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/DynaPDF/Create PDF with hidden data
Required plugins for this example: MBS DynaPDF Plugin, MBS Images Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /DynaPDF/Create PDF with hidden data
This example is the version from Sun, 23th Sep 2017.
Project "Create PDF with hidden data.rbp"
Filetype text
End FileTypes
MenuBar MenuBar1
MenuItem UntitledMenu1 = ""
MenuItem FileMenu = "&File"
MenuItem FileQuit = "Quit"
MenuItem EditMenu = "&Edit"
MenuItem EditUndo = "&Undo"
MenuItem UntitledMenu0 = "-"
MenuItem EditCut = "Cu&t"
MenuItem EditCopy = "&Copy"
MenuItem EditPaste = "&Paste"
MenuItem EditClear = "Clear"
End MenuBar
Class App Inherits Application
EventHandler Sub Open() const Compressed = false dim pdf as new MyDynapdfMBS dim d as new date dim f as FolderItem = SpecialFolder.Desktop.Child("Create PDF with hidden data.pdf") pdf.SetLicenseKey "Pro" // For this example you can use a Pro or Enterprise License call pdf.CreateNewPDF f call pdf.SetDocInfo pdf.kdiSubject, "My first Xojo output" call pdf.SetDocInfo pdf.kdiProducer, "Xojo test application" call pdf.SetDocInfo pdf.kdiTitle, "My first Xojo output" // We want to use top-down coordinates call pdf.SetPageCoords pdf.kpcTopDown // disable compression of PDF, so we can read stuff in editor if Compressed then call pdf.SetCompressionLevel(pdf.kclMax) else call pdf.SetCompressionLevel(pdf.kclNone) end if call pdf.Append // hide data in ICC profile dim prof as LCMS2ProfileMBS = LCMS2ProfileMBS.CreateSRGBProfile // from LCMS2 Plugin dim sigm as MemoryBlock = "TEST" dim sigd as MemoryBlock = "This is hidden text appended to ICC Profile." call prof.WriteRawTag( sigm.Int32Value(0), sigd) dim data as string = prof.SaveProfileToString dim h as integer = pdf.CreateICCBasedColorSpaceEx(data) call pdf.SetExtColorSpace(h) // write something on page call pdf.SetFont "Times", pdf.kfsItalic, 40.0, true, pdf.kcp1252 call pdf.WriteFText pdf.ktaCenter, "My first Xojo output!" call pdf.SetFont "Times", pdf.kfsItalic, 20.0, true, pdf.kcp1252 call pdf.WriteText 50.0, 180.0, "File created: " + d.LongDate call pdf.EndPage // attach file // put attachment there without compression call pdf.AttachFileEx("This is hidden text in an attached file.", "attachment.txt", "", Compressed) call pdf.CloseFile f.Launch quit End EventHandler
End Class
Class MyDynaPDFMBS Inherits DynaPDFMBS
EventHandler Function Error(ErrorCode as integer, ErrorMessage as string, ErrorType as integer) As integer // output all messages on the console: System.DebugLog str(ErrorCode)+": "+ErrorMessage // and display dialog: Dim d as New MessageDialog //declare the MessageDialog object Dim b as MessageDialogButton //for handling the result d.icon=MessageDialog.GraphicCaution //display warning icon d.ActionButton.Caption="Continue" d.CancelButton.Visible=True //show the Cancel button // a warning or an error? if BitAnd(ErrorType, me.kE_WARNING) = me.kE_WARNING then // if user decided to ignore, we'll ignore if IgnoreWarnings then Return 0 d.Message="A warning occurred while processing your PDF code." // we add a third button to display all warnings d.AlternateActionButton.Caption = "Ignore warnings" d.AlternateActionButton.Visible = true else d.Message="An error occurred while processing your PDF code." end if d.Explanation = str(ErrorCode)+": "+ErrorMessage b=d.ShowModal //display the dialog Select Case b //determine which button was pressed. Case d.ActionButton Return 0 // ignore Case d.AlternateActionButton IgnoreWarnings = true Return 0 // ignore Case d.CancelButton Return -1 // stop End select End EventHandler
Property IgnoreWarnings As Boolean
End Class
End Project

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The items on this page are in the following plugins: MBS DynaPDF Plugin.

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