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PdfViewer.GetClientPoint(PdfDocumentPosition) Method

Returns the client point corresponding to the specified PDF coordinates.

Namespace: DevExpress.XtraPdfViewer

Assembly: DevExpress.XtraPdfViewer.v24.2.dll

NuGet Package: DevExpress.Win.PdfViewer

#Declaration

public PointF GetClientPoint(
    PdfDocumentPosition documentPosition
)

#Parameters

Name Type Description
documentPosition PdfDocumentPosition

A PdfDocumentPosition object.

#Returns

Type Description
PointF

A PointF structure.

#Remarks

This example shows how to use the Graphics.FillRectangle method to draw a rectangle.

View Example: How to custom draw in PDF Viewer

using DevExpress.Pdf;
using System;
using System.Drawing;
using System.Windows.Forms;

namespace CustomDraw
{
    public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();
            pdfViewer1.MouseDown += pdfViewer1_MouseDown;
            pdfViewer1.MouseMove += pdfViewer1_MouseMove;
            pdfViewer1.MouseUp += pdfViewer1_MouseUp;
            pdfViewer1.Paint += pdfViewer1_Paint;
        }

        bool mouseButtonPressed = false;
        PdfDocumentPosition startPosition;
        PdfDocumentPosition endPosition;

        void pdfViewer1_MouseDown(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                startPosition = pdfViewer1.GetDocumentPosition(e.Location);
                endPosition = null;
                mouseButtonPressed = true;
                pdfViewer1.Invalidate();
            }
        }

        void pdfViewer1_MouseMove(object sender, MouseEventArgs e)
        {
            if (mouseButtonPressed)
            {
                endPosition = pdfViewer1.GetDocumentPosition(e.Location);
                pdfViewer1.Invalidate();
            }
        }

        void pdfViewer1_MouseUp(object sender, MouseEventArgs e)
        {
            mouseButtonPressed = false;
        }

        void pdfViewer1_Paint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            g.DrawRectangle(Pens.Red, new Rectangle(150, 150, 800, 50));

            if (startPosition != null && endPosition != null)
            {
                PointF startPoint = pdfViewer1.GetClientPoint(startPosition);
                PointF endPoint = pdfViewer1.GetClientPoint(endPosition);

                using (SolidBrush blueBrush = new SolidBrush(Color.FromArgb(128, Color.Aqua)))
                {
                    g.FillRectangle(blueBrush,
                    RectangleF.FromLTRB(Math.Min(startPoint.X, endPoint.X), Math.Min(startPoint.Y, endPoint.Y),
                    Math.Max(startPoint.X, endPoint.X), Math.Max(startPoint.Y, endPoint.Y)));
                }
            }
        }
    }
}

The following code snippet (auto-collected from DevExpress Examples) contains a reference to the GetClientPoint(PdfDocumentPosition) 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.

See Also