Occurs when the user performs interactive change of the current page using the mouse.
public event EventHandler<RasterViewerLineEventArgs> InteractivePage
public:
event EventHandler<RasterViewerLineEventArgs^>^ InteractivePage
public:
event EventHandler<RasterViewerLineEventArgs^>^ InteractivePage
The event handler receives an argument of type RasterViewerLineEventArgs containing data related to this event. The following RasterViewerLineEventArgs properties provide information specific to this event.
Property | Description |
---|---|
Begin | Returns the beginning point for the current interactive mode line. |
Cancel (Inherited from Leadtools.WinForms.RasterViewerInteractiveEventArgs) | Gets or sets a value indicating whether the interactive mode should be canceled. |
End | Returns the end point for the current interactive mode line. |
Status (Inherited from Leadtools.WinForms.RasterViewerInteractiveEventArgs) | Gets the current status of the interactive mode. |
Only occurs when the InteractiveMode property is set to RasterViewerInteractiveMode.Page.
This sample loads all pages of a multipage file into the viewer, and lets you drag the mouse to view the pages. Also, it displays the contents of the InteractivePage event in the console
using Leadtools.WinForms;
using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing.Color;
using Leadtools.Drawing;
private void viewer_InteractivePage(object sender, RasterViewerLineEventArgs e)
{
RasterImageViewer viewer = sender as RasterImageViewer;
if (e.Status == RasterViewerInteractiveStatus.Begin)
viewer.Cursor = Cursors.SizeNS;
else if (e.Status == RasterViewerInteractiveStatus.End)
viewer.Cursor = Cursors.Default;
Console.WriteLine("InteractivePage: e.Begin {0}, e.End{1}, e.Status {2}, e.Cancel {3}", e.Begin, e.End, e.Status, e.Cancel);
}
public void RasterImageViewer_InteractivePage(RasterImageViewer viewer)
{
// Load a multipage file
RasterCodecs codecs = new RasterCodecs();
viewer.Image = codecs.Load(Path.Combine(LEAD_VARS.ImagesDir, "eye.gif"));
codecs.Dispose();
viewer.InteractiveMode = RasterViewerInteractiveMode.Page;
viewer.InteractivePage += new EventHandler<RasterViewerLineEventArgs>(viewer_InteractivePage);
MessageBox.Show("Drag mouse across image to view different pages");
// After you are done, you must remove the event handler as in below
//
// viewer.InteractivePage -= new EventHandler<RasterViewerLineEventArgs>(viewer_InteractivePage);
}
static class LEAD_VARS
{
public const string ImagesDir = @"C:\LEADTOOLS22\Resources\Images";
}
Help Collections
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