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I am creating a Delphi interface to a DOS system still in use and need to be able to read the existing index files. The software documentation says "... uses the b+ tree algorithms with ten keys per node. Key files are defined as primary or secondary. Primary keys must be unique. If you...

Please look at my code snippets below. I am reading data from a file created by an old DOS app. My code works, I can read the file. My question is, am I correct in using the array[] of char to store the data. If so, how can I get the arrays into strings so I can manipulate them and then get...

Doug Burbidge, thank you for your help. Here is what threw me off track and I still have not figured it out. If I do a hex file dump of the data file, the data is stored as $000493E0. If I read it into a LongInt variable(x) in Delphi and do a IntToHex(x), I get $E0930400. I solved the problem by...

I am writing a Delphi app to read/write data files created by an old DOS app written in C ( Armor Systems - Advantage). I am stuck trying to read a field used to figure mark-up percentages. They are storing this field in "Motorola model" which I assume means "Big Endian&quot...