Project link error

[Jason]

Dear NI,
I tried to insert a function which is called RegQueryValue(HKEY hkey, LPCTSTR lpSubKey, LPTSTR lpValue, PLONG lpcbValue) but in the end when I want to built it, it come out a message stated "Undefined symbol '_RegQueryValueA@16' referenced in "CDRW.C"". In addition, I do include winreg.h in the CDRW.c file. Is there anything I haven't do so that it come out such message? Hope to hear from you all soon. Thanks.

[msaxon]

You need to include the Windows SDK library 'Advapi32.lib' in your project.

Note that according to Microsoft RegQueryValue() is obsolete now, you ought to be using RegQueryValueEx() instead.

Martin.

[Al_S]

Did you add Advapi32.lib to your project?
Include windows.h and winreg.h

The Programmer's Toolbox (included in CVI) includes some registry functions that may be easier to use.
Add ...\CVI\toolslib\toolbox\toolbox.fp to your project.
#include "toolbox.h" in your .c file.
Look at the Windows Registry functions in the Programmer's Toolbox Instrument.
Look and the sample project ...\CVI\samples\apps\regadd\RegAdd.prj

[Jason]

Dear all,
Thanks for your reply. In fact, I am just a begginer as a CVI user. May I know how to include 'Advapi32.lib' in my project? Thanks.

[CVI-User]

In the menu of the project window go: edit >> add files to project >> library (*.lib)
Advapi32.lib is found in cvi\sdk\lib

[Jason]

Dear all,
Thanks for replying. Problem solved.