find a string in a memory mapped txt

Hi to all

I have a txt file, which contains many strings like the followings:
KEY1 STRING1
KEY2 STRING2
......

I have to search for the KEY* value and I have to copy the corresponding STRING* value.
I mapped it into memory with CreateFile, CreateFileMapping and MapViewOfFile.
Actually I read a single row of the mapped file and search for value KEY* inside of it: if the match results positive, I copy STRING* value. Otherwise I continue in my research.

Is this the best way I have? There is something better? Something like function "fseek" which could work in memory mapped file?

Thank you so much

Quote:

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Originally Posted by motobizio

...Is this the best way I have?

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Not sure what is the “best” here, but I would try strstr().

Thank you for your answer!
This function results very useful!
I will try to use it!

Thank you again