

HKEY hKey;
 
if( ::RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Classes\\CLSID\\{XXXXXXX}\\Elevation", 0, KEY_READ, &hKey) != ERROR_SUCCESS )
{
	return NULL;
}
WCHAR wszData[4096];
DWORD dwType = REG_SZ;
DWORD cbData = sizeof(wszData);
::RegGetValueW(hKey, L"", NULL, RRF_RT_REG_SZ, &dwType, (PVOID)wszData, &cbData);
::RegCloseKey(hKey);
 
CComBSTR bstrError;
if (productProperties->ValidateSignature(wszData, _bstr_t(rsaPublicKey), &bstrError) == VARIANT_FALSE)
{
	return NULL;
}
else
{
	productProperties->Deserialize(wszData);
 
	IQlmProductPropertyPtr pp = productProperties->GetProperty(_bstr_t("engineering"), _bstr_t("module_eng"));
 
	OutputDebugString((LPCWSTR) (pp->PropValue.pbstrVal));
 
}

Erik Gawtry July 10, 2017 17:54

BTW, The original you sent me had this at the top:

// store the license file - you may want to customize the destination folder
TCHAR docsFolder[MAX_PATH];
SHGetFolderPath(NULL, CSIDL_MYDOCUMENTS, NULL, 0, docsFolder);
 
CString licenseFile = docsFolder + CString("\\") + productPropertiesFileName;
 
std::ifstream inFile (licenseFile); //open the input file
 
std::stringstream strStream;
 
strStream << inFile.rdbuf();//read the file
string str = strStream.str();//str holds the content of the file

Soraco Technologies July 10, 2017 17:59

I understand. The sample is the right one. The license file referred to here only applies if your are using Custom Product Properties. Let me know if you are.

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Erik Gawtry July 10, 2017 18:05

By "custom" you mean the ones I added when I created the license in Design Products? If so, then yes.

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Erik Gawtry July 10, 2017 19:07

And I still need to know what to plug into the ValidateSignature().

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Soraco Technologies July 10, 2017 20:24 (Edited July 10, 2017 20:32)

Ok.

As per the sample that I sent you, the LicenseValidator class will call WriteProductProperties if the license validation succeeds. Note that you can call WriteProductProperties any time you want. The code I provided you is just an example.

If you look at the WriteProductProperties function in the LicenseValidator class, you will see that this function will create an xml file in the MyDocuments folder. Feel free to change the location of the file as you see fit.

Every time your application starts up, or whenever you want, you can call LicenseValidator::ReadProductProperties to read the license file.

Both ReadProductProperties and WriteProductProperties call ValidateSignature so you do not need to call ValidateSignature directly.

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Soraco Technologies July 10, 2017 20:36

In the code that you sent me, I'm not sure what you are reading from the registry.

The Product Properties are stored in an XML file by WriteProductProperties.The code that I sent you should work fine.

I'd be happy to setup a screen sharing session to expedite this.

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Erik Gawtry July 10, 2017 22:03

I figured it out based on what you said above. Works great now.

BSTR bstrResponse;
BSTR bstrProps = theApp.m_lv->license->GetProductProperties(_bstr_t(""), _bstr_t(theApp.m_lv->activationKey), &bstrResponse);
 
theApp.m_lv->productProperties->Deserialize(bstrProps);
 
 
IQlmProductPropertyPtr pp = theApp.m_lv->productProperties->GetProperty(_bstr_t("category"), _bstr_t("callsign"));
 
if( pp )
	StringCchCopyW(wszCallsign, ARRAYSIZE(wszCallsign), (LPCWSTR) (pp->PropValue.pbstrVal));
else
{
LicensePropertyError:
	AfxMessageBox(L"Invalid License", MB_OK|MB_ICONEXCLAMATION);
	FreeLicenseResources ();
	SetCurrentDirectory(wszSavePath);
	ExitProcess(0);
}

Erik Gawtry July 10, 2017 22:38

Thank you for all your help over the last couple of weeks. Support was great.

I wish there had been some basic documentation so I didn't need the aforementioned support. I may write up a "Getting Started" and send it to you to add to your website. People shouldn't have to jump in with no basic knowledge of how everything works. Development went from about two days to three weeks.

-Erik

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Soraco Technologies July 11, 2017 11:40

Glad you got it working and thanks for the feedback Erik.

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