PdfViewerControl.ConvertPixelToDocumentPosition(Point) Method

Returns the page number and page coordinates corresponding to a point.

Namespace: DevExpress.Xpf.PdfViewer

Assembly: DevExpress.Xpf.PdfViewer.v23.2.dll

NuGet Package: DevExpress.Wpf.PdfViewer

Declaration

C#

public PdfDocumentPosition ConvertPixelToDocumentPosition(
    Point point
)

VB.NET

Public Function ConvertPixelToDocumentPosition(
    point As Point
) As PdfDocumentPosition

Parameters

Name	Type	Description
point	Point	A Point object.

Returns

Type	Description
PdfDocumentPosition	A PdfDocumentPosition object.

Remarks

If a document does not contain pages, the ConvertPixelToDocumentPosition method returns null.

If a point does not refer to a document page, the ConvertPixelToDocumentPosition method returns the PdfDocumentPosition object with the following parameters:

PdfDocumentPosition(1, new PdfPoint())

The code sample below determines the page number of a clicked page in the MouseDown event handler.

C#

private void PdfViewer_MouseDown(object sender, MouseButtonEventArgs e)
{
    PdfDocumentPosition position = pdfViewer.ConvertPixelToDocumentPosition(e.GetPosition(pdfViewer));
    MessageBox.Show(string.Format("You clicked on page {0}", position.PageNumber));
}

VB.NET

Private Sub PdfViewer_MouseDown(ByVal sender As Object, ByVal e As MouseButtonEventArgs)
    Dim position As PdfDocumentPosition = pdfViewer.ConvertPixelToDocumentPosition(e.GetPosition(pdfViewer))
    MessageBox.Show(String.Format("You clicked on page {0}", position.PageNumber))
End Sub

Related GitHub Examples

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the ConvertPixelToDocumentPosition(Point) method.

Note

The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.

C#

how-to-draw-a-rectangle-over-a-PDF-document/CS/WpfApplication1/PdfSelectionBehavior.cs#L29

endPoint.Offset(selectionAdorner.OffSet.X, selectionAdorner.OffSet.Y);
PdfDocumentPosition startPosition = AssociatedObject.ConvertPixelToDocumentPosition(documentPanel.TranslatePoint(startPoint, AssociatedObject));
PdfDocumentPosition endPosition = AssociatedObject.ConvertPixelToDocumentPosition(documentPanel.TranslatePoint(endPoint, AssociatedObject));

VB.NET

how-to-draw-a-rectangle-over-a-PDF-document/VB/WpfApplication1/PdfSelectionBehavior.vb#L31

endPoint.Offset(selectionAdorner.OffSet.X, selectionAdorner.OffSet.Y)
Dim startPosition As PdfDocumentPosition = AssociatedObject.ConvertPixelToDocumentPosition(documentPanel.TranslatePoint(startPoint, AssociatedObject))
Dim endPosition As PdfDocumentPosition = AssociatedObject.ConvertPixelToDocumentPosition(documentPanel.TranslatePoint(endPoint, AssociatedObject))