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Date Posted: 17:53:55 02/21/01 Wed
Author: Michel
Subject: Re: TImageScrollBox to bitmap?
In reply to: Hans 's message, "TImageScrollBox to bitmap?" on 09:55:16 02/21/01 Wed


Hi Hans,

Yes, indeed, it is more difficult to use Envision with CBuilder than with Delphi. A full featured CBuilder example and better documentation is pending but my resources are limited. I'll try to help you through the support forum.

It is not necessary to use the TImageScrollBox when you do not want to display an image. In Delphi, to enable the Envision supported formats in TImage, you need to add EnReg (or individually the related units, ie, EnBmpGr,...) to a uses clause. In CBuilder, from the Project menu, use Add to project and add the EnReg.Pas file. Then you can change the supported formats in the Envision.Inc.

With this step done, TImage should have the Envision formats available. It is also possible to bypass TImage alltogether by using a TBitmapGraphic. But remember that VCL (Delphi) classes must be instanciated with a New call:

TBitmapGraphic *BitmapGraphic = new(TBitmapGraphic);
BitmapGraphic->LoadFromFile(...);

...

delete BitmapGraphic;

Best regards,

Michel

>I might add to my prev messages that I also do not see
>how to go through TImage if I want to.
>TImage->LoadFromFile also does not support the extra
>formats Envision adds. I then tried TImageScrollBox
>and it does load the image (but since I do not need to
>see the image I think it is a waste of memory) but
>even then I cannot copy the image to a bitmap as
>TImageScrollBox does not have a bitmap.
>
>It appears Envision is not as easy to use as
>C++Builder. A few examples in the manual or on the web
>site would be a welcome addition :)
>
>Hans

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