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aziascreations/UTPackageVersion.pbi

Created November 10, 2018 01:04
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A basic procedure to check Unreal Engine package's version in PureBasic
Raw
UTPackageVersion.pbi
; As described in:
; http://eliotvu.com/page/unreal-package-file-format
Enumeration UnrealEngineVersion
; U and U2 are also missing (U could be 69 since it's the same engine ?)
#UE_UT99 = 69
; UT2003 is missing from the docs :/
#UE_UT_UT2004 = 128
#UE_UT_UT3 = 512
; Is UT4 fixed or one of those ?
#UE_UDK_November = 648
#UE_UDK_December = 664
#UE_UDK_January = 678
#UE_UDK_May = 706
#UE_UNKNOWN = 1
EndEnumeration
Procedure GetPackageEngineVersion(FilePath$, ReturnNegativeOnError.b = #False, ReturnUnchangedVersion.b = #False)
Protected FileID, EngineVersion = #UE_UNKNOWN
If FileSize(FilePath$) < 6
If ReturnNegativeOnError
ProcedureReturn -1
Else
ProcedureReturn 0
EndIf
EndIf
FileID = ReadFile(#PB_Any, FilePath$)
If Not FileID
If ReturnNegativeOnError
ProcedureReturn -2
Else
ProcedureReturn 0
EndIf
EndIf
ReadLong(FileID)
EngineVersion = ReadWord(FileID)
CloseFile(FileID)
If Not ReturnUnchangedVersion
If EngineVersion <> #UE_UT99 And
EngineVersion <> #UE_UT_UT2004 And
EngineVersion <> #UE_UT_UT3 And
EngineVersion <> #UE_UDK_November And
EngineVersion <> #UE_UDK_December And
EngineVersion <> #UE_UDK_January And
EngineVersion <> #UE_UDK_May
; The number read is not supported
EngineVersion = #UE_UNKNOWN
EndIf
EndIf
ProcedureReturn EngineVersion
EndProcedure
CompilerIf #PB_Compiler_IsMainFile
Debug GetPackageEngineVersion("D:\Jeux\UnrealTournament\Textures\Ascorp.utx", #True, #True)
CompilerEndIf
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