[SOLVED] BGRAVirtualScreen - Set Image Size
lazarus / 39-Graphics

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pixelink · 2019-07-13 16:47

Hi,

Getting an image on the BGRAVirtualScreen works fine.

However, I want to resize the BGRAVirtualScreen's width and height to
match the actual image size so i can just place in a scrollbox to have
an easy working scrollbar.

Zooming would be nice too if you can point me to some good example
docs/code.

Thanks

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pixelink · 2019-07-13 18:17

Figured it out.

Code: Pascal  [Select][+][-]window.onload = function(){var x1 =
document.getElementById("main_content_section"); if (x1) { var x =
document.getElementsByClassName("geshi");for (var i = 0; i gif:= TBGRA
AnimatedGif.Create(fName);BGRAVirtualScreen1.width:=gif.width;BGRAVirt
ualScreen1.height:=gif.height;

I was confused by the face that the intellisense didn't display any
methods.

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lainz · 2019-07-13 20:50

Zooming an image is like taking a rectangle of the source image and
scaling it up, then displaying it on the BGRAVirtualScreen.

You can see how it's done in LazPaint, but his source code is very
big.

Is not so easy, but is not that hard, you can try yourself to code one
zooming function.

I did one for a level editor, included in BGRAGames, for example,
there you have another source code, this one I think is a lot smaller
than LazPaint, but his domain is not images but sprite maps.