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Date Posted: 17:56:31 12/19/00 Tue
Author: Michel
Subject: Re: How can I zoom a region, selected by mmQuickSelect
In reply to: Sergey 's message, "How can I zoom a region, selected by mmQuickSelect" on 13:37:53 12/19/00 Tue

Dear Sergey,

There is no "built-in" manner to do this. I would recommend using the mmSelect mouse mode to first select the region.

Then it is possible to recalculate an appropriate zoom by comparing the size of the selected area with the size of the displayed graphic.

To get the currently selected region use:

(ImageScrollBox.MouseHandler as TRubberBandMouseHandler).GetSelection(Rect);

The coordinates are with respect to the displayed graphic. The displayed graphic is accessible through the

ImageScrollBox.DisplayedGraphic property.

Then you could position the image on the scroll box using the ImageScrollBox.HorzScrollBar and VertScrollBar properties.

Best regards,


>Please, advise me.
>How can I zoom a region, selected by mmQuickSelect or
>other methods?
>I mean:
>User select the rectangular area and then selected
>area zoomed to "show selected"/
>Thank you very much.

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