Platforms to show: All Mac Windows Linux Cross-Platform
/DynaPDF/Raster/RenderPageToImage with color management
Required plugins for this example: MBS Win Plugin, MBS MacBase Plugin, MBS DynaPDF Plugin, MBS Images Plugin, MBS Main Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /DynaPDF/Raster/RenderPageToImage with color management
This example is the version from Tue, 21th Jan 2019.
Project "RenderPageToImage with color management.xojo_binary_project"
Class App Inherits Application
Const kEditClear = "&Löschen"
Const kFileQuit = "Beenden"
Const kFileQuitShortcut = ""
EventHandler Sub NewDocument()
dim f as FolderItem = GetOpenFolderItem(FileTypes1.Pdf)
if f<>Nil then
OpenDocument f
end if
End EventHandler
EventHandler Sub OpenDocument(item As FolderItem)
run item
End EventHandler
Sub run(item as FolderItem)
dim pdf as new MyDynapdfMBS // your DynaPDF subclass with Error event filled
pdf.SetLicenseKey "Pro" // For this example you can use a Pro or Enterprise License
call pdf.CreateNewPDF nil
// load CharacterMaps if you want to correctly process asian fonts
'call pdf.SetCMapDir(SpecialFolder.Desktop.Child("CMap"), pdf.klcmRecursive)
call pdf.SetImportFlags(pdf.kifImportAll + pdf.kifImportAsPage)
// init color management
dim ScreenProfile as FolderItem
if TargetWin32 then
// win plugin
ScreenProfile = GetWindowsColorProfileMBS
else
// mac plugin
dim screen as NSScreenMBS = NSScreenMBS.mainScreen
dim colorspace as NSColorSpaceMBS = screen.colorSpace
if colorspace <> nil then
ScreenProfile = colorspace.File
end if
end if
dim profiles as new DynaPDFColorProfilesMBS
Profiles.DefInCMYK = nil // default
Profiles.DefInGray = nil // default
Profiles.DefInRGB = nil // default
Profiles.DeviceProfile = ScreenProfile
Profiles.SoftProof = nil // default
if pdf.InitColorManagement(profiles, pdf.kcsDeviceRGB, pdf.kicmBPCompensation) then
// open file
call pdf.OpenImportFile(item,0,"")
// add page
call pdf.Append
// import the first page
call pdf.ImportPageEx(1,1.0,1.0)
call pdf.EndPage
dim p as DynaPDFPageMBS = pdf.GetPage(1)
dim ra as DynaPDFRectMBS = p.BBox(p.kpbArtBox)
dim rb as DynaPDFRectMBS = p.BBox(p.kpbBleedBox)
dim rc as DynaPDFRectMBS = p.BBox(p.kpbCropBox)
dim rm as DynaPDFRectMBS = p.BBox(p.kpbMediaBox)
dim rt as DynaPDFRectMBS = p.BBox(p.kpbTrimBox)
// render the page
call pdf.RenderPageToImage(1, nil, 72, 0, 0, DynaPDFRasterImageMBS.krfDefault, DynaPDFRasterizerMBS.kpxfRGB, DynaPDFMBS.kcfFlate, DynaPDFMBS.kifmPNG)
dim buf as string = pdf.GetImageBuffer
dim pic as Picture = PNGStringToPictureMBS(buf)
dim w as new PicWindow
w.Backdrop = pic
w.show
end if
End Sub
End Class
MenuBar MenuBar1
MenuItem FileMenu = "&Ablage"
MenuItem FileQuit = "#App.kFileQuit"
MenuItem EditMenu = "&Bearbeiten"
MenuItem EditUndo = "&Rückgängig"
MenuItem UntitledMenu1 = "-"
MenuItem EditCut = "&Ausschneiden"
MenuItem EditCopy = "&Kopieren"
MenuItem EditPaste = "&Einfügen"
MenuItem EditClear = "#App.kEditClear"
MenuItem UntitledMenu0 = "-"
MenuItem EditSelectAll = "&Alles auswählen"
End MenuBar
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
FileTypes1
Filetype application/pdf
End FileTypes1
Class PicWindow Inherits Window
End Class
End Project
See also:
The items on this page are in the following plugins: MBS DynaPDF Plugin.