i just write a code to call a dll which is written by Labview. but when i finished ,it show the error:"labviewv.lib could not locate "ni_variable_UnregisterProviderCallback"",
who can tell me what's wrong?
i use labview to build a dll to measure audio SNR,but when i use my program to call this dll ,its result is diffrent from the procedure result in labview,what is the matter with it? my computer program is written in C++bulider.
when i use the NIDAQ.dll,in the labview .it can run and show it data ,but if i call this dll,the result is null ,what's wrong?
NIDAQ_070528.zip
test_dll.vi