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Editorial Team
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Asked: 2026-05-15T16:27:49+00:00

Ok, let’s see if this all makes sense. Today, as I began working on

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Ok, let’s see if this all makes sense. Today, as I began working on a small project, I ran into an error I can’t seem to get over. The function of the program I am working on is to read data from a pipe (which is the output of another program) and update an HWND (“edit”) control dialog using WinAPI. Now, I’ve been successful at updating the dialog: sort of. If I send the character buffer from the ::ReadFile() function to the dialog, I get the proper output but with a ton of extra characters I don’t want. So how can I simply strip it to the output I’m looking for, or is there a better way to accomplish what I’m attempting? Perhaps take the output and WriteFile(); or something similar to decipherable text?

Here is what’s happening:

some output…’Hola Mondo’ means… Hello word!ÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌÌ$

Here is what I want to happen:

some output…’Hola Mondo’ means…

Hello word!

Thanks so much for your help!

Regards,
Dennis M.

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1 Answer

  1. Editorial Team

    Check the “Bytes Read” output argument of ReadFile so you know how long the string is, then put a terminating NUL (`’\0′) character at that offset.

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