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(VB.NET UWP/WinRT) Get a Structure Property Value from XMPDemonstrates how to open a JPG or TIF image file, access the XMP metadata, and fetch the value of a structure property, such as the Iptc4xmpCore:CiTelWork (found within the Iptc4xmpCore:CreatorContactInfo structure).
' This requires the Chilkat API to have been previously unlocked. ' See Global Unlock Sample for sample code. Dim xmp As New Chilkat.Xmp ' Load a JPG or TIF image file. ' Sample JPG's with XMP metadata may be found at: ' http://www.chilkatsoft.com/testData/xmp/sample1.jpg ' http://www.chilkatsoft.com/testData/xmp/sample2.jpg ' http://www.chilkatsoft.com/testData/xmp/sample3.jpg Dim success As Boolean = xmp.LoadAppFile("sample1.jpg") If (success <> True) Then Debug.WriteLine(xmp.LastErrorText) Exit Sub End If Debug.WriteLine("Num embedded XMP docs: " & xmp.NumEmbedded) ' Assuming there is at least one, get the 1st. ' (There is typically never more than one, but theoretically it's possible.) Dim xml As Chilkat.Xml = xmp.GetEmbedded(0) If (xmp.LastMethodSuccess = True) Then Dim propVal As String = xmp.GetStructValue(xml,"Iptc4xmpCore:CreatorContactInfo","Iptc4xmpCore:CiTelWork") If (xmp.LastMethodSuccess <> True) Then Debug.WriteLine("Not found.") Else Debug.WriteLine(propVal) End If Else Debug.WriteLine(xmp.LastErrorText) End If |
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