Debenu - QuickPDF - Loads a PDF document from a byte array stored as a Variant type

[mLipok]

here is an Documentation for Debenu QuickPDF - Function:  LoadFromVariant  

http://www.debenu.com/docs/pdf_library_reference/LoadFromVariant.php

Those who know me, they could see that I had language problems;)

Therefore, I would ask for help in understanding this part of the documentation:

Loads a PDF document from a byte array stored as a Variant type.

 

I hope I will be able to use this function to directly read the PDF document stored in MS SQL database as binary data without having to write them to a file and then read from the file

 

 

The following piece of binary data read from the database MS SQL:

0x255044462D312E340A25E2E3CFD30A312030206F626A0A3C3C0A2F4D65746164617461203220302052 .........

 

 

mLipok

ps.

I am in the process of creating the appropriate UDF for AutoIt.

EDIT:

More specifically, in terms of what AutoIt is the wording: "byte array"

Edited April 26, 2014 by mLipok

[JohnOne]

There is no translation in language

a byte array is a byte array.

Maybe you mean how to write...

DllStructCreate("byte[128]")

A byte array of 128 bytes.

[mLipok]

using $oQP.SaveToFile($sFileName)   I did a test:

Func _QPdf_Example_HelloWorld()
    Local $sFileName = @ScriptDir & "\hello-world.pdf"
    Local $oQP = ObjCreate($__sClassName)
    If __QPdf_UnlockKey($oQP, $__sLicenseKey) = 1 Then
;~      $oQP.AddPageLabels(1, 1, 10, '_QPdf_Example_HelloWorld()')
        $oQP.SetOrigin(1);
        $oQP.SetTextSize(20);
        $oQP.DrawText(100, 100, "Hello world from AutoIt")
        If $oQP.SaveToFile($sFileName) = 1 Then
            MsgBox($MB_SYSTEMMODAL, "Info", "File " & $sFileName & " written successfully.")
        Else
            MsgBox($MB_SYSTEMMODAL, "Error", "File " & $sFileName & " could not be written.")
        EndIf
        $aByteArray = $oQP.SaveToVariant()
        MsgBox($MB_SYSTEMMODAL, '$oQP.SaveToVariant()', VarGetType($aByteArray))
        Local $fHandle = FileOpen($sFileName, 16 + 128)
        $aByteArray2 = FileRead($fHandle)
        FileClose($fHandle)
        MsgBox($MB_SYSTEMMODAL, 'Compare results:', $aByteArray = $aByteArray2)

        FileDelete(@ScriptDir & '\aByteArray.txt.')
        FileWrite(@ScriptDir & '\aByteArray.txt.', $aByteArray)
        FileDelete(@ScriptDir & '\aByteArray2.txt.')
        FileWrite(@ScriptDir & '\aByteArray2.txt.', $aByteArray2)

    EndIf
EndFunc   ;==>_QPdf_Example_HelloWorld
; ===============================================================================================================================

So altogether, it is a simple binary variable.

There are two differences arising out of various recording time to file and to a variable.

/ModDate (D:20140426221401+02'00')
/ModDate (D:20140426221400+02'00')
<xmp:ModifyDate>2014-04-26T22:14:01+02:00</xmp:ModifyDate>
<xmp:ModifyDate>2014-04-26T22:14:00+02:00</xmp:ModifyDate>