[fpc-pascal] File-functions on various platforms??

[Thomas Zastrow]

Hello,

for a little FPC-/Lazarus-project I need some routines working on the 
filesystem - for example: "Give me (recursivly) all *mp3-Files in this 
directory".

Searching around in the online-documenation, I found that FPC knows 
functions like FindFirst, FindNext and so on.

My question is: Are these function are working both on Linux and on 
Windows??? Using an OpenFileDialog in Lazarus and take it's property 
"filename" for input/output of these functions, will it work both on 
Windows and Linux??? Are there any functions for converting 
Windows-Path's to Unix-Path's???

Thanks,

Tom