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Date Posted: 07:48:59 01/29/01 Mon
Author: Michel
Subject: Re: Overlaid Cross
In reply to: Bob Villiers 's message, "Overlaid Cross" on 19:48:49 01/28/01 Sun


Hi Bob,

I'm not sure I understand exactly what you are attempting to do. If there are some interactions with the mouse, I would create a TMouseHandler derived class. If not, I don't see any preferences.


Best regards,

Michel


>I have a bitmap about 2000 x 300 pixels and am
>displaying a 300 x 400 segment. I wish to be able to
>mark a point on the segment with a cross, scroll the
>image so that the marked point (and the cross) is off
>screen, and when scrolling back redisplay the cross.
>
>My options seem to be to, (a) display useing an
>ImageScrollbox with added canvas and add a mouse
>handler to generate the cross, (b) use a TImage
>contained in a Scrollbox and draw the cross on the
>image canvas (or add a canvas) and lastly, (c) draw
>image and cross on a PaintBox contained in a
>ScrollBox. The last seems the most straight forward
>but I would welcome suggestions.
>
>Bob

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