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/DynaPDF/Create PDF with DeviceN Colorspace
Required plugins for this example: MBS DynaPDF Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /DynaPDF/Create PDF with DeviceN Colorspace
This example is the version from Sun, 23th Sep 2017.
Project "Create PDF with DeviceN Colorspace.xojo_binary_project"
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() // In this example we create a DeviceN color space that contains the process colorants Cyan, Magenta, and Yellow. // The alternate color space is of course DeviceCMYK. The definition of the PostScript calculator function is // very simple in this example because we need to add the missing Black component only. The array cls includes // also the Black component here because we need the colorant names later to add the definition of the process // components to the DeviceN color space: dim pdf as new MyDynapdfMBS dim d as new date dim f as FolderItem = SpecialFolder.Desktop.Child("Create PDF with DeviceN Colorspace.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 call pdf.Append dim cls() as string = array("Cyan", "Magenta", "Yellow") // without "Black" dim ps as string = "{0}" // Just add the missing Black component // Note that the Black component is not part of the DeviceN color space dim cs as integer = pdf.CreateDeviceNColorSpace(cls, ps, pdf.kesDeviceCMYK, -1) // Optional but strongly recommended: Add the defintion of the process // colorants to the DeviceN color space. cls = array("Cyan", "Magenta", "Yellow", "Black") call pdf.AddDeviceNProcessColorants(cs, cls, pdf.kesDeviceCMYK, -1) // Draw a rectangle in the alternate DeviceCMYK color space call pdf.SetFillColorSpace(pdf.kcsDeviceCMYK) call pdf.SetFillColor(pdf.CMYK(135, 65, 160, 0)) call pdf.Rectangle(50.0, 50.0, 200.0, 100.0, pdf.kfmFill) // Now we use the DeviceN color space. The colors of both rectangles must // be identically. If you see a difference, then disable the output // preview in Adobe's Acrobat, since the color is converted into the // simulation profile otherwise... call pdf.SetExtColorSpace(cs) call pdf.SetFillColorEx 135, 65, 160 call pdf.Rectangle(50.0, 150.0, 200.0, 100.0, pdf.kfmFill) call pdf.EndPage 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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