problem with matlab2016 load C dll

The NNow i am trying to control NI instrument by matlab code. But there are some problems.If i use the line 6 words, the matlab shows

"warning no reference to header "niDigital" added with addheader was found in source"

"warning no reference to header "ivi" added with addheader was found in source"

but if i sue

[a,b]=loadlibrary(dll_file1,lib_file2_func,'includepath',data_trace); the matlab shows:

" fatal error: ivi.h: No such file or directory"

1. clc
2. dll_file1 = 'xxxxx\niDigital_64.dll';
3. lib_file1_typedef = 'xxxxx\IviVisaType.h';
4. lib_file2_func = 'xxxxx\niDigital.h';
5. data_trace = 'xxxxx\IVI\Include';
6. [a,b]=loadlibrary(dll_file1,lib_file1_typedef,'addheader','ivi.h','addheader',lib_file2_func,'includepath',data_trace)
7. libfunctions('niDigital_64','-full')

the attachment is the dll and header file.

thanks so much