// NOTE: Overlay two PDF files and give the visual color diff between them
// Used to review two document revisions or drawing blueprints that are overlayed with updated data
private async void ProcessVisualDiff()
{
var docA = mPDFViewCtrlA.GetDoc();
var docB = mPDFViewCtrlB.GetDoc();
DiffOptions diffOptions = new DiffOptions();
diffOptions.SetColorA(new ColorPt(1, 0, 0));
diffOptions.SetColorB(new ColorPt(0, 0, 0));
diffOptions.SetBlendMode(GStateBlendMode.e_bl_normal);
pdftron.PDF.Page docAPage = docA.GetPage(1);
pdftron.PDF.Page docBPage = docB.GetPage(1);
try
{
PDFDoc outputDocument = new PDFDoc();
outputDocument.AppendVisualDiff(docAPage, docBPage, diffOptions);
Controls.PDFResultDialog contentDialog = new Controls.PDFResultDialog();
var pdfCompare = new PDFCompareResult(outputDocument);
pdfCompare.CloseButtonClicked += delegate
{
contentDialog.Hide();
};
contentDialog.Content = pdfCompare;
await contentDialog.ShowAsync();
}
catch (Exception ex)
{ }
}
