Platforms to show: All Mac Windows Linux Cross-Platform
Required plugins for this example: MBS XMP Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /XMP/Create XMP
This example is the version from Sat, 2nd Apr 2021.
Project "Create XMP.xojo_binary_project"
Class App Inherits Application
Const kEditClear = "&Löschen"
Const kFileQuit = "Beenden"
Const kFileQuitShortcut = ""
End Class
Class Window1 Inherits Window
Const kXMP_PropValueIsArray = &h200
EventHandler Sub Open()
Dim file As FolderItem = SpecialFolder.Desktop.Child("sample.png")
// use XMPFilesMBS to open file
dim flags as integer = XMPFilesMBS.kOpenForUpdate
dim xf as new XMPFilesMBS(file, XMPFilesMBS.kUnknownFile, flags)
// now read the metadata
dim xmp as new XMPMetaMBS
dim PacketInfo as XMPPacketInfoMBS
dim xmppacket as string
if xf.GetXMP(xmp, xmppacket, PacketInfo) then
// read
Else
// we start with blank one
end if
// and dump to test file
Dim outputfile As FolderItem = SpecialFolder.Desktop.Child("before.txt")
Dim output As New MyXMPTextOutputMBS(outputfile)
Call xmp.DumpObject(output)
// here we add XMP value:
xmp.AppendArrayItem ( xmp.kNS_XMP, "subject", kXMP_PropValueIsArray, "AAAA" )
// and dump to test file
outputfile = SpecialFolder.Desktop.Child("after.txt")
output = New MyXMPTextOutputMBS(outputfile)
Call xmp.DumpObject(output)
// update file
If xf.CanPutXMP(xmp) Then
xf.PutXMP(xmp)
xf.CloseFile(XMPFilesMBS.kUpdateSafely)
Else
MsgBox "Can't update."
End If
End EventHandler
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 MyXMPTextOutputMBS Inherits XMPTextOutputMBS
EventHandler Function Output(text as string) As integer
TextStream.Write text
Return 0 // OK
End EventHandler
Sub Constructor(file as FolderItem)
self.file = file
self.TextStream = TextOutputStream.Create(file)
End Sub
Property TextStream As TextOutputStream
Property file As FolderItem
End Class
End Project
See also:
The items on this page are in the following plugins: MBS XMP Plugin.
