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Date Posted: 03:19:49 01/31/04 Sat
Author: Andreas
Subject: Re: Add an Image as anotation from stream
In reply to: Michel 's message, "Re: Add an Image as anotation from stream" on 21:11:04 01/26/04 Mon

thanks it works :-)

>Hi Andreas,
>You need to create TempGraphic of the proper type
>instead of TDibGraphic. Then use
>Do you know in advance what type of graphic is in the
>Stream? If you don't know, you can use,
>EnDiGrph.GuessDibGraphicClass to determine the graphic
>Best regards,
>>Dear forum,
>>i tried to add an image as an anotation without first
>>adding it with TImageScrollBox->AddImage()
>>and then change the properties and load an image.
>>The code below works fine if I load the picture from a
>>But now i want to load the image from a stream which
>>has been filled by the
>>TImageScrollBox->SaveToStream() function.
>>Maybee somebody has a hint
>>function TAnnotationsEditor.AddImageAt(const iX:
>> const iY:
>>Integer ;
>> const iStream
>>: TStream): TImageMark;
>> TempRect :TRect;
>> TempImage :TImage;
>> TempGraphic :TDibGraphic;
>> FChanged := True;
>> Result := TImageMark( Items[FMarks.Add(
>>TImageMark.Create( Self))]);
>> TempGraphic:= TDibGraphic.Create;
>> TempImage:=TImage.Create(Self);
>> TempImage.Picture.LoadFromFile('tmp0.jpg');
>> TempGraphic.Assign(TempImage.Picture.Graphic);
>> Result.DIBHandle:=TempGraphic.AsDibHandle;
>> TempRect.Left := iX;
>> TempRect.Top := iY;
>> TempRect.Right := TempGraphic.Width+iX;
>> TempRect.Bottom := TempGraphic.Height+iY;
>> Result.MarkRect := TempRect;
>> Result.ZoomFactor := FZoomFactor;
>> Result.Parent := FDisplaySurface;
>> Result.EditMode := FEditMode;

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