How to RemoveAllPages from the IRasterImage object of the RasterImageViewer

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#1 Posted : Friday, September 30, 2005 12:41:19 PM(UTC)

Travis

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This VB.NET example shows how one would empty the RasterImageViewer's Image object. If the IRasterImage object contains more than one page, RemoveAllPages will remove all pages excluding the IRasterImage itself, so the PageCount will still show 1 page. To free the object, you set it equal to Nothing.

Should you call RemoveAllPages when the PageCount equals 1 you will get an error regarding the state of the object. This is because there are no pages for the function to remove.

How to use this example:

Load up some pages with the load button, then press RemoveAllPages to remove them. Next load one image, then call RemoveAllPages. You'll see that my code checks to see if the PageCount is equal to 1.

File Attachment(s):

NET - V14 - RemoveAllPages.zip (581kb) downloaded 171 time(s).

Travis Montgomery
Senior Sales Engineer


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#2 Posted : Tuesday, March 27, 2012 11:56:33 PM(UTC)

Ibrahim

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Posts: 3,022

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I've updated this project to use the LEADTOOLS v17.5 in VB.NET using Visual Studio 2008. This project helps you to know how to delete all pages that been loaded by the user.

File Attachment(s):

VBNET_v175_RemoveAllPages.zip (11kb) downloaded 169 time(s).

#3 Posted : Tuesday, March 27, 2012 11:57:25 PM(UTC)

Ibrahim

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Posts: 3,022

Was thanked: 2 time(s) in 2 post(s)

The attachment includes the same project that uses LEADTOOLS v17.5 DLLs but in C# using Visual Studio 2008.

File Attachment(s):

CS_v175_RemoveAllPages.zip (15kb) downloaded 172 time(s).

#4 Posted : Tuesday, May 23, 2017 1:30:31 PM(UTC)

Duncan Quirk

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Posts: 70

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Updated to to use LEADTOOLS v19 in C# using Visual Studio 2017.

File Attachment(s):

CS_v19_RemoveAllPages.zip (11kb) downloaded 165 time(s).

Duncan Quirk
Developer Support Engineer
LEAD Technologies, Inc.

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