StackOverflow2013

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19453885
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2013-10-18T15:54:10.403
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2014-06-11T10:50:56.630
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2014-06-11T10:50:56.630
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790842
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2
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3
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text
Body
<p>I found the solution, In order for the content to get displayed, an Appearance ("AP") Dictionary has to be set.</p> <p>This could be used for that:</p> <pre><code>void PdfField::CreateFieldAppearance(PdfMemDocument *memDoc, const PdfString &value) { if( !m_pWidget->HasAppearanceStream() ) { PdfRect pageRect; PdfPainter painter; PoDoFo::PdfRect rect = this->GetWidgetAnnotation()->GetRect(); unsigned int width = rect.GetWidth(); unsigned int height = rect.GetHeight(); PdfRect pdfRect(0, 0, width, height); PdfXObject xObj(pdfRect, memDoc); painter.SetPage(&xObj); painter.SetClipRect(pdfRect); painter.Save(); painter.SetColor(221.0/255.0, 228.0/255.0, 1.0); painter.FillRect(0, 0, width, height); painter.Restore(); // make rotation painter.Save(); /***********************************************************************************/ // Rotation Logic double angle = this->GetPage()->GetRotation(); if (angle) { double radAngle = angle * M_PI / 180; int cosA = (int)cos(radAngle); int sinA = (int)sin(radAngle); double translateY = rect.GetWidth(); // The View goes out of the bound, sits on top painter.SetTransformationMatrix(cosA, sinA, -sinA, cosA, translateY, 0); } /***********************************************************************************/ PdfFont *font = memDoc->CreateFont("Helvetica", true, false); font->SetFontSize(15); // Do the drawing painter.SetFont(font); painter.BeginText(10, 5); painter.SetStrokeWidth(20); painter.AddText(value); painter.EndText(); painter.FinishPage(); // This is very important. Not only does it disable the editing. // Also it does correct the appearance issue on Adobe Readers. this->SetReadOnly(true); // The Stream Object has to be saved to the annotation PoDoFo::PdfDictionary dict; dict.AddKey( "N", xObj.GetObject()->Reference() ); this->GetFieldObject()->GetDictionary().AddKey( "AP", dict ); } } </code></pre>
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1. This table or related slice is empty.
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1. POUpdate Widgets in PDF using Podofo
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1. PTAnswer
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1. USiphonic
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1. USQamar Suleiman
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1. POUpdate Widgets in PDF using Podofo
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