QAID # 17773 Published
Question / Problem:
Display an Alternative Image in the Document Viewer
Answer / Solution:
How to Display an Alternative Image in the Validation Document Viewer
A project demonstrating this behaviour can be found here: Example Project (created using KTM 3.5). To test the behaviour:
- Update the script for class "NewClass1" to correctly point to the "additional images" subfolder.
Doc1.xdcand press F8 to test Validation.
- Click the buttons to switch between images A and B.
Sometimes it is desirable to display an alternative image in the Document Viewer. This might be the case if, for example, you have access to an original scanned image before image cleanup was performed, and a Validation user could switch to this image to read details which might have been accidentally erased during cleanup.
A user should be able to control this process and switch between the original and "alternative" images at will.
- Add buttons to switch between images on the Validation form.
- Add script code to those buttons which switches the displayed image.
Private Sub ValidationForm_ButtonClicked(ByVal ButtonName As String, _ ByRef pXDoc As CASCADELib.CscXDocument) Select Case ButtonName Case "SwitchToImageA" DisplayImage pXDoc, _ "D:\Projects\Validation, change displayed image\additional images\A.tif" Case "SwitchToImageB" DisplayImage pXDoc, _ "D:\Projects\Validation, change displayed image\additional images\B.tif" End Select End Sub Sub DisplayImage(pXDoc As CASCADELib.CscXDocument, sImage As String) Dim FSO As Object Dim sCurrentImage As String, oImage As CscImage Dim lField As Long Set FSO = CreateObject("Scripting.FileSystemObject") 'Replace current image on disk with the new image. sCurrentImage = pXDoc.CDoc.Pages(0).GetImage.FileName FSO.CopyFile sImage, sCurrentImage, True Set oImage = New CscImage oImage.Load sCurrentImage pXDoc.CDoc.Pages(0).SetImage oImage 'Refresh doc viewer, ensuring that field data is preserved. For lField = 0 To pXDoc.Fields.Count - 1 pXDoc.Fields(lField).Preserve = True Next pXDoc.Reclassify pXDoc.ExtractionClass End Sub