write series of 0x0 in GPIB

Hi,

How  0x0 can be wriiten to GPIB, i have a requiremnt tro write a series of 0x0's.

i may not be able to use this "ibwrt(cpi_handle,\x0\x0\x0\x0,4)" since the 0's are dynamic from a file.

since the ASCII equilent is NULL am not able to stor it in char array as well

please suggest a way to do this.

Thanks in advance