Articles and Code Samples

Re: Multi-Page Tiff Viewer Control

vinny950 — Thu, 05 Apr 2007 21:03:08 GMT

Hey bill

Thanks for the code-I inherited your updateableTiffFile.cs to use on my application.Here is my problem.

When I select the first thumbnail, it appeared on the workspaceviewer as I expected but when I select the second thumnail I expect the first one to dissappear on the worspaceviewer and the selected to appear but I get this error

Argumentoutofrangeexpection--in the following line

this.workspaceViewer1.Open(_simpleTiffFile.CacheFilename, _currentFrame);

with following (height must be greater than 0, parameter name height.

here is my code on selectedindex changed event

private void thumbScans_SelectedIndexChanged(object sender, System.EventArgs e)

{

if (thumbScans.SelectedIndices.Length > 0 && thumbScans.SelectedIndices[0] != _currentFrame)

{

_currentFrame = thumbScans.SelectedIndices[0];

this.workspaceViewer1.Open(_simpleTiffFile.CacheFilename, _currentFrame);

this.workspaceViewer1.Undos.Clear();

OnSelectedImageChanged(EventArgs.Empty);

}

any solution

thanks in advance

Re: Multi-Page Tiff Viewer Control

Bill Bither — Sun, 25 Mar 2007 00:14:57 GMT

There's a bug in the attached project. After line 121 in UpdateableTiffFile.cs, add this line of code:

fs.Seek(0, SeekOrigin.Begin);

Multi-Page Tiff Viewer Control

Bill Bither — Fri, 16 Feb 2007 04:48:02 GMT

I have created a small control library useful for efficiently viewing and editing multipage TIFF documents. This control displays all pages in a multi-page document in the thumbnail view on the left, and the main full size image that is viewed when the user clicks on the thumbnail to the left. It stores a temporary file cache containing a multi-page TIFF and edits are made to this TIFF in-place using our TiffFile functionality. Manipulating an image will update the thumbnail, and update the file cache. The thumbnail and image viewer are linked via events. This control is great to use when scanning in a batch of documents as you do not need to have each image in memory at the same time, yet it displays each page as a thumbnails nicely and quickly. It can be used to view and edit a document with many (hundreds) of pages with a save to TIFF simply copying the TiffFile cache.

I've attached source code for this control which has references to DotImage 5.0 Beta (can be used just as well with DotImage 4.0).

This is an extension to our DotImage Document Imaging SDK, and not officially supported. Please post any questions about this control to this thread.

Enjoy!