PdfViewer.GetClientPoint(PdfDocumentPosition) Method
Returns the client point corresponding to the specified PDF coordinates.
Namespace: DevExpress.XtraPdfViewer
Assembly: DevExpress.XtraPdfViewer.v24.1.dll
NuGet Package: DevExpress.Win.PdfViewer
Declaration
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.
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)));
}
}
}
}
}
Related GitHub Examples
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.