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Date Posted: 03:42:33 10/30/01 Tue
Author: Niek Bakker
Subject: Re: How to create an application to have thumbnails?
In reply to: ANDREW DIABO 's message, "How to create an application to have thumbnails?" on 16:23:21 10/25/01 Thu

Andrew,

you can do this by using a Listview.
1. Add all the image-files you want to browse to the items property of a TListView component.
2. Connect an empty TImageList component to your ListView. You can specify a width and height of 128 (pixels) to view large icons.
3. In the onCustomDrawItem-eventhandler add code to retrieve the image from disk and convert it to a bitmap to draw in the ICON-rect space on the Listview's canvas.
4. To speed things up, you could use a TClientDataSet to store all the to a small bitmap converted images. So that in the above mentioned eventhandler you can retrieve the images from the clientdataset. This works pretty fast!

Hope this helps,
Niek Bakker
>I would like to create an application that can browse
>for a folder that has image files and display them in
>a series of thumbnails. Any demo project that I can
>get to demonstrate this? Any help is greatly
>appreciated.
>
>Thanks
>Andrew

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Replies:

  • Re: How to create an application to have thumbnails? -- Tim Griffin, 10:46:01 10/31/01 Wed
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