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Date Posted: 20:46:42 11/03/03 Mon
Author: Michel
Subject: Re: Questions about Select
In reply to: Azurea Skyes 's message, "Questions about Select" on 05:13:25 10/31/03 Fri


Hi All,

For those interested, here are the changes to set the selection band programatically.

1: Add the following method in EnRubber.Pas


procedure TRubberbandMouseHandler.SetSelection( Rect : TRect );
begin
if FBandVisible then
RemoveBand;

AdjustRect(Rect);

FY1 := Rect.Top;
FY2 := Rect.Bottom;
FX1 := Rect.Left;
FX2 := Rect.Right;

if not FBandVisible then
DrawBand;
end;

2: Use like this:

(ImageScrollBox.MouseHandler as TRubberbandMouseHandler).SetSelection(
Rect( 20, 20, 200, 200 ));

Best regards,

Michel




>Is it possible to pre-size the select rectangle? I
>have need to allow someone to select a 256x400
>selection from an image (no more, no less). I then
>need to make a new picture 256x512 pixels in size,
>with the previously selected area at the top (leaving
>the remaining area black). Finally saving it as a TGA
>bitmap.
>
>Any thoughts?
>I am currently evaluating Envision, and if someone can
>demonstrate this ... it's a sale... if not... back to
>the drawing board.
>
>Azurea.

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