Crimson 3 FindFirstFile command not working

mjggjm12 · Jul 25, 2016

I am trying to open a file in a user program using the FindFileFirst() command.
It will not find the file. I will find the file if I point to a specific file using this command:
hFile := OpenFile("/LOGS/LOG1/07251200.CSV", 0);

but if I try this:
Name := FindFileFirst("/LOGS/LOG1"); it will not put a file name into the Name variable. Name is set to a cstring type.

Any help would be greatly appreciated.

gclshortt · Jul 26, 2016

I have not tried this on Crimson 3 but have you tried a wildcard?
Name := FindFileFirst("/LOGS/LOG1/*.CSV");

Just a thought.

Regards,

mjggjm12 · Jul 26, 2016

I tried it without the asterisk. I will try it with and see if that works. Although, the way I did it is exactly how the manual shows it.

mts5096 · Jul 26, 2016

Did you try "/LOGS/LOG1/" -- with a trailing / ?

Epy · Jul 26, 2016

mjggjm12 said:
I tried it without the asterisk. I will try it with and see if that works. Although, the way I did it is exactly how the manual shows it.

The copy of the reference I have shows a trailing slash:

Code:

Name := FindFileFirst(“/LOGS/LOG1/”)

mjggjm12 · Jul 26, 2016

Yes I do have the trailing slash in there. I must have forgot the last slash when I typed it into the post.
Here it is again copied from my code: Name := FindFileFirst("/logs/Log1/");

Epy · Jul 27, 2016

Probably faster to just email support... support at redlion.net. They're pretty fast with responses. I don't know if they charge for more complicated support requests, but I know they don't charge for asking simple questions about functions and whatnot. Love Red Lion.

mjggjm12 · Jul 27, 2016

I talked to Red Lion Support on the phone and he e-mailed me some code to convert the year month day and hour into a string because the files in the data logger are named YYMMDDHH. Since each one of my log file are 24 hours long using this will always give me the most recent file. I just use 00 for the hour instead of the current hour because the files all start at midnight.

BryanG · May 3, 2018

This is an old thread but I had the same problem and couldn't find a solution.

Answer is that FindFileFirst returns a '.' a following FindFileNext gets you '..' and then another FindFileNext finally gets you the name of the first file in the folder. It doesn't seem to matter if you use C:/Foldername/ or /Foldername/ as pathname, both get the same result. You must have the trailing '/' or you will get the names of the folders in the root folder.

Crimson 3 FindFirstFile command not working

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