Occurs once for each page saved to an image file.
Syntax
Example
Visual Basic | Copy Code |
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RasterCodecs.SavePage
Public Sub SavePageExample()
RasterCodecs.Startup()
Dim codecs As RasterCodecs = New RasterCodecs()
Dim srcFileName As String = "C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Eye.gif"
Dim destFileName As String = "C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Eye_SavePage.gif"
Dim image As RasterImage = codecs.Load(srcFileName)
Console.WriteLine("Original image has {0} pages", image.PageCount)
AddHandler codecs.SavePage, AddressOf codecs_SavePage
codecs.Save(image, destFileName, RasterImageFormat.Gif, 0, 1, image.PageCount, 1, CodecsSavePageMode.Overwrite)
RemoveHandler codecs.SavePage, AddressOf codecs_SavePage
Dim info As CodecsImageInfo = codecs.GetInformation(destFileName, True)
Console.WriteLine("Info reports {0} pages saved to the file", info.TotalPages)
Debug.Assert(info.TotalPages = (image.PageCount - 1))
image.Dispose()
codecs.Dispose()
RasterCodecs.Shutdown()
End Sub
Private Sub codecs_SavePage(ByVal sender As Object, ByVal e As CodecsPageEventArgs)
If e.State = CodecsPageEventState.Before AndAlso e.Page = 1 Then
Console.WriteLine("Saving {0} pages to {1}. Image size is {2} by {3}", e.PageCount - 1, e.FileName, e.Image.Width, e.Image.Height)
End If
If e.State = CodecsPageEventState.After Then
Console.WriteLine("{0} saving page {1}:{2}", "After", e.Page, e.PageCount)
Else
Console.WriteLine("{0} saving page {1}:{2}", "Before", e.Page, e.PageCount)
End If
If e.Page = 2 AndAlso e.State = CodecsPageEventState.Before Then
e.Command = CodecsPageEventCommand.Skip
Console.WriteLine("--- Skipping this page, there should be no 'After' for this one")
End If
End Sub |
C# | Copy Code |
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RasterCodecs.SavePage public void SavePageExample() { RasterCodecs.Startup(); RasterCodecs codecs = new RasterCodecs(); string srcFileName = @"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Eye.gif"; string destFileName = @"C:\Program Files\LEAD Technologies\LEADTOOLS 15\Images\Eye_SavePage.gif"; // Load all the pages in the file RasterImage image = codecs.Load(srcFileName); Console.WriteLine("Original image has {0} pages", image.PageCount); // Add a handler to the SavePage event codecs.SavePage += new EventHandler<CodecsPageEventArgs>(codecs_SavePage); // Save all the pages of this file codecs.Save(image, destFileName, RasterImageFormat.Gif, 0, 1, image.PageCount, 1, CodecsSavePageMode.Overwrite); codecs.SavePage -= new EventHandler<CodecsPageEventArgs>(codecs_SavePage); // Check if we saved all pages but 1 CodecsImageInfo info = codecs.GetInformation(destFileName, true); Console.WriteLine("Info reports {0} pages saved to the file", info.TotalPages); Debug.Assert(info.TotalPages == (image.PageCount - 1)); image.Dispose(); // Clean up codecs.Dispose(); RasterCodecs.Shutdown(); } void codecs_SavePage(object sender, CodecsPageEventArgs e) { if(e.State == CodecsPageEventState.Before && e.Page == 1) { // Before saving the first page, show the save operation information Console.WriteLine( "Saving {0} pages to {1}. Image size is {2} by {3}", e.PageCount - 1, e.FileName, e.Image.Width, e.Image.Height); } Console.WriteLine("{0} saving page {1}:{2}", e.State == CodecsPageEventState.After ? "After" : "Before", e.Page, e.PageCount); // If this is the 2nd page, ignore it if(e.Page == 2 && e.State == CodecsPageEventState.Before) { e.Command = CodecsPageEventCommand.Skip; Console.WriteLine("--- Skipping this page, there should be no 'After' for this one"); } } |
Remarks
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family
See Also