ASCIIZ Arrays

[Scott Turchin]

I've taken the cab file samples and put them in a DLL, so that only one function has to be called.
But when I pass an ASCIIZ array to it it only returns the first value.

I'm thinking twilight zone music righht now because this sounds SO familiar as if I had read it somewhere here..

Anyway here's a sample:

Declare Function CCSCabInsert Lib "CCSCAB.DLL"(CabFileSpec As String,CAB_FILES() As Asciiz * 256) As Long
Declare Function CCSCabExtract Lib "CCSCAB.DLL"(CabFileSpec As String, CAB_FILES() As Asciiz * 256,DestDirectory As String,DeleteFlag As Long) As Long

'Inside of DLL, other functions have access to this, could this be the problem?
Global CAB_FILES() As Asciiz * %MAX_PATH + 1


'
CabFileSpec = "C:\CABTEST\CCS.CAB"
CAB_FILES(1) = "C:\CABTEST\WINLOG.EXE"
CAB_FILES(2) = "C:\CABTEST\CCS.DLL"
CAB_FILES(3) = "C:\CABTEST\CCSDATE.DLL"
CAB_FILES(4) = "C:\CABTEST\CCSENCR.DLL"

CCSCabInsert CabFileSpec, CAB_FILES()

The function at the beginning ONLY gets the CAB_FILES(1).

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Scott
mailto:[email protected][email protected]</A>
MCSE, MCP+Internet

[This message has been edited by Scott Turchin (edited June 25, 2000).]

[Lance Edmonds]

Obviously if we can see the actual code within the function we could probably provide exact help.

However, it is interesting to note that your function declaration is expecting an ASCIIZ array whose members are 256 bytes each, %MAXPATH + 1 is not equal to 256. If you are using an equate to define the array subscript length, why are you using hard-coded numbers in some parts? This just makes the code harder to maintain.

Ok, it may also be a good idea to provide the DIM statement you are using to define your ASCIIZ array... you have only give us the global declaration.




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Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>

[Scott Turchin]

OK good point on the MAXPATH, however I think it is also dimmed at 255, I'll verify.
I'm going to hard code all of it at 256 for now as I can't seem to FIND The Max_Path in the DLL

Dim CAB_FILES(1 To 100) As Asciiz * 256

'
'
'DLL CODE:

'------------------------------------------------------------------------------------------------------------------------
Function CCSCabInsert(CabFileSpec As String,CAB_FILES() As Asciiz * 256 )Export As Long
Local lCount As Long
Local lLoop As Long
'lCount is now the array index
lCount = ArrayFileCount(CAB_FILES())
Dim fciErr As ERF

If IsFalse FCI_LoadLib Then
   MsgBox "Could not open dll FCI.DLL!", %MB_ICONSTOP, g_szCCS
   Exit Function
End If

hCabFile = FCI_Create(CabFileSpec, 0)
If IsFalse hCabFile Then
   MsgBox "Failed to create cab file" + CabFileSpec,  %MB_ICONSTOP, g_szCCS
   Exit Function
End If

For lLoop = 1 To LCount
    If IsFalse FCI_AddFile( hCabFile, CAB_FILES(lLoop), "", %tcompTYPE_MSZIP, 0, 0 ) Then
       MsgBox "Unable to insert file " & CAB_FILES(lLoop), %MB_ICONSTOP,g_szCCS
       Exit Function
    End If
Next
If IsFalse FCI_Close( hCabFile ) Then
   Function = %FALSE
Else
   Function = %TRUE
End If
FCI_FreeLib
End Function 

'
'------------------------------------------------------------------------------------------------------------------------
Function ArrayFileCount(CAB_FILES() As Asciiz * 256)Export As Long
Local lLoop As Long
Local lCount As Long
For lLoop = 1 To 1000
    If Len(CAB_FILES(lLoop)) Then Incr lCount Else Exit For
Next
Function = lCount
End Function
'
'

------------------
Scott
mailto:[email protected][email protected]</A>
MCSE, MCP+Internet

[Lance Edmonds]

Scott, how much debugging of this code have you done? You need to find out what the code is really doing. One way is to copy the code into a small "stub" and debug it as an EXE. Otherwise, you have to find the exact point it fails by inserting MSGBOX or logging variables and loop counters to a disk file.

One note: the call to the ArrayFileCount() function could be replaced with a single line of code:

ARRAY SCAN CAB_FILES(1), = "", to lCount

------------------
Lance
PowerBASIC Support
mailto:[email protected][email protected]</A>

[Scott Turchin]

There are some powerful options in PB when dealing with Arrays!

That seems to have resolved the issue, I saw all 5 files going to the function now...

Thanks Lance!

Scott


------------------
Scott
mailto:[email protected][email protected]</A>
MCSE, MCP+Internet

[Cecil Williams]

Scott,

%MAX_PATH = 260 is located in the "win32api.inc" file.

Cheers,
Cecil


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