Hexadecimals in ibwrt() GPIB

Hi 

i need to write the following Hexa Decimal data to my GPIB instruement.

4 ,4d ,6a ,f8 ,e6 ,f5,a9 ,2d ,e8,f ,6f ,26 ,f8

Curretly am using CVI for my Project

I have all above numbers in a integer array, i need a data on bus as like the attached analyzer data.

i tried converting these to char's and send in ibwrt() but i coudnt get ther Result as desired.

please do let me know ,how the above hexadecimal values can be write in GPIB bus as like the attached analyzer data?

also please let me know how the conversion can be done for char array for the above numbers.

Thanks in advance

 your help is highly appreciated.