File problem

[LLAMEDOSO]

I want to write a string with a binary 0 at the front to a file. 

The attached file shows what I want to do but it does not work.

I'm a newbie to Autoit, finding it very good but the file operations seem difficult to me.

Also miss the astr = bstr[1.. 7] function that's in other languages.

 

Snppet.au3

[boomingranny]

do you mean you want Ascii character code 0 (the first one in the ascii table?)

Chr(0)

should do it

Edited November 15, 2018 by boomingranny
made answer a bit clearer

[LLAMEDOSO]

Thank you, I'd forgotten that, long time since I used C. Been using  the Euphoria language for some time.