[Lazarus] Program version

Michael Van Canneyt michael at freepascal.org
Thu Nov 7 16:20:36 CET 2013

On Thu, 7 Nov 2013, Sven Barth wrote:

> Am 07.11.2013 15:08, schrieb Antonio Fortuny:
>> Hi again.
>> I succeeded to make one source unit which when used into any Lazarus unit, 
>> gives the version of any file as far as the file :
>> - has been compiled whith Lazarus or Delphi
>> - version information is in the resource data ad hoc (as Lazarus and Delphi 
>> provide)
>> The file to analyze can be any executable file provided that the standard 
>> OS signatures are at the beginning of the file:
>> - 'MZ' as the first two chars of the file for any windows program 
>> (inclusive WinCE)
>> - #127+'ELF' as the first four chars of a Linux executable file
>> The unit can be compiled by Lazarus (or FPC I guess) on Win32, Win64, Linux 
>> x86_64 (I guess i386 too)
>> Targets can be Win32, WinCE, Win64, Linux x86_64
>> A program using the version unit runs on Win32, win64, winCE, Linux x86_64
>> Whatever the target can be, there is no need to change anything. Same 
>> source runs on all named platforms.
>> In case of trouble, the unit is supposed not to blow up. It gives a blank 
>> version intead.ยต
>> See th source unit as attachment.
> Note: as you are using the platform independant fcl-res it should run on any 
> platform where fcl-res is supported and can read any PE (Win32, Win64, WinCE, 
> NativeNT) or ELF (all supported Linux and likely also supported FreeBSD, 
> NetBSD and OpenBSD systems and maybe also others (Solaris?)) binary where we 
> support using resources.

The fileinfo unit - distributed by default with FPC - has this functionality since ages.
It allows you to extract any information from the version info resource, on all supported 
FPC platforms.


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